/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops/eureka_01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-1a84f73 [2021-05-01 06:39:48,644 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-01 06:39:48,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-01 06:39:48,673 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-01 06:39:48,682 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-01 06:39:48,683 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-01 06:39:48,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-01 06:39:48,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-01 06:39:48,685 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-01 06:39:48,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-01 06:39:48,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-01 06:39:48,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-01 06:39:48,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-01 06:39:48,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-01 06:39:48,693 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-01 06:39:48,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-01 06:39:48,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-05-01 06:39:48,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-01 06:39:48,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-01 06:39:48,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-01 06:39:48,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2021-05-01 06:39:48,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-01 06:39:48,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-01 06:39:48,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-01 06:39:48,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-01 06:39:48,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-01 06:39:48,720 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-01 06:39:48,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-01 06:39:48,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-01 06:39:48,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-01 06:39:48,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-05-01 06:39:48,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-01 06:39:48,721 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2021-05-01 06:39:48,721 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-01 06:39:48,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-01 06:39:48,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-01 06:39:48,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-01 06:39:48,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-01 06:39:48,969 INFO L275 PluginConnector]: CDTParser initialized [2021-05-01 06:39:48,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/eureka_01-2.c [2021-05-01 06:39:49,014 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b760d23c/f531d637e213488f8d162871ba9b8421/FLAGe62391ffc [2021-05-01 06:39:49,322 INFO L306 CDTParser]: Found 1 translation units. [2021-05-01 06:39:49,322 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_01-2.c [2021-05-01 06:39:49,328 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b760d23c/f531d637e213488f8d162871ba9b8421/FLAGe62391ffc [2021-05-01 06:39:49,729 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0b760d23c/f531d637e213488f8d162871ba9b8421 [2021-05-01 06:39:49,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-01 06:39:49,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-01 06:39:49,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-01 06:39:49,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-01 06:39:49,740 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-01 06:39:49,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:49,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@320031f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49, skipping insertion in model container [2021-05-01 06:39:49,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:49,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-01 06:39:49,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-01 06:39:49,876 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_01-2.c[323,336] [2021-05-01 06:39:49,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:39:49,900 INFO L203 MainTranslator]: Completed pre-run [2021-05-01 06:39:49,912 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/eureka_01-2.c[323,336] [2021-05-01 06:39:49,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-01 06:39:49,995 INFO L208 MainTranslator]: Completed translation [2021-05-01 06:39:49,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49 WrapperNode [2021-05-01 06:39:49,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-01 06:39:49,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-01 06:39:49,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-01 06:39:49,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-01 06:39:50,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,046 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (1/1) ... [2021-05-01 06:39:50,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-01 06:39:50,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-01 06:39:50,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-01 06:39:50,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-01 06:39:50,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (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 [2021-05-01 06:39:50,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-05-01 06:39:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-01 06:39:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-05-01 06:39:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-05-01 06:39:50,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-05-01 06:39:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-05-01 06:39:50,131 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-01 06:39:50,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-01 06:39:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-01 06:39:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-05-01 06:39:50,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-01 06:39:50,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-01 06:39:50,459 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-05-01 06:39:50,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:39:50 BoogieIcfgContainer [2021-05-01 06:39:50,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-01 06:39:50,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-01 06:39:50,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-01 06:39:50,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-01 06:39:50,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.05 06:39:49" (1/3) ... [2021-05-01 06:39:50,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec39116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:39:50, skipping insertion in model container [2021-05-01 06:39:50,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.05 06:39:49" (2/3) ... [2021-05-01 06:39:50,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec39116 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.05 06:39:50, skipping insertion in model container [2021-05-01 06:39:50,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.05 06:39:50" (3/3) ... [2021-05-01 06:39:50,471 INFO L111 eAbstractionObserver]: Analyzing ICFG eureka_01-2.c [2021-05-01 06:39:50,491 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-05-01 06:39:50,498 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-01 06:39:50,510 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-01 06:39:50,543 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-01 06:39:50,543 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-01 06:39:50,544 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-05-01 06:39:50,544 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-01 06:39:50,544 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-01 06:39:50,544 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-01 06:39:50,544 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-01 06:39:50,544 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-01 06:39:50,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 28 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-05-01 06:39:50,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 06:39:50,558 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:50,558 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:50,559 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:50,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:50,562 INFO L82 PathProgramCache]: Analyzing trace with hash -10776725, now seen corresponding path program 1 times [2021-05-01 06:39:50,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:50,568 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544589682] [2021-05-01 06:39:50,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:50,610 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:50,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:50,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:50,776 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:50,779 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:50,779 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544589682] [2021-05-01 06:39:50,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [544589682] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:50,781 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:50,781 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-05-01 06:39:50,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997846179] [2021-05-01 06:39:50,783 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-05-01 06:39:50,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:50,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-05-01 06:39:50,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 06:39:50,792 INFO L87 Difference]: Start difference. First operand has 35 states, 27 states have (on average 1.5555555555555556) internal successors, (42), 28 states have internal predecessors, (42), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:50,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:50,884 INFO L93 Difference]: Finished difference Result 61 states and 85 transitions. [2021-05-01 06:39:50,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-05-01 06:39:50,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-01 06:39:50,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:50,888 INFO L225 Difference]: With dead ends: 61 [2021-05-01 06:39:50,888 INFO L226 Difference]: Without dead ends: 30 [2021-05-01 06:39:50,890 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-05-01 06:39:50,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-05-01 06:39:50,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-05-01 06:39:50,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 24 states have internal predecessors, (31), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:50,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2021-05-01 06:39:50,913 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 17 [2021-05-01 06:39:50,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:50,913 INFO L480 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2021-05-01 06:39:50,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:50,913 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-05-01 06:39:50,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-05-01 06:39:50,914 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:50,914 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:50,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-01 06:39:50,914 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:50,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:50,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2004250474, now seen corresponding path program 1 times [2021-05-01 06:39:50,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:50,915 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442378768] [2021-05-01 06:39:50,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:50,917 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:50,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,960 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:50,966 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:50,994 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:50,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:50,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:50,995 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:50,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442378768] [2021-05-01 06:39:50,995 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [442378768] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:50,995 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:50,995 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-01 06:39:50,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271665844] [2021-05-01 06:39:50,996 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-01 06:39:50,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:50,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-01 06:39:50,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 06:39:50,997 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:51,090 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2021-05-01 06:39:51,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-01 06:39:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2021-05-01 06:39:51,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:51,093 INFO L225 Difference]: With dead ends: 54 [2021-05-01 06:39:51,093 INFO L226 Difference]: Without dead ends: 33 [2021-05-01 06:39:51,094 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-01 06:39:51,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-05-01 06:39:51,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 31. [2021-05-01 06:39:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2021-05-01 06:39:51,112 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 17 [2021-05-01 06:39:51,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:51,112 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2021-05-01 06:39:51,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,113 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-05-01 06:39:51,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-05-01 06:39:51,113 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,113 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:51,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-05-01 06:39:51,114 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1025073247, now seen corresponding path program 1 times [2021-05-01 06:39:51,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,114 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1537269779] [2021-05-01 06:39:51,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,127 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:51,131 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:39:51,197 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:51,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:51,250 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,250 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1537269779] [2021-05-01 06:39:51,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1537269779] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:39:51,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878430452] [2021-05-01 06:39:51,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:39:51,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:39:51,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,252 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:51,344 INFO L93 Difference]: Finished difference Result 61 states and 74 transitions. [2021-05-01 06:39:51,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:39:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2021-05-01 06:39:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:51,347 INFO L225 Difference]: With dead ends: 61 [2021-05-01 06:39:51,347 INFO L226 Difference]: Without dead ends: 46 [2021-05-01 06:39:51,349 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.7ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-05-01 06:39:51,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2021-05-01 06:39:51,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 26 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:51,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2021-05-01 06:39:51,366 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 20 [2021-05-01 06:39:51,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:51,366 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2021-05-01 06:39:51,366 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-05-01 06:39:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-05-01 06:39:51,367 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,367 INFO L519 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] [2021-05-01 06:39:51,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-01 06:39:51,368 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,369 INFO L82 PathProgramCache]: Analyzing trace with hash -315835948, now seen corresponding path program 1 times [2021-05-01 06:39:51,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,369 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404943145] [2021-05-01 06:39:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,375 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:51,377 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,409 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:51,412 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:51,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:51,418 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,419 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,448 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:51,449 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,449 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404943145] [2021-05-01 06:39:51,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1404943145] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:39:51,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281076946] [2021-05-01 06:39:51,451 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:39:51,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:39:51,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,452 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:51,528 INFO L93 Difference]: Finished difference Result 55 states and 67 transitions. [2021-05-01 06:39:51,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:39:51,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-05-01 06:39:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:51,529 INFO L225 Difference]: With dead ends: 55 [2021-05-01 06:39:51,529 INFO L226 Difference]: Without dead ends: 35 [2021-05-01 06:39:51,530 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.8ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-05-01 06:39:51,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 33. [2021-05-01 06:39:51,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 27 states have internal predecessors, (34), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:51,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2021-05-01 06:39:51,539 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 23 [2021-05-01 06:39:51,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:51,539 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2021-05-01 06:39:51,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.8) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,540 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-05-01 06:39:51,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-05-01 06:39:51,541 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,541 INFO L519 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] [2021-05-01 06:39:51,541 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-01 06:39:51,541 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,542 INFO L82 PathProgramCache]: Analyzing trace with hash -873463802, now seen corresponding path program 1 times [2021-05-01 06:39:51,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1628301709] [2021-05-01 06:39:51,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,545 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:51,546 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,592 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:51,595 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:51,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:51,601 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:51,631 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1628301709] [2021-05-01 06:39:51,631 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1628301709] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:39:51,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49679261] [2021-05-01 06:39:51,632 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:39:51,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:39:51,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,633 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:51,712 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2021-05-01 06:39:51,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:39:51,713 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2021-05-01 06:39:51,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:51,713 INFO L225 Difference]: With dead ends: 58 [2021-05-01 06:39:51,713 INFO L226 Difference]: Without dead ends: 47 [2021-05-01 06:39:51,714 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 25.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-05-01 06:39:51,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2021-05-01 06:39:51,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:51,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2021-05-01 06:39:51,722 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 26 [2021-05-01 06:39:51,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:51,722 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2021-05-01 06:39:51,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,723 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2021-05-01 06:39:51,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-05-01 06:39:51,723 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,723 INFO L519 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] [2021-05-01 06:39:51,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-01 06:39:51,723 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1835268693, now seen corresponding path program 1 times [2021-05-01 06:39:51,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417117426] [2021-05-01 06:39:51,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,728 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:51,729 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,778 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:51,784 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:51,787 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:51,813 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417117426] [2021-05-01 06:39:51,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1417117426] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:39:51,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713061746] [2021-05-01 06:39:51,814 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:39:51,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:39:51,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,817 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:51,884 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2021-05-01 06:39:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:39:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2021-05-01 06:39:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:51,888 INFO L225 Difference]: With dead ends: 63 [2021-05-01 06:39:51,888 INFO L226 Difference]: Without dead ends: 39 [2021-05-01 06:39:51,888 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 24.0ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-01 06:39:51,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 37. [2021-05-01 06:39:51,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-05-01 06:39:51,897 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 29 [2021-05-01 06:39:51,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:51,897 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-05-01 06:39:51,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-05-01 06:39:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-01 06:39:51,898 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:51,898 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 06:39:51,898 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-05-01 06:39:51,898 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:51,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:51,898 INFO L82 PathProgramCache]: Analyzing trace with hash 533557236, now seen corresponding path program 2 times [2021-05-01 06:39:51,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:51,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [280543785] [2021-05-01 06:39:51,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:51,902 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:51,904 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,936 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:51,942 INFO L142 QuantifierPusher]: treesize reduction 13, result has 38.1 percent of original size [2021-05-01 06:39:51,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-05-01 06:39:51,947 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-05-01 06:39:51,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:51,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:51,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:51,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:51,975 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:51,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [280543785] [2021-05-01 06:39:51,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [280543785] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:51,975 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:51,975 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-01 06:39:51,977 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199035993] [2021-05-01 06:39:51,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-01 06:39:51,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:51,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-01 06:39:51,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:51,978 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,044 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2021-05-01 06:39:52,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-01 06:39:52,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-05-01 06:39:52,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,046 INFO L225 Difference]: With dead ends: 68 [2021-05-01 06:39:52,046 INFO L226 Difference]: Without dead ends: 39 [2021-05-01 06:39:52,047 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.7ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-01 06:39:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-05-01 06:39:52,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 38. [2021-05-01 06:39:52,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 32 states have (on average 1.21875) internal successors, (39), 32 states have internal predecessors, (39), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:52,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2021-05-01 06:39:52,055 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 32 [2021-05-01 06:39:52,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,055 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2021-05-01 06:39:52,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,056 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2021-05-01 06:39:52,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-05-01 06:39:52,057 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,057 INFO L519 BasicCegarLoop]: trace histogram [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] [2021-05-01 06:39:52,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-05-01 06:39:52,057 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,057 INFO L82 PathProgramCache]: Analyzing trace with hash 752411954, now seen corresponding path program 1 times [2021-05-01 06:39:52,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1630314385] [2021-05-01 06:39:52,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,062 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:52,063 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,088 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,092 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,112 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:52,113 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1630314385] [2021-05-01 06:39:52,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1630314385] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,113 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,113 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 06:39:52,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927278128] [2021-05-01 06:39:52,113 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 06:39:52,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 06:39:52,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:39:52,114 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,199 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2021-05-01 06:39:52,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 06:39:52,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-05-01 06:39:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,200 INFO L225 Difference]: With dead ends: 66 [2021-05-01 06:39:52,200 INFO L226 Difference]: Without dead ends: 42 [2021-05-01 06:39:52,201 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 26.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:39:52,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-05-01 06:39:52,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2021-05-01 06:39:52,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.2058823529411764) internal successors, (41), 34 states have internal predecessors, (41), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:52,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2021-05-01 06:39:52,205 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 32 [2021-05-01 06:39:52,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,205 INFO L480 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2021-05-01 06:39:52,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.666666666666667) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,205 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2021-05-01 06:39:52,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-05-01 06:39:52,206 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,206 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:52,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-01 06:39:52,206 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,206 INFO L82 PathProgramCache]: Analyzing trace with hash -240283891, now seen corresponding path program 2 times [2021-05-01 06:39:52,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473707049] [2021-05-01 06:39:52,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,214 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:52,215 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,241 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,247 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-05-01 06:39:52,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 06:39:52,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,270 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:52,302 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1473707049] [2021-05-01 06:39:52,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1473707049] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,302 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,302 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 06:39:52,302 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139727129] [2021-05-01 06:39:52,303 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 06:39:52,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 06:39:52,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:39:52,303 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,426 INFO L93 Difference]: Finished difference Result 93 states and 113 transitions. [2021-05-01 06:39:52,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 06:39:52,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2021-05-01 06:39:52,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,427 INFO L225 Difference]: With dead ends: 93 [2021-05-01 06:39:52,427 INFO L226 Difference]: Without dead ends: 69 [2021-05-01 06:39:52,427 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:39:52,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-05-01 06:39:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 46. [2021-05-01 06:39:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2021-05-01 06:39:52,432 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 35 [2021-05-01 06:39:52,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,432 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2021-05-01 06:39:52,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,432 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2021-05-01 06:39:52,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-05-01 06:39:52,432 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,432 INFO L519 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:52,433 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-01 06:39:52,433 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1283680124, now seen corresponding path program 3 times [2021-05-01 06:39:52,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,433 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1216525776] [2021-05-01 06:39:52,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,439 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:52,440 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,458 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,462 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,466 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,469 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,476 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,498 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:52,498 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,498 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1216525776] [2021-05-01 06:39:52,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1216525776] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,499 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 06:39:52,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681351935] [2021-05-01 06:39:52,499 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 06:39:52,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 06:39:52,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:39:52,499 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,573 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2021-05-01 06:39:52,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 06:39:52,573 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2021-05-01 06:39:52,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,574 INFO L225 Difference]: With dead ends: 86 [2021-05-01 06:39:52,574 INFO L226 Difference]: Without dead ends: 56 [2021-05-01 06:39:52,574 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 31.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:39:52,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2021-05-01 06:39:52,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 49. [2021-05-01 06:39:52,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 43 states have internal predecessors, (53), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:52,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 58 transitions. [2021-05-01 06:39:52,579 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 58 transitions. Word has length 41 [2021-05-01 06:39:52,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,579 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 58 transitions. [2021-05-01 06:39:52,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,579 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2021-05-01 06:39:52,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-05-01 06:39:52,580 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,580 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 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] [2021-05-01 06:39:52,580 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-01 06:39:52,580 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1817586423, now seen corresponding path program 4 times [2021-05-01 06:39:52,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457171077] [2021-05-01 06:39:52,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,588 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:52,588 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,613 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-05-01 06:39:52,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 06:39:52,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,632 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:52,665 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457171077] [2021-05-01 06:39:52,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [457171077] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 06:39:52,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006952607] [2021-05-01 06:39:52,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 06:39:52,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 06:39:52,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:39:52,666 INFO L87 Difference]: Start difference. First operand 49 states and 58 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:52,826 INFO L93 Difference]: Finished difference Result 119 states and 147 transitions. [2021-05-01 06:39:52,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 06:39:52,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 44 [2021-05-01 06:39:52,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:52,828 INFO L225 Difference]: With dead ends: 119 [2021-05-01 06:39:52,828 INFO L226 Difference]: Without dead ends: 89 [2021-05-01 06:39:52,831 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 66.7ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:39:52,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-05-01 06:39:52,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 55. [2021-05-01 06:39:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 49 states have (on average 1.2448979591836735) internal successors, (61), 49 states have internal predecessors, (61), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:52,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 66 transitions. [2021-05-01 06:39:52,853 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 66 transitions. Word has length 44 [2021-05-01 06:39:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:52,853 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 66 transitions. [2021-05-01 06:39:52,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 7 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:52,854 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 66 transitions. [2021-05-01 06:39:52,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-05-01 06:39:52,854 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:52,854 INFO L519 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:52,854 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-01 06:39:52,854 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:52,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:52,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1321273796, now seen corresponding path program 5 times [2021-05-01 06:39:52,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:52,855 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [297124612] [2021-05-01 06:39:52,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:52,862 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:52,864 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:52,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,898 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,899 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:52,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:52,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:52,943 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:52,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:52,944 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:52,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [297124612] [2021-05-01 06:39:52,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [297124612] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:52,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:52,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 06:39:52,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844967554] [2021-05-01 06:39:52,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 06:39:52,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:52,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 06:39:52,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:39:52,945 INFO L87 Difference]: Start difference. First operand 55 states and 66 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,057 INFO L93 Difference]: Finished difference Result 106 states and 129 transitions. [2021-05-01 06:39:53,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 06:39:53,058 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2021-05-01 06:39:53,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,058 INFO L225 Difference]: With dead ends: 106 [2021-05-01 06:39:53,058 INFO L226 Difference]: Without dead ends: 70 [2021-05-01 06:39:53,059 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 33.8ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:39:53,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-05-01 06:39:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 58. [2021-05-01 06:39:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 52 states have (on average 1.25) internal successors, (65), 52 states have internal predecessors, (65), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:53,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2021-05-01 06:39:53,067 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 50 [2021-05-01 06:39:53,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:53,067 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2021-05-01 06:39:53,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 7 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,068 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2021-05-01 06:39:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-05-01 06:39:53,069 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:53,070 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:53,070 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-05-01 06:39:53,070 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:53,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1910444767, now seen corresponding path program 6 times [2021-05-01 06:39:53,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:53,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180152134] [2021-05-01 06:39:53,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:53,078 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:53,079 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,106 INFO L142 QuantifierPusher]: treesize reduction 5, result has 76.2 percent of original size [2021-05-01 06:39:53,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-05-01 06:39:53,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,128 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,134 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,155 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,156 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:53,156 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:53,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180152134] [2021-05-01 06:39:53,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1180152134] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:53,156 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:53,156 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 06:39:53,156 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776337892] [2021-05-01 06:39:53,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 06:39:53,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:53,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 06:39:53,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:39:53,157 INFO L87 Difference]: Start difference. First operand 58 states and 70 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,329 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2021-05-01 06:39:53,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 06:39:53,329 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2021-05-01 06:39:53,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,330 INFO L225 Difference]: With dead ends: 145 [2021-05-01 06:39:53,330 INFO L226 Difference]: Without dead ends: 109 [2021-05-01 06:39:53,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 70.4ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:39:53,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-05-01 06:39:53,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 64. [2021-05-01 06:39:53,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 58 states have internal predecessors, (73), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:53,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 78 transitions. [2021-05-01 06:39:53,337 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 78 transitions. Word has length 53 [2021-05-01 06:39:53,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:53,337 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 78 transitions. [2021-05-01 06:39:53,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,337 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 78 transitions. [2021-05-01 06:39:53,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-05-01 06:39:53,338 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:53,338 INFO L519 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:53,338 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-05-01 06:39:53,338 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:53,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:53,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1365869398, now seen corresponding path program 7 times [2021-05-01 06:39:53,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:53,338 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2137140102] [2021-05-01 06:39:53,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:53,346 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:53,346 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:53,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,380 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,382 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,384 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,389 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,394 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:53,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,395 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:53,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:53,412 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:53,412 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2137140102] [2021-05-01 06:39:53,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2137140102] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:53,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:53,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 06:39:53,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551727987] [2021-05-01 06:39:53,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 06:39:53,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:53,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 06:39:53,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:39:53,413 INFO L87 Difference]: Start difference. First operand 64 states and 78 transitions. Second operand has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,473 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2021-05-01 06:39:53,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 06:39:53,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2021-05-01 06:39:53,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,474 INFO L225 Difference]: With dead ends: 120 [2021-05-01 06:39:53,474 INFO L226 Difference]: Without dead ends: 84 [2021-05-01 06:39:53,474 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:39:53,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-05-01 06:39:53,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2021-05-01 06:39:53,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 70 states have (on average 1.2714285714285714) internal successors, (89), 70 states have internal predecessors, (89), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:53,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 94 transitions. [2021-05-01 06:39:53,480 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 94 transitions. Word has length 59 [2021-05-01 06:39:53,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:53,481 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 94 transitions. [2021-05-01 06:39:53,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.166666666666667) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 94 transitions. [2021-05-01 06:39:53,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-05-01 06:39:53,481 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:53,481 INFO L519 BasicCegarLoop]: trace histogram [8, 8, 8, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:53,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-05-01 06:39:53,481 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:53,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:53,482 INFO L82 PathProgramCache]: Analyzing trace with hash 2115991730, now seen corresponding path program 8 times [2021-05-01 06:39:53,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:53,482 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503129710] [2021-05-01 06:39:53,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:53,488 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:53,489 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:53,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,518 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,527 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,533 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:53,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:53,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:53,553 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:53,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503129710] [2021-05-01 06:39:53,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [503129710] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:53,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:53,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 06:39:53,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576218693] [2021-05-01 06:39:53,553 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 06:39:53,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:53,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 06:39:53,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:39:53,566 INFO L87 Difference]: Start difference. First operand 76 states and 94 transitions. Second operand has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,630 INFO L93 Difference]: Finished difference Result 141 states and 182 transitions. [2021-05-01 06:39:53,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 06:39:53,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2021-05-01 06:39:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,631 INFO L225 Difference]: With dead ends: 141 [2021-05-01 06:39:53,631 INFO L226 Difference]: Without dead ends: 96 [2021-05-01 06:39:53,631 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:39:53,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-05-01 06:39:53,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-05-01 06:39:53,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:53,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 110 transitions. [2021-05-01 06:39:53,638 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 110 transitions. Word has length 71 [2021-05-01 06:39:53,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:53,638 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 110 transitions. [2021-05-01 06:39:53,639 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,639 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 110 transitions. [2021-05-01 06:39:53,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-05-01 06:39:53,639 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:53,639 INFO L519 BasicCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:53,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-05-01 06:39:53,639 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:53,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:53,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1359309354, now seen corresponding path program 9 times [2021-05-01 06:39:53,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:53,640 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464613541] [2021-05-01 06:39:53,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:53,645 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:53,646 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,675 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,676 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,678 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,682 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,687 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,693 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,699 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:53,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:53,720 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:53,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464613541] [2021-05-01 06:39:53,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1464613541] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:53,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:53,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 06:39:53,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564360898] [2021-05-01 06:39:53,720 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 06:39:53,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 06:39:53,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:39:53,721 INFO L87 Difference]: Start difference. First operand 88 states and 110 transitions. Second operand has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,784 INFO L93 Difference]: Finished difference Result 162 states and 210 transitions. [2021-05-01 06:39:53,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 06:39:53,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2021-05-01 06:39:53,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,785 INFO L225 Difference]: With dead ends: 162 [2021-05-01 06:39:53,785 INFO L226 Difference]: Without dead ends: 108 [2021-05-01 06:39:53,786 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 34.9ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:39:53,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-05-01 06:39:53,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 100. [2021-05-01 06:39:53,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 94 states have (on average 1.2872340425531914) internal successors, (121), 94 states have internal predecessors, (121), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:53,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 126 transitions. [2021-05-01 06:39:53,793 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 126 transitions. Word has length 83 [2021-05-01 06:39:53,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:53,793 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 126 transitions. [2021-05-01 06:39:53,793 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,794 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 126 transitions. [2021-05-01 06:39:53,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-05-01 06:39:53,794 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:53,794 INFO L519 BasicCegarLoop]: trace histogram [16, 16, 16, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:53,794 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-05-01 06:39:53,794 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:53,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:53,795 INFO L82 PathProgramCache]: Analyzing trace with hash 346337586, now seen corresponding path program 10 times [2021-05-01 06:39:53,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:53,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1206388776] [2021-05-01 06:39:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:53,800 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:53,800 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,835 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:53,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,842 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,848 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,854 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,860 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:53,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:53,867 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:53,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:53,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:53,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:53,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:53,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:53,913 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:53,913 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1206388776] [2021-05-01 06:39:53,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1206388776] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:53,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:53,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 06:39:53,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996591138] [2021-05-01 06:39:53,914 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 06:39:53,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:53,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 06:39:53,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:39:53,914 INFO L87 Difference]: Start difference. First operand 100 states and 126 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:53,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:53,995 INFO L93 Difference]: Finished difference Result 183 states and 238 transitions. [2021-05-01 06:39:53,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 06:39:53,996 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 95 [2021-05-01 06:39:53,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:53,996 INFO L225 Difference]: With dead ends: 183 [2021-05-01 06:39:53,996 INFO L226 Difference]: Without dead ends: 120 [2021-05-01 06:39:53,997 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 64.8ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:39:53,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-05-01 06:39:54,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 112. [2021-05-01 06:39:54,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 106 states have (on average 1.2924528301886793) internal successors, (137), 106 states have internal predecessors, (137), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 142 transitions. [2021-05-01 06:39:54,009 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 142 transitions. Word has length 95 [2021-05-01 06:39:54,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:54,009 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 142 transitions. [2021-05-01 06:39:54,009 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,010 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 142 transitions. [2021-05-01 06:39:54,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-05-01 06:39:54,010 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:54,010 INFO L519 BasicCegarLoop]: trace histogram [20, 20, 20, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:54,010 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-05-01 06:39:54,010 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:54,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:54,011 INFO L82 PathProgramCache]: Analyzing trace with hash -8943530, now seen corresponding path program 11 times [2021-05-01 06:39:54,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:54,011 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749686720] [2021-05-01 06:39:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:54,018 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:54,018 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:54,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:54,079 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,084 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,090 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,097 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,103 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,110 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,118 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:54,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,149 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:54,153 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:54,153 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749686720] [2021-05-01 06:39:54,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1749686720] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:54,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:54,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-01 06:39:54,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977629588] [2021-05-01 06:39:54,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-01 06:39:54,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:54,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-01 06:39:54,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-05-01 06:39:54,154 INFO L87 Difference]: Start difference. First operand 112 states and 142 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:54,243 INFO L93 Difference]: Finished difference Result 204 states and 266 transitions. [2021-05-01 06:39:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 06:39:54,244 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 107 [2021-05-01 06:39:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:54,244 INFO L225 Difference]: With dead ends: 204 [2021-05-01 06:39:54,244 INFO L226 Difference]: Without dead ends: 132 [2021-05-01 06:39:54,245 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 50.2ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-05-01 06:39:54,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-05-01 06:39:54,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 124. [2021-05-01 06:39:54,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 118 states have (on average 1.2966101694915255) internal successors, (153), 118 states have internal predecessors, (153), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:54,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 158 transitions. [2021-05-01 06:39:54,254 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 158 transitions. Word has length 107 [2021-05-01 06:39:54,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:54,254 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 158 transitions. [2021-05-01 06:39:54,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 9 states have internal predecessors, (43), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,254 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 158 transitions. [2021-05-01 06:39:54,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-05-01 06:39:54,255 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:54,255 INFO L519 BasicCegarLoop]: trace histogram [24, 24, 24, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:54,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-05-01 06:39:54,255 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:54,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:54,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1834710606, now seen corresponding path program 12 times [2021-05-01 06:39:54,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:54,255 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960979028] [2021-05-01 06:39:54,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:54,261 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:54,262 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:54,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,329 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,330 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:54,332 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,337 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,343 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,349 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,387 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,396 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,405 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:54,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,405 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:54,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:54,424 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:54,424 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [960979028] [2021-05-01 06:39:54,424 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [960979028] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:54,424 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:54,424 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 06:39:54,424 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964262077] [2021-05-01 06:39:54,425 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 06:39:54,425 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:54,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 06:39:54,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:39:54,425 INFO L87 Difference]: Start difference. First operand 124 states and 158 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:54,506 INFO L93 Difference]: Finished difference Result 225 states and 294 transitions. [2021-05-01 06:39:54,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-01 06:39:54,507 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 119 [2021-05-01 06:39:54,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:54,507 INFO L225 Difference]: With dead ends: 225 [2021-05-01 06:39:54,508 INFO L226 Difference]: Without dead ends: 144 [2021-05-01 06:39:54,508 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 82.9ms TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:39:54,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-05-01 06:39:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 136. [2021-05-01 06:39:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 130 states have (on average 1.3) internal successors, (169), 130 states have internal predecessors, (169), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 174 transitions. [2021-05-01 06:39:54,518 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 174 transitions. Word has length 119 [2021-05-01 06:39:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:54,518 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 174 transitions. [2021-05-01 06:39:54,518 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 174 transitions. [2021-05-01 06:39:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-05-01 06:39:54,518 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:54,519 INFO L519 BasicCegarLoop]: trace histogram [28, 28, 28, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:54,519 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-05-01 06:39:54,519 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:54,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:54,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1613781718, now seen corresponding path program 13 times [2021-05-01 06:39:54,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:54,519 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1173978362] [2021-05-01 06:39:54,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:54,524 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:54,525 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:54,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,578 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,579 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:54,582 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,586 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,591 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,596 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,602 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,609 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,621 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,630 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,639 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:54,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:54,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:54,658 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:54,658 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1173978362] [2021-05-01 06:39:54,658 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1173978362] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:54,658 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:54,658 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-01 06:39:54,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032172089] [2021-05-01 06:39:54,658 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 06:39:54,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:54,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 06:39:54,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:39:54,659 INFO L87 Difference]: Start difference. First operand 136 states and 174 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:54,745 INFO L93 Difference]: Finished difference Result 246 states and 322 transitions. [2021-05-01 06:39:54,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-01 06:39:54,746 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 131 [2021-05-01 06:39:54,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:54,747 INFO L225 Difference]: With dead ends: 246 [2021-05-01 06:39:54,747 INFO L226 Difference]: Without dead ends: 156 [2021-05-01 06:39:54,747 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 66.7ms TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:39:54,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-05-01 06:39:54,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 148. [2021-05-01 06:39:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 142 states have internal predecessors, (185), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:54,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 190 transitions. [2021-05-01 06:39:54,767 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 190 transitions. Word has length 131 [2021-05-01 06:39:54,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:54,767 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 190 transitions. [2021-05-01 06:39:54,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 11 states have internal predecessors, (49), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:54,768 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 190 transitions. [2021-05-01 06:39:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-05-01 06:39:54,768 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:54,768 INFO L519 BasicCegarLoop]: trace histogram [32, 32, 32, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:54,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-05-01 06:39:54,769 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:54,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:54,769 INFO L82 PathProgramCache]: Analyzing trace with hash -2096168398, now seen corresponding path program 14 times [2021-05-01 06:39:54,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:54,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1908558541] [2021-05-01 06:39:54,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:54,775 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:54,776 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,830 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,831 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:54,834 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,838 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,844 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,849 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,857 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,864 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,872 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,884 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,893 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:54,903 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:54,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:54,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:54,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:54,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:54,923 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:54,923 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1908558541] [2021-05-01 06:39:54,923 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1908558541] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:54,923 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:54,923 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 06:39:54,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530557734] [2021-05-01 06:39:54,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 06:39:54,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:54,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 06:39:54,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:39:54,924 INFO L87 Difference]: Start difference. First operand 148 states and 190 transitions. Second operand has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:55,019 INFO L93 Difference]: Finished difference Result 267 states and 350 transitions. [2021-05-01 06:39:55,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-01 06:39:55,020 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2021-05-01 06:39:55,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:55,020 INFO L225 Difference]: With dead ends: 267 [2021-05-01 06:39:55,021 INFO L226 Difference]: Without dead ends: 168 [2021-05-01 06:39:55,021 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 78.9ms TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:39:55,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-05-01 06:39:55,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 160. [2021-05-01 06:39:55,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 154 states have (on average 1.3051948051948052) internal successors, (201), 154 states have internal predecessors, (201), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:55,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 206 transitions. [2021-05-01 06:39:55,032 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 206 transitions. Word has length 143 [2021-05-01 06:39:55,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:55,033 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 206 transitions. [2021-05-01 06:39:55,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.0) internal successors, (52), 12 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 206 transitions. [2021-05-01 06:39:55,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-05-01 06:39:55,034 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:55,034 INFO L519 BasicCegarLoop]: trace histogram [36, 36, 36, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:55,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-05-01 06:39:55,034 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:55,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:55,034 INFO L82 PathProgramCache]: Analyzing trace with hash -529199786, now seen corresponding path program 15 times [2021-05-01 06:39:55,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:55,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680847363] [2021-05-01 06:39:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:55,041 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:55,042 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:55,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,115 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:55,118 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,132 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,137 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,142 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,149 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,156 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,166 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,175 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,184 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,194 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,206 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:55,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,206 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:55,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:55,229 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:55,229 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680847363] [2021-05-01 06:39:55,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1680847363] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:55,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:55,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-01 06:39:55,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067452686] [2021-05-01 06:39:55,229 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 06:39:55,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:55,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 06:39:55,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:39:55,230 INFO L87 Difference]: Start difference. First operand 160 states and 206 transitions. Second operand has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:55,331 INFO L93 Difference]: Finished difference Result 288 states and 378 transitions. [2021-05-01 06:39:55,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-01 06:39:55,331 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 155 [2021-05-01 06:39:55,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:55,332 INFO L225 Difference]: With dead ends: 288 [2021-05-01 06:39:55,332 INFO L226 Difference]: Without dead ends: 180 [2021-05-01 06:39:55,333 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 97.2ms TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:39:55,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-05-01 06:39:55,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2021-05-01 06:39:55,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 166 states have (on average 1.3072289156626506) internal successors, (217), 166 states have internal predecessors, (217), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:55,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 222 transitions. [2021-05-01 06:39:55,346 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 222 transitions. Word has length 155 [2021-05-01 06:39:55,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:55,346 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 222 transitions. [2021-05-01 06:39:55,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,346 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 222 transitions. [2021-05-01 06:39:55,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-05-01 06:39:55,347 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:55,347 INFO L519 BasicCegarLoop]: trace histogram [40, 40, 40, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:55,347 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-05-01 06:39:55,347 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:55,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:55,348 INFO L82 PathProgramCache]: Analyzing trace with hash 517216946, now seen corresponding path program 16 times [2021-05-01 06:39:55,348 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:55,348 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1891292988] [2021-05-01 06:39:55,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:55,353 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:55,354 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,424 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:55,427 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,432 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,437 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,444 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,450 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,457 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,465 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,473 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,503 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,525 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:55,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,533 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:55,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:55,556 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:55,556 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1891292988] [2021-05-01 06:39:55,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1891292988] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:55,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:55,557 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 06:39:55,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110322810] [2021-05-01 06:39:55,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-01 06:39:55,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:55,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-01 06:39:55,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-05-01 06:39:55,558 INFO L87 Difference]: Start difference. First operand 172 states and 222 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:55,672 INFO L93 Difference]: Finished difference Result 309 states and 406 transitions. [2021-05-01 06:39:55,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 06:39:55,673 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 167 [2021-05-01 06:39:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:55,673 INFO L225 Difference]: With dead ends: 309 [2021-05-01 06:39:55,674 INFO L226 Difference]: Without dead ends: 192 [2021-05-01 06:39:55,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 106.2ms TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-05-01 06:39:55,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-05-01 06:39:55,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 184. [2021-05-01 06:39:55,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 178 states have (on average 1.3089887640449438) internal successors, (233), 178 states have internal predecessors, (233), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:55,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 238 transitions. [2021-05-01 06:39:55,689 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 238 transitions. Word has length 167 [2021-05-01 06:39:55,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:55,689 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 238 transitions. [2021-05-01 06:39:55,689 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 14 states have internal predecessors, (58), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:55,689 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 238 transitions. [2021-05-01 06:39:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-05-01 06:39:55,690 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:55,690 INFO L519 BasicCegarLoop]: trace histogram [44, 44, 44, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:55,690 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-05-01 06:39:55,690 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:55,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:55,691 INFO L82 PathProgramCache]: Analyzing trace with hash -2120900650, now seen corresponding path program 17 times [2021-05-01 06:39:55,691 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:55,691 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [185493978] [2021-05-01 06:39:55,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:55,696 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:55,697 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,779 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,780 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:55,782 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,786 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,791 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,796 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,803 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,809 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,816 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,824 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,833 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,842 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,852 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,862 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:55,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:55,873 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:55,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:55,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:55,892 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:55,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:55,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:55,892 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:55,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [185493978] [2021-05-01 06:39:55,893 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [185493978] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:55,893 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:55,893 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 06:39:55,893 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779659080] [2021-05-01 06:39:55,893 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 06:39:55,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:55,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 06:39:55,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:39:55,894 INFO L87 Difference]: Start difference. First operand 184 states and 238 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:56,040 INFO L93 Difference]: Finished difference Result 330 states and 434 transitions. [2021-05-01 06:39:56,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 06:39:56,040 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 179 [2021-05-01 06:39:56,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:56,041 INFO L225 Difference]: With dead ends: 330 [2021-05-01 06:39:56,041 INFO L226 Difference]: Without dead ends: 204 [2021-05-01 06:39:56,042 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 97.8ms TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:39:56,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-05-01 06:39:56,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 196. [2021-05-01 06:39:56,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 190 states have (on average 1.3105263157894738) internal successors, (249), 190 states have internal predecessors, (249), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:56,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 254 transitions. [2021-05-01 06:39:56,057 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 254 transitions. Word has length 179 [2021-05-01 06:39:56,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:56,057 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 254 transitions. [2021-05-01 06:39:56,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 15 states have internal predecessors, (61), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,057 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 254 transitions. [2021-05-01 06:39:56,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-05-01 06:39:56,058 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:56,059 INFO L519 BasicCegarLoop]: trace histogram [48, 48, 48, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:56,059 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-05-01 06:39:56,059 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:56,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1289999154, now seen corresponding path program 18 times [2021-05-01 06:39:56,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:56,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796520297] [2021-05-01 06:39:56,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:56,065 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:56,066 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:56,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,163 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:56,166 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,171 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,177 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,182 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,188 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,195 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,202 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,210 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,219 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,228 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,240 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,250 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,266 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,278 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:56,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:56,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:56,296 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:56,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796520297] [2021-05-01 06:39:56,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [796520297] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:56,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:56,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 06:39:56,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081830199] [2021-05-01 06:39:56,298 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 06:39:56,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:56,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 06:39:56,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:39:56,298 INFO L87 Difference]: Start difference. First operand 196 states and 254 transitions. Second operand has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:56,408 INFO L93 Difference]: Finished difference Result 351 states and 462 transitions. [2021-05-01 06:39:56,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-01 06:39:56,408 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 191 [2021-05-01 06:39:56,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:56,409 INFO L225 Difference]: With dead ends: 351 [2021-05-01 06:39:56,409 INFO L226 Difference]: Without dead ends: 216 [2021-05-01 06:39:56,410 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 113.1ms TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:39:56,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-05-01 06:39:56,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2021-05-01 06:39:56,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 202 states have (on average 1.311881188118812) internal successors, (265), 202 states have internal predecessors, (265), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:56,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 270 transitions. [2021-05-01 06:39:56,442 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 270 transitions. Word has length 191 [2021-05-01 06:39:56,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:56,442 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 270 transitions. [2021-05-01 06:39:56,442 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.764705882352941) internal successors, (64), 16 states have internal predecessors, (64), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,442 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 270 transitions. [2021-05-01 06:39:56,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-05-01 06:39:56,443 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:56,444 INFO L519 BasicCegarLoop]: trace histogram [52, 52, 52, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:56,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-05-01 06:39:56,444 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:56,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:56,444 INFO L82 PathProgramCache]: Analyzing trace with hash 920785494, now seen corresponding path program 19 times [2021-05-01 06:39:56,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:56,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [738587652] [2021-05-01 06:39:56,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:56,449 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:56,450 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:56,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:56,538 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,542 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,547 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,552 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,558 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,564 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,588 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,589 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,597 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,607 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,618 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,629 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,641 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,653 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:56,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,654 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:56,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:56,673 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:56,673 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [738587652] [2021-05-01 06:39:56,673 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [738587652] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:56,673 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:56,673 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-01 06:39:56,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76993087] [2021-05-01 06:39:56,673 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-01 06:39:56,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:56,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-01 06:39:56,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:39:56,674 INFO L87 Difference]: Start difference. First operand 208 states and 270 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:56,789 INFO L93 Difference]: Finished difference Result 372 states and 490 transitions. [2021-05-01 06:39:56,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:39:56,789 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2021-05-01 06:39:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:56,790 INFO L225 Difference]: With dead ends: 372 [2021-05-01 06:39:56,790 INFO L226 Difference]: Without dead ends: 228 [2021-05-01 06:39:56,790 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 119.7ms TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:39:56,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-05-01 06:39:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 220. [2021-05-01 06:39:56,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 214 states have (on average 1.3130841121495327) internal successors, (281), 214 states have internal predecessors, (281), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 286 transitions. [2021-05-01 06:39:56,806 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 286 transitions. Word has length 203 [2021-05-01 06:39:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:56,806 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 286 transitions. [2021-05-01 06:39:56,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 17 states have internal predecessors, (67), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:56,807 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 286 transitions. [2021-05-01 06:39:56,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-05-01 06:39:56,808 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:56,808 INFO L519 BasicCegarLoop]: trace histogram [56, 56, 56, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:56,808 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-05-01 06:39:56,808 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:56,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:56,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1574032462, now seen corresponding path program 20 times [2021-05-01 06:39:56,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:56,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1991950960] [2021-05-01 06:39:56,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:56,813 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:56,814 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:56,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:56,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:56,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:56,920 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,924 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,929 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,934 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,940 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,950 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,957 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,980 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:56,990 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:56,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,001 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,012 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,024 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,037 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,053 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,069 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,085 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:57,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:57,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:57,112 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:57,112 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1991950960] [2021-05-01 06:39:57,112 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1991950960] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:57,112 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:57,112 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-01 06:39:57,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739137814] [2021-05-01 06:39:57,122 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-01 06:39:57,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:57,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-01 06:39:57,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2021-05-01 06:39:57,123 INFO L87 Difference]: Start difference. First operand 220 states and 286 transitions. Second operand has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:57,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:57,257 INFO L93 Difference]: Finished difference Result 393 states and 518 transitions. [2021-05-01 06:39:57,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 06:39:57,257 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 215 [2021-05-01 06:39:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:57,258 INFO L225 Difference]: With dead ends: 393 [2021-05-01 06:39:57,258 INFO L226 Difference]: Without dead ends: 240 [2021-05-01 06:39:57,259 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 168.2ms TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2021-05-01 06:39:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2021-05-01 06:39:57,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 232. [2021-05-01 06:39:57,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 226 states have (on average 1.3141592920353982) internal successors, (297), 226 states have internal predecessors, (297), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:57,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 302 transitions. [2021-05-01 06:39:57,275 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 302 transitions. Word has length 215 [2021-05-01 06:39:57,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:57,275 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 302 transitions. [2021-05-01 06:39:57,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.6842105263157894) internal successors, (70), 18 states have internal predecessors, (70), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:57,275 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 302 transitions. [2021-05-01 06:39:57,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-05-01 06:39:57,277 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:57,277 INFO L519 BasicCegarLoop]: trace histogram [60, 60, 60, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:57,277 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-05-01 06:39:57,277 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:57,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:57,277 INFO L82 PathProgramCache]: Analyzing trace with hash -441817898, now seen corresponding path program 21 times [2021-05-01 06:39:57,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:57,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1272842118] [2021-05-01 06:39:57,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:57,283 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:57,283 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:57,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,392 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:57,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,399 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,404 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,410 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,417 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,424 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,432 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,440 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,449 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,460 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,472 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,504 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,517 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,531 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,545 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,562 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:57,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,562 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:57,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:57,584 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:57,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1272842118] [2021-05-01 06:39:57,584 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1272842118] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:57,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:57,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-01 06:39:57,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560799540] [2021-05-01 06:39:57,585 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-01 06:39:57,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:57,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-01 06:39:57,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:39:57,585 INFO L87 Difference]: Start difference. First operand 232 states and 302 transitions. Second operand has 20 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:57,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:57,724 INFO L93 Difference]: Finished difference Result 414 states and 546 transitions. [2021-05-01 06:39:57,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-01 06:39:57,724 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 227 [2021-05-01 06:39:57,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:57,725 INFO L225 Difference]: With dead ends: 414 [2021-05-01 06:39:57,725 INFO L226 Difference]: Without dead ends: 252 [2021-05-01 06:39:57,726 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 169.0ms TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:39:57,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-05-01 06:39:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 244. [2021-05-01 06:39:57,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 238 states have (on average 1.315126050420168) internal successors, (313), 238 states have internal predecessors, (313), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:57,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 318 transitions. [2021-05-01 06:39:57,744 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 318 transitions. Word has length 227 [2021-05-01 06:39:57,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:57,744 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 318 transitions. [2021-05-01 06:39:57,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.65) internal successors, (73), 19 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:57,744 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 318 transitions. [2021-05-01 06:39:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-05-01 06:39:57,745 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:57,745 INFO L519 BasicCegarLoop]: trace histogram [64, 64, 64, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:57,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-05-01 06:39:57,745 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:57,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:57,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1638081586, now seen corresponding path program 22 times [2021-05-01 06:39:57,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:57,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833084664] [2021-05-01 06:39:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:57,751 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:57,752 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:57,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:57,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:57,855 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:57,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:57,857 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,861 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,866 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,871 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,876 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,883 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,890 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,898 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,906 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,916 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,927 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,937 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,949 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,962 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,974 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:57,987 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:57,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,002 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,018 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:58,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,019 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:58,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:58,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:58,041 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:58,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833084664] [2021-05-01 06:39:58,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [833084664] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:58,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:58,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-01 06:39:58,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219297459] [2021-05-01 06:39:58,041 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-01 06:39:58,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:58,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-01 06:39:58,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2021-05-01 06:39:58,042 INFO L87 Difference]: Start difference. First operand 244 states and 318 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:58,205 INFO L93 Difference]: Finished difference Result 435 states and 574 transitions. [2021-05-01 06:39:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-01 06:39:58,205 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 239 [2021-05-01 06:39:58,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:58,206 INFO L225 Difference]: With dead ends: 435 [2021-05-01 06:39:58,206 INFO L226 Difference]: Without dead ends: 264 [2021-05-01 06:39:58,207 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 164.9ms TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2021-05-01 06:39:58,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2021-05-01 06:39:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 256. [2021-05-01 06:39:58,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 250 states have (on average 1.316) internal successors, (329), 250 states have internal predecessors, (329), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:58,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 334 transitions. [2021-05-01 06:39:58,225 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 334 transitions. Word has length 239 [2021-05-01 06:39:58,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:58,225 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 334 transitions. [2021-05-01 06:39:58,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 20 states have internal predecessors, (76), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:58,225 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 334 transitions. [2021-05-01 06:39:58,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-05-01 06:39:58,226 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:58,226 INFO L519 BasicCegarLoop]: trace histogram [68, 68, 68, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:58,226 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-05-01 06:39:58,226 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:58,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:58,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1698600790, now seen corresponding path program 23 times [2021-05-01 06:39:58,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:58,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568077431] [2021-05-01 06:39:58,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:58,232 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:58,233 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:58,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:58,341 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,345 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,350 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,362 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,368 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,376 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,384 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,393 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,403 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,414 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,426 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,438 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,450 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,463 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,479 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,495 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,510 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,527 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,527 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:58,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:58,559 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:58,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568077431] [2021-05-01 06:39:58,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [568077431] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:58,559 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:58,559 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-01 06:39:58,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139741501] [2021-05-01 06:39:58,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-01 06:39:58,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:58,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-01 06:39:58,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2021-05-01 06:39:58,560 INFO L87 Difference]: Start difference. First operand 256 states and 334 transitions. Second operand has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:58,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:58,711 INFO L93 Difference]: Finished difference Result 456 states and 602 transitions. [2021-05-01 06:39:58,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-01 06:39:58,712 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 251 [2021-05-01 06:39:58,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:58,712 INFO L225 Difference]: With dead ends: 456 [2021-05-01 06:39:58,713 INFO L226 Difference]: Without dead ends: 276 [2021-05-01 06:39:58,713 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 191.6ms TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2021-05-01 06:39:58,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-05-01 06:39:58,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 268. [2021-05-01 06:39:58,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 262 states have (on average 1.316793893129771) internal successors, (345), 262 states have internal predecessors, (345), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:58,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 350 transitions. [2021-05-01 06:39:58,733 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 350 transitions. Word has length 251 [2021-05-01 06:39:58,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:58,733 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 350 transitions. [2021-05-01 06:39:58,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.590909090909091) internal successors, (79), 21 states have internal predecessors, (79), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 350 transitions. [2021-05-01 06:39:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-05-01 06:39:58,734 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:58,734 INFO L519 BasicCegarLoop]: trace histogram [72, 72, 72, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:58,734 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-05-01 06:39:58,734 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:58,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:58,735 INFO L82 PathProgramCache]: Analyzing trace with hash 2083699890, now seen corresponding path program 24 times [2021-05-01 06:39:58,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:58,735 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061010685] [2021-05-01 06:39:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:58,746 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:58,748 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:58,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:58,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:58,874 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:58,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:58,876 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,880 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,885 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,890 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,897 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,903 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,911 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,919 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,928 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,938 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,948 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,958 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,969 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,970 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:58,981 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:58,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,003 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,017 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,031 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,061 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,078 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:59,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:59,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:59,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:59,100 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:59,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061010685] [2021-05-01 06:39:59,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [2061010685] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:59,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:59,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-01 06:39:59,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648639515] [2021-05-01 06:39:59,101 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-01 06:39:59,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:59,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-01 06:39:59,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2021-05-01 06:39:59,101 INFO L87 Difference]: Start difference. First operand 268 states and 350 transitions. Second operand has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:59,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:59,269 INFO L93 Difference]: Finished difference Result 477 states and 630 transitions. [2021-05-01 06:39:59,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-01 06:39:59,269 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 263 [2021-05-01 06:39:59,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:59,270 INFO L225 Difference]: With dead ends: 477 [2021-05-01 06:39:59,270 INFO L226 Difference]: Without dead ends: 288 [2021-05-01 06:39:59,271 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 206.2ms TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2021-05-01 06:39:59,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-05-01 06:39:59,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 280. [2021-05-01 06:39:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 274 states have (on average 1.3175182481751824) internal successors, (361), 274 states have internal predecessors, (361), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:59,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 366 transitions. [2021-05-01 06:39:59,294 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 366 transitions. Word has length 263 [2021-05-01 06:39:59,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:59,294 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 366 transitions. [2021-05-01 06:39:59,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.5652173913043477) internal successors, (82), 22 states have internal predecessors, (82), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:59,294 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 366 transitions. [2021-05-01 06:39:59,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-05-01 06:39:59,295 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:59,295 INFO L519 BasicCegarLoop]: trace histogram [76, 76, 76, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:59,295 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-05-01 06:39:59,295 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:59,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:59,295 INFO L82 PathProgramCache]: Analyzing trace with hash 2129570262, now seen corresponding path program 25 times [2021-05-01 06:39:59,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:59,296 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261000909] [2021-05-01 06:39:59,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:59,301 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:59,302 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:59,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:59,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,431 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:39:59,433 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,434 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,438 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,443 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,449 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,456 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,464 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,473 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,482 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,503 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,527 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,540 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,554 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,569 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,585 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,601 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,618 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,635 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,654 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:39:59,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:39:59,673 INFO L142 QuantifierPusher]: treesize reduction 8, result has 11.1 percent of original size [2021-05-01 06:39:59,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:39:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:39:59,695 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:39:59,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:39:59,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:39:59,696 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:39:59,696 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261000909] [2021-05-01 06:39:59,696 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1261000909] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:39:59,696 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:39:59,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 06:39:59,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780820126] [2021-05-01 06:39:59,697 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 06:39:59,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:39:59,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 06:39:59,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:39:59,698 INFO L87 Difference]: Start difference. First operand 280 states and 366 transitions. Second operand has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:59,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:39:59,870 INFO L93 Difference]: Finished difference Result 490 states and 646 transitions. [2021-05-01 06:39:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-01 06:39:59,870 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 275 [2021-05-01 06:39:59,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:39:59,871 INFO L225 Difference]: With dead ends: 490 [2021-05-01 06:39:59,871 INFO L226 Difference]: Without dead ends: 292 [2021-05-01 06:39:59,872 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 242.9ms TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:39:59,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-05-01 06:39:59,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2021-05-01 06:39:59,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 286 states have (on average 1.3181818181818181) internal successors, (377), 286 states have internal predecessors, (377), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:39:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 382 transitions. [2021-05-01 06:39:59,897 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 382 transitions. Word has length 275 [2021-05-01 06:39:59,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:39:59,897 INFO L480 AbstractCegarLoop]: Abstraction has 292 states and 382 transitions. [2021-05-01 06:39:59,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:39:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 382 transitions. [2021-05-01 06:39:59,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-05-01 06:39:59,899 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:39:59,899 INFO L519 BasicCegarLoop]: trace histogram [80, 80, 80, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:39:59,899 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-05-01 06:39:59,899 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:39:59,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:39:59,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1865616078, now seen corresponding path program 26 times [2021-05-01 06:39:59,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:39:59,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667992337] [2021-05-01 06:39:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:39:59,905 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:39:59,906 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:39:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:40:00,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,052 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,062 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,067 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:00,085 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:00,085 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667992337] [2021-05-01 06:40:00,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [667992337] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:00,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:00,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 06:40:00,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714614407] [2021-05-01 06:40:00,086 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 06:40:00,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:00,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 06:40:00,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:40:00,086 INFO L87 Difference]: Start difference. First operand 292 states and 382 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:00,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:00,260 INFO L93 Difference]: Finished difference Result 421 states and 545 transitions. [2021-05-01 06:40:00,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 06:40:00,261 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 287 [2021-05-01 06:40:00,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:00,262 INFO L225 Difference]: With dead ends: 421 [2021-05-01 06:40:00,262 INFO L226 Difference]: Without dead ends: 405 [2021-05-01 06:40:00,263 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:40:00,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-05-01 06:40:00,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 355. [2021-05-01 06:40:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 349 states have (on average 1.320916905444126) internal successors, (461), 349 states have internal predecessors, (461), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 466 transitions. [2021-05-01 06:40:00,301 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 466 transitions. Word has length 287 [2021-05-01 06:40:00,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:00,302 INFO L480 AbstractCegarLoop]: Abstraction has 355 states and 466 transitions. [2021-05-01 06:40:00,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:00,302 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 466 transitions. [2021-05-01 06:40:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-05-01 06:40:00,304 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:00,304 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:00,304 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-05-01 06:40:00,304 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:00,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:00,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1824488221, now seen corresponding path program 27 times [2021-05-01 06:40:00,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:00,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178392116] [2021-05-01 06:40:00,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:00,310 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:00,311 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:00,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,484 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,485 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,487 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:00,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,492 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:00,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:00,516 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:00,516 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178392116] [2021-05-01 06:40:00,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1178392116] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:00,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:00,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-05-01 06:40:00,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184940893] [2021-05-01 06:40:00,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-01 06:40:00,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:00,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-01 06:40:00,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:40:00,517 INFO L87 Difference]: Start difference. First operand 355 states and 466 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:00,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:00,623 INFO L93 Difference]: Finished difference Result 380 states and 494 transitions. [2021-05-01 06:40:00,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-01 06:40:00,623 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 350 [2021-05-01 06:40:00,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:00,625 INFO L225 Difference]: With dead ends: 380 [2021-05-01 06:40:00,625 INFO L226 Difference]: Without dead ends: 369 [2021-05-01 06:40:00,625 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-05-01 06:40:00,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2021-05-01 06:40:00,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 358. [2021-05-01 06:40:00,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 352 states have (on average 1.3181818181818181) internal successors, (464), 352 states have internal predecessors, (464), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:00,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 469 transitions. [2021-05-01 06:40:00,654 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 469 transitions. Word has length 350 [2021-05-01 06:40:00,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:00,655 INFO L480 AbstractCegarLoop]: Abstraction has 358 states and 469 transitions. [2021-05-01 06:40:00,655 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:00,655 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 469 transitions. [2021-05-01 06:40:00,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-05-01 06:40:00,657 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:00,657 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:00,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-05-01 06:40:00,657 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:00,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1130438452, now seen corresponding path program 28 times [2021-05-01 06:40:00,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:00,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47004325] [2021-05-01 06:40:00,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:00,663 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:00,664 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,833 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:00,836 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:00,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,840 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:00,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,845 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:00,845 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:00,850 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:00,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:00,868 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:00,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:00,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:00,869 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:00,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47004325] [2021-05-01 06:40:00,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [47004325] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:00,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:00,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-05-01 06:40:00,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779588605] [2021-05-01 06:40:00,870 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-01 06:40:00,870 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:00,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-01 06:40:00,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:40:00,870 INFO L87 Difference]: Start difference. First operand 358 states and 469 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:00,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:00,989 INFO L93 Difference]: Finished difference Result 391 states and 507 transitions. [2021-05-01 06:40:00,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-01 06:40:00,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 353 [2021-05-01 06:40:00,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:00,991 INFO L225 Difference]: With dead ends: 391 [2021-05-01 06:40:00,991 INFO L226 Difference]: Without dead ends: 380 [2021-05-01 06:40:00,991 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 29.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-05-01 06:40:00,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-05-01 06:40:01,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 361. [2021-05-01 06:40:01,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 355 states have (on average 1.315492957746479) internal successors, (467), 355 states have internal predecessors, (467), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:01,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 472 transitions. [2021-05-01 06:40:01,032 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 472 transitions. Word has length 353 [2021-05-01 06:40:01,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:01,033 INFO L480 AbstractCegarLoop]: Abstraction has 361 states and 472 transitions. [2021-05-01 06:40:01,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:01,033 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 472 transitions. [2021-05-01 06:40:01,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-05-01 06:40:01,034 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:01,034 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:01,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-05-01 06:40:01,034 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:01,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:01,035 INFO L82 PathProgramCache]: Analyzing trace with hash 666333117, now seen corresponding path program 29 times [2021-05-01 06:40:01,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:01,035 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1686866526] [2021-05-01 06:40:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:01,040 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:01,041 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:01,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:01,208 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,212 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,217 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,222 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,228 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:01,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:01,252 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:01,252 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1686866526] [2021-05-01 06:40:01,252 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1686866526] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:01,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:01,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-05-01 06:40:01,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733003196] [2021-05-01 06:40:01,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-05-01 06:40:01,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:01,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-05-01 06:40:01,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:40:01,254 INFO L87 Difference]: Start difference. First operand 361 states and 472 transitions. Second operand has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:01,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:01,386 INFO L93 Difference]: Finished difference Result 405 states and 524 transitions. [2021-05-01 06:40:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-01 06:40:01,387 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 356 [2021-05-01 06:40:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:01,388 INFO L225 Difference]: With dead ends: 405 [2021-05-01 06:40:01,388 INFO L226 Difference]: Without dead ends: 394 [2021-05-01 06:40:01,388 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 35.0ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-05-01 06:40:01,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-05-01 06:40:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 364. [2021-05-01 06:40:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 358 states have (on average 1.312849162011173) internal successors, (470), 358 states have internal predecessors, (470), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:01,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 475 transitions. [2021-05-01 06:40:01,419 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 475 transitions. Word has length 356 [2021-05-01 06:40:01,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:01,419 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 475 transitions. [2021-05-01 06:40:01,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 7 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:01,419 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 475 transitions. [2021-05-01 06:40:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-05-01 06:40:01,420 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:01,420 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:01,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-05-01 06:40:01,421 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:01,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:01,421 INFO L82 PathProgramCache]: Analyzing trace with hash 4023956, now seen corresponding path program 30 times [2021-05-01 06:40:01,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:01,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522240558] [2021-05-01 06:40:01,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:01,426 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:01,427 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:01,589 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:01,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,599 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,604 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,611 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,617 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:01,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:01,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:01,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:01,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:01,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:01,648 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:01,648 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522240558] [2021-05-01 06:40:01,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1522240558] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:01,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:01,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-05-01 06:40:01,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084571583] [2021-05-01 06:40:01,649 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-01 06:40:01,649 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:01,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-01 06:40:01,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:40:01,650 INFO L87 Difference]: Start difference. First operand 364 states and 475 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:01,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:01,815 INFO L93 Difference]: Finished difference Result 484 states and 628 transitions. [2021-05-01 06:40:01,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-01 06:40:01,816 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 359 [2021-05-01 06:40:01,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:01,817 INFO L225 Difference]: With dead ends: 484 [2021-05-01 06:40:01,817 INFO L226 Difference]: Without dead ends: 473 [2021-05-01 06:40:01,818 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 47.2ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-05-01 06:40:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-05-01 06:40:01,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 367. [2021-05-01 06:40:01,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 367 states, 361 states have (on average 1.3102493074792243) internal successors, (473), 361 states have internal predecessors, (473), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:01,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 478 transitions. [2021-05-01 06:40:01,853 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 478 transitions. Word has length 359 [2021-05-01 06:40:01,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:01,854 INFO L480 AbstractCegarLoop]: Abstraction has 367 states and 478 transitions. [2021-05-01 06:40:01,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:01,854 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 478 transitions. [2021-05-01 06:40:01,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2021-05-01 06:40:01,855 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:01,855 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:01,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-05-01 06:40:01,856 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:01,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:01,856 INFO L82 PathProgramCache]: Analyzing trace with hash 231566429, now seen corresponding path program 31 times [2021-05-01 06:40:01,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:01,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388654822] [2021-05-01 06:40:01,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:01,872 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:01,873 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:02,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:02,040 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,044 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,049 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,055 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,061 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,068 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:02,093 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:02,103 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:02,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388654822] [2021-05-01 06:40:02,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [388654822] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:02,103 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:02,103 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-05-01 06:40:02,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556932065] [2021-05-01 06:40:02,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-05-01 06:40:02,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:02,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-05-01 06:40:02,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-05-01 06:40:02,105 INFO L87 Difference]: Start difference. First operand 367 states and 478 transitions. Second operand has 10 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:02,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:02,303 INFO L93 Difference]: Finished difference Result 567 states and 738 transitions. [2021-05-01 06:40:02,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-01 06:40:02,304 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 362 [2021-05-01 06:40:02,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:02,305 INFO L225 Difference]: With dead ends: 567 [2021-05-01 06:40:02,305 INFO L226 Difference]: Without dead ends: 556 [2021-05-01 06:40:02,306 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 48.9ms TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2021-05-01 06:40:02,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2021-05-01 06:40:02,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 370. [2021-05-01 06:40:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 364 states have (on average 1.3076923076923077) internal successors, (476), 364 states have internal predecessors, (476), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:02,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 481 transitions. [2021-05-01 06:40:02,339 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 481 transitions. Word has length 362 [2021-05-01 06:40:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:02,340 INFO L480 AbstractCegarLoop]: Abstraction has 370 states and 481 transitions. [2021-05-01 06:40:02,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.8) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 481 transitions. [2021-05-01 06:40:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-05-01 06:40:02,341 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:02,342 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 6, 6, 6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:02,342 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-05-01 06:40:02,342 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:02,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:02,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1490986484, now seen corresponding path program 32 times [2021-05-01 06:40:02,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:02,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [10918072] [2021-05-01 06:40:02,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:02,348 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:02,348 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:02,511 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:02,514 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,518 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,523 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,528 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,534 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,540 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,547 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:02,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:02,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:02,577 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:02,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:02,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:02,578 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:02,578 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [10918072] [2021-05-01 06:40:02,579 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [10918072] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:02,579 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:02,579 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-05-01 06:40:02,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219580352] [2021-05-01 06:40:02,579 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-01 06:40:02,579 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:02,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-01 06:40:02,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:40:02,579 INFO L87 Difference]: Start difference. First operand 370 states and 481 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:02,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:02,834 INFO L93 Difference]: Finished difference Result 650 states and 848 transitions. [2021-05-01 06:40:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-01 06:40:02,835 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 365 [2021-05-01 06:40:02,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:02,837 INFO L225 Difference]: With dead ends: 650 [2021-05-01 06:40:02,837 INFO L226 Difference]: Without dead ends: 639 [2021-05-01 06:40:02,837 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 53.7ms TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2021-05-01 06:40:02,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2021-05-01 06:40:02,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 373. [2021-05-01 06:40:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 367 states have (on average 1.3051771117166213) internal successors, (479), 367 states have internal predecessors, (479), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 484 transitions. [2021-05-01 06:40:02,872 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 484 transitions. Word has length 365 [2021-05-01 06:40:02,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:02,873 INFO L480 AbstractCegarLoop]: Abstraction has 373 states and 484 transitions. [2021-05-01 06:40:02,873 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 10 states have internal predecessors, (41), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:02,873 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 484 transitions. [2021-05-01 06:40:02,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2021-05-01 06:40:02,874 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:02,874 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 7, 7, 7, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:02,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-05-01 06:40:02,874 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:02,875 INFO L82 PathProgramCache]: Analyzing trace with hash 39547133, now seen corresponding path program 33 times [2021-05-01 06:40:02,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:02,875 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94371827] [2021-05-01 06:40:02,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:02,880 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:02,884 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:03,038 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:03,041 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,045 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,050 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,057 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,063 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,070 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,078 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:03,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:03,115 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:03,115 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94371827] [2021-05-01 06:40:03,115 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [94371827] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:03,115 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:03,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-05-01 06:40:03,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598064765] [2021-05-01 06:40:03,116 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-01 06:40:03,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-01 06:40:03,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:40:03,116 INFO L87 Difference]: Start difference. First operand 373 states and 484 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:03,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:03,410 INFO L93 Difference]: Finished difference Result 733 states and 958 transitions. [2021-05-01 06:40:03,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-01 06:40:03,411 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 368 [2021-05-01 06:40:03,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:03,414 INFO L225 Difference]: With dead ends: 733 [2021-05-01 06:40:03,414 INFO L226 Difference]: Without dead ends: 722 [2021-05-01 06:40:03,414 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 66.8ms TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2021-05-01 06:40:03,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2021-05-01 06:40:03,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 376. [2021-05-01 06:40:03,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 370 states have (on average 1.3027027027027027) internal successors, (482), 370 states have internal predecessors, (482), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:03,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 487 transitions. [2021-05-01 06:40:03,455 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 487 transitions. Word has length 368 [2021-05-01 06:40:03,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:03,455 INFO L480 AbstractCegarLoop]: Abstraction has 376 states and 487 transitions. [2021-05-01 06:40:03,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 11 states have internal predecessors, (44), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:03,455 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 487 transitions. [2021-05-01 06:40:03,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2021-05-01 06:40:03,456 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:03,457 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 8, 8, 8, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:03,457 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-05-01 06:40:03,457 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:03,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:03,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1940577620, now seen corresponding path program 34 times [2021-05-01 06:40:03,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:03,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [465960573] [2021-05-01 06:40:03,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:03,463 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:03,464 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:03,645 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:03,648 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,653 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,658 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,663 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,669 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,676 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,684 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,693 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,702 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:03,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:03,711 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:03,729 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:03,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:03,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:03,731 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:03,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [465960573] [2021-05-01 06:40:03,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [465960573] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:03,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:03,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-05-01 06:40:03,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370628213] [2021-05-01 06:40:03,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-01 06:40:03,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:03,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-01 06:40:03,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:40:03,732 INFO L87 Difference]: Start difference. First operand 376 states and 487 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:04,068 INFO L93 Difference]: Finished difference Result 816 states and 1068 transitions. [2021-05-01 06:40:04,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-01 06:40:04,069 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 371 [2021-05-01 06:40:04,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:04,071 INFO L225 Difference]: With dead ends: 816 [2021-05-01 06:40:04,071 INFO L226 Difference]: Without dead ends: 805 [2021-05-01 06:40:04,072 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 74.9ms TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2021-05-01 06:40:04,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 805 states. [2021-05-01 06:40:04,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 805 to 379. [2021-05-01 06:40:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 373 states have (on average 1.3002680965147453) internal successors, (485), 373 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:04,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 490 transitions. [2021-05-01 06:40:04,122 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 490 transitions. Word has length 371 [2021-05-01 06:40:04,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:04,122 INFO L480 AbstractCegarLoop]: Abstraction has 379 states and 490 transitions. [2021-05-01 06:40:04,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 12 states have internal predecessors, (47), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:04,122 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 490 transitions. [2021-05-01 06:40:04,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-05-01 06:40:04,124 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:04,124 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 9, 9, 9, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:04,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-05-01 06:40:04,124 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:04,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:04,125 INFO L82 PathProgramCache]: Analyzing trace with hash 2101050781, now seen corresponding path program 35 times [2021-05-01 06:40:04,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:04,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1431502933] [2021-05-01 06:40:04,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:04,130 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:04,131 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:04,286 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:04,289 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,293 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,298 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,303 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,309 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,316 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,327 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,336 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,345 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,355 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,367 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:04,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:04,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:04,386 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:04,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1431502933] [2021-05-01 06:40:04,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1431502933] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:04,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:04,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-05-01 06:40:04,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206017628] [2021-05-01 06:40:04,387 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-05-01 06:40:04,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:04,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-05-01 06:40:04,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:40:04,387 INFO L87 Difference]: Start difference. First operand 379 states and 490 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:04,778 INFO L93 Difference]: Finished difference Result 899 states and 1178 transitions. [2021-05-01 06:40:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-01 06:40:04,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 374 [2021-05-01 06:40:04,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:04,780 INFO L225 Difference]: With dead ends: 899 [2021-05-01 06:40:04,780 INFO L226 Difference]: Without dead ends: 888 [2021-05-01 06:40:04,781 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 86.7ms TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2021-05-01 06:40:04,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2021-05-01 06:40:04,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 382. [2021-05-01 06:40:04,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 376 states have (on average 1.297872340425532) internal successors, (488), 376 states have internal predecessors, (488), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:04,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 493 transitions. [2021-05-01 06:40:04,822 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 493 transitions. Word has length 374 [2021-05-01 06:40:04,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:04,822 INFO L480 AbstractCegarLoop]: Abstraction has 382 states and 493 transitions. [2021-05-01 06:40:04,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:04,822 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 493 transitions. [2021-05-01 06:40:04,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-05-01 06:40:04,823 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:04,823 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 10, 10, 10, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:04,824 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-05-01 06:40:04,824 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:04,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:04,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1836577612, now seen corresponding path program 36 times [2021-05-01 06:40:04,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:04,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1102649524] [2021-05-01 06:40:04,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:04,831 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:04,833 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:04,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:04,989 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:04,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:04,991 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,995 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:04,999 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:04,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,007 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,012 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,019 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,026 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,033 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,042 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,050 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,060 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,070 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:05,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:05,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:05,087 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:05,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:05,088 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:05,088 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1102649524] [2021-05-01 06:40:05,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1102649524] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:05,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:05,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-05-01 06:40:05,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332187324] [2021-05-01 06:40:05,088 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-01 06:40:05,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:05,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-01 06:40:05,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-05-01 06:40:05,089 INFO L87 Difference]: Start difference. First operand 382 states and 493 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:05,501 INFO L93 Difference]: Finished difference Result 982 states and 1288 transitions. [2021-05-01 06:40:05,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-05-01 06:40:05,501 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 377 [2021-05-01 06:40:05,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:05,503 INFO L225 Difference]: With dead ends: 982 [2021-05-01 06:40:05,503 INFO L226 Difference]: Without dead ends: 971 [2021-05-01 06:40:05,504 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 88.4ms TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2021-05-01 06:40:05,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2021-05-01 06:40:05,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 385. [2021-05-01 06:40:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 379 states have (on average 1.2955145118733509) internal successors, (491), 379 states have internal predecessors, (491), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 496 transitions. [2021-05-01 06:40:05,545 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 496 transitions. Word has length 377 [2021-05-01 06:40:05,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:05,545 INFO L480 AbstractCegarLoop]: Abstraction has 385 states and 496 transitions. [2021-05-01 06:40:05,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 states have internal predecessors, (53), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 496 transitions. [2021-05-01 06:40:05,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-05-01 06:40:05,546 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:05,546 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 11, 11, 11, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:05,547 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-05-01 06:40:05,547 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:05,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:05,547 INFO L82 PathProgramCache]: Analyzing trace with hash 717722173, now seen corresponding path program 37 times [2021-05-01 06:40:05,547 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:05,547 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [825221669] [2021-05-01 06:40:05,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:05,552 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:05,553 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:05,705 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:05,706 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:05,708 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,712 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,717 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,723 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,729 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,736 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,744 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,752 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,768 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,777 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,788 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,799 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:05,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:05,811 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:05,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:05,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:05,829 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:05,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:05,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:05,830 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:05,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [825221669] [2021-05-01 06:40:05,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [825221669] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:05,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:05,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-05-01 06:40:05,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188728137] [2021-05-01 06:40:05,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-05-01 06:40:05,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:05,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-05-01 06:40:05,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:40:05,831 INFO L87 Difference]: Start difference. First operand 385 states and 496 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:06,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:06,286 INFO L93 Difference]: Finished difference Result 1065 states and 1398 transitions. [2021-05-01 06:40:06,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-01 06:40:06,286 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 380 [2021-05-01 06:40:06,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:06,289 INFO L225 Difference]: With dead ends: 1065 [2021-05-01 06:40:06,289 INFO L226 Difference]: Without dead ends: 1054 [2021-05-01 06:40:06,289 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 110.7ms TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2021-05-01 06:40:06,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1054 states. [2021-05-01 06:40:06,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1054 to 388. [2021-05-01 06:40:06,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 382 states have (on average 1.293193717277487) internal successors, (494), 382 states have internal predecessors, (494), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:06,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 499 transitions. [2021-05-01 06:40:06,332 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 499 transitions. Word has length 380 [2021-05-01 06:40:06,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:06,332 INFO L480 AbstractCegarLoop]: Abstraction has 388 states and 499 transitions. [2021-05-01 06:40:06,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 15 states have internal predecessors, (56), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:06,332 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 499 transitions. [2021-05-01 06:40:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-05-01 06:40:06,334 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:06,334 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 12, 12, 12, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:06,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-05-01 06:40:06,334 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:06,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1927033876, now seen corresponding path program 38 times [2021-05-01 06:40:06,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:06,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [536105620] [2021-05-01 06:40:06,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:06,339 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:06,340 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:06,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:06,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:06,492 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:06,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:06,494 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,498 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,503 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,509 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,515 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,530 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,538 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,547 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,557 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,569 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:06,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:06,604 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:06,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:06,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:06,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:06,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:06,630 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:06,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [536105620] [2021-05-01 06:40:06,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [536105620] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:06,630 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:06,630 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-05-01 06:40:06,630 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186228542] [2021-05-01 06:40:06,630 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-05-01 06:40:06,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:06,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-05-01 06:40:06,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:40:06,631 INFO L87 Difference]: Start difference. First operand 388 states and 499 transitions. Second operand has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:07,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:07,196 INFO L93 Difference]: Finished difference Result 1148 states and 1508 transitions. [2021-05-01 06:40:07,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-01 06:40:07,196 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 383 [2021-05-01 06:40:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:07,199 INFO L225 Difference]: With dead ends: 1148 [2021-05-01 06:40:07,199 INFO L226 Difference]: Without dead ends: 1137 [2021-05-01 06:40:07,200 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 118.2ms TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2021-05-01 06:40:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2021-05-01 06:40:07,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 391. [2021-05-01 06:40:07,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 385 states have (on average 1.290909090909091) internal successors, (497), 385 states have internal predecessors, (497), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:07,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 502 transitions. [2021-05-01 06:40:07,253 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 502 transitions. Word has length 383 [2021-05-01 06:40:07,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:07,253 INFO L480 AbstractCegarLoop]: Abstraction has 391 states and 502 transitions. [2021-05-01 06:40:07,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.4705882352941178) internal successors, (59), 16 states have internal predecessors, (59), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:07,253 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 502 transitions. [2021-05-01 06:40:07,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-05-01 06:40:07,255 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:07,255 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 13, 13, 13, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:07,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-05-01 06:40:07,255 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:07,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:07,255 INFO L82 PathProgramCache]: Analyzing trace with hash -1948668195, now seen corresponding path program 39 times [2021-05-01 06:40:07,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:07,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [699126879] [2021-05-01 06:40:07,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:07,260 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:07,261 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:07,412 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:07,413 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:07,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:07,415 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,420 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,425 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,430 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,437 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,443 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,451 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,460 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,469 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,479 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,489 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,501 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,525 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,538 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:07,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:07,554 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:07,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:07,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:07,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:07,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:07,575 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:07,575 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [699126879] [2021-05-01 06:40:07,575 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [699126879] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:07,575 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:07,575 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-05-01 06:40:07,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375374002] [2021-05-01 06:40:07,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-01 06:40:07,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:07,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-01 06:40:07,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:40:07,576 INFO L87 Difference]: Start difference. First operand 391 states and 502 transitions. Second operand has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 17 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:08,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:08,143 INFO L93 Difference]: Finished difference Result 1231 states and 1618 transitions. [2021-05-01 06:40:08,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-05-01 06:40:08,143 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 17 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 386 [2021-05-01 06:40:08,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:08,146 INFO L225 Difference]: With dead ends: 1231 [2021-05-01 06:40:08,146 INFO L226 Difference]: Without dead ends: 1220 [2021-05-01 06:40:08,147 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 147.4ms TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2021-05-01 06:40:08,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2021-05-01 06:40:08,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 394. [2021-05-01 06:40:08,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 388 states have (on average 1.288659793814433) internal successors, (500), 388 states have internal predecessors, (500), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:08,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2021-05-01 06:40:08,197 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 386 [2021-05-01 06:40:08,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:08,198 INFO L480 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2021-05-01 06:40:08,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.4444444444444446) internal successors, (62), 17 states have internal predecessors, (62), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:08,198 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2021-05-01 06:40:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2021-05-01 06:40:08,199 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:08,199 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 14, 14, 14, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:08,199 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-05-01 06:40:08,199 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:08,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:08,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1383246988, now seen corresponding path program 40 times [2021-05-01 06:40:08,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:08,200 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1198324149] [2021-05-01 06:40:08,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:08,205 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:08,206 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:08,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:08,364 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:08,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:08,365 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:08,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:08,367 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,371 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,377 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,382 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,389 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,396 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,404 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,413 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,422 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,432 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,443 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,455 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,467 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,479 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,509 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:08,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:08,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:08,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:08,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:08,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:08,553 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:08,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:08,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:08,554 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:08,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1198324149] [2021-05-01 06:40:08,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1198324149] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:08,554 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:08,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-05-01 06:40:08,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626520163] [2021-05-01 06:40:08,555 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-01 06:40:08,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:08,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-01 06:40:08,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2021-05-01 06:40:08,556 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:09,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:09,167 INFO L93 Difference]: Finished difference Result 1314 states and 1728 transitions. [2021-05-01 06:40:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-01 06:40:09,168 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 389 [2021-05-01 06:40:09,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:09,171 INFO L225 Difference]: With dead ends: 1314 [2021-05-01 06:40:09,171 INFO L226 Difference]: Without dead ends: 1303 [2021-05-01 06:40:09,172 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 173.6ms TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2021-05-01 06:40:09,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1303 states. [2021-05-01 06:40:09,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1303 to 397. [2021-05-01 06:40:09,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 391 states have (on average 1.2864450127877238) internal successors, (503), 391 states have internal predecessors, (503), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:09,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 508 transitions. [2021-05-01 06:40:09,223 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 508 transitions. Word has length 389 [2021-05-01 06:40:09,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:09,223 INFO L480 AbstractCegarLoop]: Abstraction has 397 states and 508 transitions. [2021-05-01 06:40:09,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 18 states have internal predecessors, (65), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:09,223 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 508 transitions. [2021-05-01 06:40:09,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-05-01 06:40:09,225 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:09,225 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 15, 15, 15, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:09,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-05-01 06:40:09,225 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:09,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:09,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1781804163, now seen corresponding path program 41 times [2021-05-01 06:40:09,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:09,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [569081101] [2021-05-01 06:40:09,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:09,230 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:09,231 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:09,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:09,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:09,391 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:09,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:09,394 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,398 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,402 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,407 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,413 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,420 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,427 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,435 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,445 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,455 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,466 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,483 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,495 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,508 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,522 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,536 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:09,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:09,551 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:09,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:09,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:09,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:09,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:09,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:09,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:09,570 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:09,570 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [569081101] [2021-05-01 06:40:09,570 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [569081101] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:09,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:09,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-05-01 06:40:09,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768589440] [2021-05-01 06:40:09,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-05-01 06:40:09,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:09,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-05-01 06:40:09,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:40:09,571 INFO L87 Difference]: Start difference. First operand 397 states and 508 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:10,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:10,300 INFO L93 Difference]: Finished difference Result 1397 states and 1838 transitions. [2021-05-01 06:40:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-01 06:40:10,300 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 392 [2021-05-01 06:40:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:10,303 INFO L225 Difference]: With dead ends: 1397 [2021-05-01 06:40:10,303 INFO L226 Difference]: Without dead ends: 1386 [2021-05-01 06:40:10,303 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 159.2ms TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2021-05-01 06:40:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2021-05-01 06:40:10,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 400. [2021-05-01 06:40:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 394 states have (on average 1.284263959390863) internal successors, (506), 394 states have internal predecessors, (506), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:10,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 511 transitions. [2021-05-01 06:40:10,365 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 511 transitions. Word has length 392 [2021-05-01 06:40:10,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:10,365 INFO L480 AbstractCegarLoop]: Abstraction has 400 states and 511 transitions. [2021-05-01 06:40:10,365 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 19 states have internal predecessors, (68), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 511 transitions. [2021-05-01 06:40:10,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-05-01 06:40:10,366 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:10,366 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 16, 16, 16, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:10,367 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-05-01 06:40:10,367 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:10,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:10,367 INFO L82 PathProgramCache]: Analyzing trace with hash 385968852, now seen corresponding path program 42 times [2021-05-01 06:40:10,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:10,367 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1048179613] [2021-05-01 06:40:10,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:10,372 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:10,373 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:10,534 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:10,535 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:10,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:10,537 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,541 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,546 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,552 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,558 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,564 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,571 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,583 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,592 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,602 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,612 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,624 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,636 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,648 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,662 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,676 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,691 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:10,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:10,707 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:10,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:10,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:10,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:10,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:10,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:10,733 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:10,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1048179613] [2021-05-01 06:40:10,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1048179613] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:10,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:10,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-05-01 06:40:10,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995014627] [2021-05-01 06:40:10,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-01 06:40:10,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:10,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-01 06:40:10,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2021-05-01 06:40:10,738 INFO L87 Difference]: Start difference. First operand 400 states and 511 transitions. Second operand has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:11,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:11,518 INFO L93 Difference]: Finished difference Result 1480 states and 1948 transitions. [2021-05-01 06:40:11,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-05-01 06:40:11,519 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 395 [2021-05-01 06:40:11,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:11,522 INFO L225 Difference]: With dead ends: 1480 [2021-05-01 06:40:11,522 INFO L226 Difference]: Without dead ends: 1469 [2021-05-01 06:40:11,523 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 175.5ms TimeCoverageRelationStatistics Valid=192, Invalid=228, Unknown=0, NotChecked=0, Total=420 [2021-05-01 06:40:11,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1469 states. [2021-05-01 06:40:11,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1469 to 403. [2021-05-01 06:40:11,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 397 states have (on average 1.2821158690176322) internal successors, (509), 397 states have internal predecessors, (509), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:11,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 514 transitions. [2021-05-01 06:40:11,577 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 514 transitions. Word has length 395 [2021-05-01 06:40:11,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:11,578 INFO L480 AbstractCegarLoop]: Abstraction has 403 states and 514 transitions. [2021-05-01 06:40:11,578 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.380952380952381) internal successors, (71), 20 states have internal predecessors, (71), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:11,578 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 514 transitions. [2021-05-01 06:40:11,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-05-01 06:40:11,579 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:11,579 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 17, 17, 17, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:11,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-05-01 06:40:11,580 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:11,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:11,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1383596061, now seen corresponding path program 43 times [2021-05-01 06:40:11,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:11,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844618783] [2021-05-01 06:40:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:11,585 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:11,585 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:11,754 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:11,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:11,755 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:11,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:11,757 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,761 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,766 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,772 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,778 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,785 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,793 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,801 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,810 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,820 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,830 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,842 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,854 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,867 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,881 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,896 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,913 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,930 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:11,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:11,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:11,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:11,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:11,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:11,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:11,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:11,971 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:11,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844618783] [2021-05-01 06:40:11,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1844618783] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:11,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:11,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-05-01 06:40:11,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221580159] [2021-05-01 06:40:11,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-05-01 06:40:11,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:11,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-05-01 06:40:11,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2021-05-01 06:40:11,974 INFO L87 Difference]: Start difference. First operand 403 states and 514 transitions. Second operand has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:12,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:12,833 INFO L93 Difference]: Finished difference Result 1563 states and 2058 transitions. [2021-05-01 06:40:12,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-01 06:40:12,833 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 398 [2021-05-01 06:40:12,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:12,837 INFO L225 Difference]: With dead ends: 1563 [2021-05-01 06:40:12,837 INFO L226 Difference]: Without dead ends: 1552 [2021-05-01 06:40:12,837 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 198.8ms TimeCoverageRelationStatistics Valid=212, Invalid=250, Unknown=0, NotChecked=0, Total=462 [2021-05-01 06:40:12,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2021-05-01 06:40:12,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 406. [2021-05-01 06:40:12,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 400 states have (on average 1.28) internal successors, (512), 400 states have internal predecessors, (512), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:12,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 517 transitions. [2021-05-01 06:40:12,895 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 517 transitions. Word has length 398 [2021-05-01 06:40:12,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:12,895 INFO L480 AbstractCegarLoop]: Abstraction has 406 states and 517 transitions. [2021-05-01 06:40:12,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 21 states have internal predecessors, (74), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 517 transitions. [2021-05-01 06:40:12,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-05-01 06:40:12,896 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:12,897 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 18, 18, 18, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:12,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-05-01 06:40:12,897 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:12,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:12,897 INFO L82 PathProgramCache]: Analyzing trace with hash 522091060, now seen corresponding path program 44 times [2021-05-01 06:40:12,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:12,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455396945] [2021-05-01 06:40:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:12,902 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:12,903 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:13,055 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:13,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:13,056 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:13,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:13,058 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,062 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,072 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,079 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,086 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,093 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,101 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,109 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,119 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,128 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,139 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,151 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,173 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,186 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,200 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,214 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,229 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,244 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,261 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:13,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:13,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:13,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:13,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:13,296 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:13,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:13,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:13,297 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:13,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455396945] [2021-05-01 06:40:13,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1455396945] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:13,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:13,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-05-01 06:40:13,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479866752] [2021-05-01 06:40:13,297 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-05-01 06:40:13,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:13,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-05-01 06:40:13,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2021-05-01 06:40:13,298 INFO L87 Difference]: Start difference. First operand 406 states and 517 transitions. Second operand has 23 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:14,223 INFO L93 Difference]: Finished difference Result 1646 states and 2168 transitions. [2021-05-01 06:40:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-01 06:40:14,223 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 401 [2021-05-01 06:40:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:14,227 INFO L225 Difference]: With dead ends: 1646 [2021-05-01 06:40:14,227 INFO L226 Difference]: Without dead ends: 1635 [2021-05-01 06:40:14,228 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 209.6ms TimeCoverageRelationStatistics Valid=233, Invalid=273, Unknown=0, NotChecked=0, Total=506 [2021-05-01 06:40:14,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2021-05-01 06:40:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 409. [2021-05-01 06:40:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 403 states have (on average 1.2779156327543424) internal successors, (515), 403 states have internal predecessors, (515), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:14,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 520 transitions. [2021-05-01 06:40:14,290 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 520 transitions. Word has length 401 [2021-05-01 06:40:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:14,291 INFO L480 AbstractCegarLoop]: Abstraction has 409 states and 520 transitions. [2021-05-01 06:40:14,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 3.347826086956522) internal successors, (77), 22 states have internal predecessors, (77), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:14,291 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 520 transitions. [2021-05-01 06:40:14,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2021-05-01 06:40:14,292 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:14,292 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 19, 19, 19, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:14,293 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-05-01 06:40:14,293 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:14,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:14,293 INFO L82 PathProgramCache]: Analyzing trace with hash -2143800131, now seen corresponding path program 45 times [2021-05-01 06:40:14,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:14,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [77549792] [2021-05-01 06:40:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:14,298 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:14,299 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:40:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:14,456 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:14,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:14,457 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:14,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-05-01 06:40:14,459 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,463 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,468 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,474 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,487 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,487 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,495 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,502 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,511 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,520 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,533 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,544 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,555 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,567 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,580 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,593 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,607 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,622 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,637 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,654 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,654 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,672 INFO L142 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-05-01 06:40:14,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-05-01 06:40:14,691 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:14,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:14,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:40:14,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:40:14,709 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:40:14,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:40:14,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:40:14,710 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:40:14,710 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [77549792] [2021-05-01 06:40:14,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [77549792] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:40:14,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:40:14,710 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-05-01 06:40:14,710 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538510628] [2021-05-01 06:40:14,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-01 06:40:14,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:40:14,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-01 06:40:14,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:40:14,711 INFO L87 Difference]: Start difference. First operand 409 states and 520 transitions. Second operand has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:40:15,868 INFO L93 Difference]: Finished difference Result 1727 states and 2276 transitions. [2021-05-01 06:40:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-05-01 06:40:15,868 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 404 [2021-05-01 06:40:15,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:40:15,872 INFO L225 Difference]: With dead ends: 1727 [2021-05-01 06:40:15,872 INFO L226 Difference]: Without dead ends: 1716 [2021-05-01 06:40:15,872 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 236.2ms TimeCoverageRelationStatistics Valid=255, Invalid=297, Unknown=0, NotChecked=0, Total=552 [2021-05-01 06:40:15,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2021-05-01 06:40:15,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 412. [2021-05-01 06:40:15,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 406 states have (on average 1.2758620689655173) internal successors, (518), 406 states have internal predecessors, (518), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:40:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 523 transitions. [2021-05-01 06:40:15,939 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 523 transitions. Word has length 404 [2021-05-01 06:40:15,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:40:15,939 INFO L480 AbstractCegarLoop]: Abstraction has 412 states and 523 transitions. [2021-05-01 06:40:15,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.3333333333333335) internal successors, (80), 23 states have internal predecessors, (80), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:40:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 523 transitions. [2021-05-01 06:40:15,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-05-01 06:40:15,941 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:40:15,941 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 100, 20, 20, 20, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:40:15,941 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-05-01 06:40:15,941 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:40:15,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:40:15,941 INFO L82 PathProgramCache]: Analyzing trace with hash 826966420, now seen corresponding path program 46 times [2021-05-01 06:40:15,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:40:15,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958374408] [2021-05-01 06:40:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:40:15,946 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:40:15,947 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:42:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:42:35,567 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:42:35,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:42:35,592 INFO L142 QuantifierPusher]: treesize reduction 206, result has 54.2 percent of original size [2021-05-01 06:42:35,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-05-01 06:42:35,719 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2021-05-01 06:42:35,737 INFO L142 QuantifierPusher]: treesize reduction 206, result has 54.2 percent of original size [2021-05-01 06:42:35,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-05-01 06:42:35,754 INFO L142 QuantifierPusher]: treesize reduction 206, result has 69.3 percent of original size [2021-05-01 06:42:35,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 465 [2021-05-01 06:42:35,926 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 108 [2021-05-01 06:42:35,936 INFO L142 QuantifierPusher]: treesize reduction 206, result has 55.9 percent of original size [2021-05-01 06:42:35,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-05-01 06:42:35,968 INFO L142 QuantifierPusher]: treesize reduction 230, result has 68.6 percent of original size [2021-05-01 06:42:35,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 502 [2021-05-01 06:42:36,135 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 108 [2021-05-01 06:42:36,156 INFO L142 QuantifierPusher]: treesize reduction 230, result has 58.2 percent of original size [2021-05-01 06:42:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 320 [2021-05-01 06:42:36,320 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 107 [2021-05-01 06:42:36,342 INFO L142 QuantifierPusher]: treesize reduction 216, result has 70.4 percent of original size [2021-05-01 06:42:36,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 514 [2021-05-01 06:42:36,560 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 111 [2021-05-01 06:42:36,576 INFO L142 QuantifierPusher]: treesize reduction 216, result has 58.4 percent of original size [2021-05-01 06:42:36,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-05-01 06:42:36,612 INFO L142 QuantifierPusher]: treesize reduction 216, result has 69.9 percent of original size [2021-05-01 06:42:36,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 502 [2021-05-01 06:42:36,795 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2021-05-01 06:42:36,811 INFO L142 QuantifierPusher]: treesize reduction 216, result has 58.1 percent of original size [2021-05-01 06:42:36,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-05-01 06:42:36,999 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 115 [2021-05-01 06:42:37,013 INFO L142 QuantifierPusher]: treesize reduction 216, result has 57.4 percent of original size [2021-05-01 06:42:37,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 291 [2021-05-01 06:42:37,219 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 111 [2021-05-01 06:42:37,245 INFO L142 QuantifierPusher]: treesize reduction 266, result has 53.3 percent of original size [2021-05-01 06:42:37,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 303 [2021-05-01 06:42:37,429 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2021-05-01 06:42:37,443 INFO L142 QuantifierPusher]: treesize reduction 291, result has 56.2 percent of original size [2021-05-01 06:42:37,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 374 [2021-05-01 06:42:37,663 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 116 [2021-05-01 06:42:37,675 INFO L142 QuantifierPusher]: treesize reduction 267, result has 54.3 percent of original size [2021-05-01 06:42:37,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 317 [2021-05-01 06:42:37,856 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 112 [2021-05-01 06:42:37,883 INFO L142 QuantifierPusher]: treesize reduction 319, result has 54.0 percent of original size [2021-05-01 06:42:37,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 375 [2021-05-01 06:42:38,163 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 116 [2021-05-01 06:42:38,183 INFO L142 QuantifierPusher]: treesize reduction 363, result has 54.2 percent of original size [2021-05-01 06:42:38,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-05-01 06:42:38,469 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 116 [2021-05-01 06:42:38,485 INFO L142 QuantifierPusher]: treesize reduction 315, result has 54.1 percent of original size [2021-05-01 06:42:38,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 371 [2021-05-01 06:42:38,754 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 112 [2021-05-01 06:42:38,768 INFO L142 QuantifierPusher]: treesize reduction 271, result has 58.2 percent of original size [2021-05-01 06:42:38,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-05-01 06:42:39,000 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 112 [2021-05-01 06:42:39,024 INFO L142 QuantifierPusher]: treesize reduction 363, result has 53.5 percent of original size [2021-05-01 06:42:39,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-05-01 06:42:39,348 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 127 [2021-05-01 06:42:39,387 INFO L142 QuantifierPusher]: treesize reduction 277, result has 56.5 percent of original size [2021-05-01 06:42:39,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 360 [2021-05-01 06:42:39,604 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 103 [2021-05-01 06:42:39,634 INFO L142 QuantifierPusher]: treesize reduction 312, result has 53.0 percent of original size [2021-05-01 06:42:39,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 352 [2021-05-01 06:42:39,848 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 102 [2021-05-01 06:42:39,865 INFO L142 QuantifierPusher]: treesize reduction 358, result has 54.5 percent of original size [2021-05-01 06:42:39,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 429 [2021-05-01 06:42:40,137 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 123 [2021-05-01 06:42:40,153 INFO L142 QuantifierPusher]: treesize reduction 337, result has 52.1 percent of original size [2021-05-01 06:42:40,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 366 [2021-05-01 06:42:40,372 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 99 [2021-05-01 06:42:40,395 INFO L142 QuantifierPusher]: treesize reduction 286, result has 55.3 percent of original size [2021-05-01 06:42:40,397 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 354 [2021-05-01 06:42:40,617 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 108 [2021-05-01 06:42:40,637 INFO L142 QuantifierPusher]: treesize reduction 316, result has 57.5 percent of original size [2021-05-01 06:42:40,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 427 [2021-05-01 06:42:40,957 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 117 [2021-05-01 06:42:40,977 INFO L142 QuantifierPusher]: treesize reduction 283, result has 56.7 percent of original size [2021-05-01 06:42:40,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 370 [2021-05-01 06:42:41,267 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 104 [2021-05-01 06:42:41,282 INFO L142 QuantifierPusher]: treesize reduction 295, result has 56.6 percent of original size [2021-05-01 06:42:41,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 385 [2021-05-01 06:42:41,528 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 104 [2021-05-01 06:42:41,548 INFO L142 QuantifierPusher]: treesize reduction 360, result has 55.4 percent of original size [2021-05-01 06:42:41,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-05-01 06:42:41,900 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 115 [2021-05-01 06:42:41,916 INFO L142 QuantifierPusher]: treesize reduction 295, result has 57.4 percent of original size [2021-05-01 06:42:41,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 398 [2021-05-01 06:42:42,164 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 98 [2021-05-01 06:42:42,180 INFO L142 QuantifierPusher]: treesize reduction 290, result has 58.5 percent of original size [2021-05-01 06:42:42,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 409 [2021-05-01 06:42:42,481 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 98 [2021-05-01 06:42:42,500 INFO L142 QuantifierPusher]: treesize reduction 337, result has 57.7 percent of original size [2021-05-01 06:42:42,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 459 [2021-05-01 06:42:42,844 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 106 [2021-05-01 06:42:42,860 INFO L142 QuantifierPusher]: treesize reduction 289, result has 58.0 percent of original size [2021-05-01 06:42:42,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 399 [2021-05-01 06:42:43,167 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 94 [2021-05-01 06:42:43,180 INFO L142 QuantifierPusher]: treesize reduction 265, result has 60.2 percent of original size [2021-05-01 06:42:43,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 400 [2021-05-01 06:42:43,446 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 95 [2021-05-01 06:42:43,466 INFO L142 QuantifierPusher]: treesize reduction 343, result has 56.6 percent of original size [2021-05-01 06:42:43,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 448 [2021-05-01 06:42:43,773 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 102 [2021-05-01 06:42:43,787 INFO L142 QuantifierPusher]: treesize reduction 282, result has 58.8 percent of original size [2021-05-01 06:42:43,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 402 [2021-05-01 06:42:44,060 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 88 [2021-05-01 06:42:44,103 INFO L142 QuantifierPusher]: treesize reduction 257, result has 59.3 percent of original size [2021-05-01 06:42:44,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 374 [2021-05-01 06:42:44,378 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 88 [2021-05-01 06:42:44,416 INFO L142 QuantifierPusher]: treesize reduction 270, result has 59.5 percent of original size [2021-05-01 06:42:44,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 397 [2021-05-01 06:42:44,722 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 94 [2021-05-01 06:42:44,771 INFO L142 QuantifierPusher]: treesize reduction 246, result has 57.8 percent of original size [2021-05-01 06:42:44,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 337 [2021-05-01 06:42:45,046 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2021-05-01 06:42:45,062 INFO L142 QuantifierPusher]: treesize reduction 364, result has 49.0 percent of original size [2021-05-01 06:42:45,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 350 [2021-05-01 06:42:45,385 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 81 [2021-05-01 06:42:45,408 INFO L142 QuantifierPusher]: treesize reduction 417, result has 49.2 percent of original size [2021-05-01 06:42:45,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 404 [2021-05-01 06:42:45,728 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 91 [2021-05-01 06:42:45,749 INFO L142 QuantifierPusher]: treesize reduction 343, result has 51.7 percent of original size [2021-05-01 06:42:45,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 367 [2021-05-01 06:42:46,054 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 78 [2021-05-01 06:42:46,066 INFO L142 QuantifierPusher]: treesize reduction 236, result has 60.3 percent of original size [2021-05-01 06:42:46,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-05-01 06:42:46,342 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2021-05-01 06:42:46,357 INFO L142 QuantifierPusher]: treesize reduction 254, result has 60.9 percent of original size [2021-05-01 06:42:46,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 396 [2021-05-01 06:42:46,676 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 91 [2021-05-01 06:42:46,689 INFO L142 QuantifierPusher]: treesize reduction 236, result has 59.2 percent of original size [2021-05-01 06:42:46,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 343 [2021-05-01 06:42:46,962 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 72 [2021-05-01 06:42:46,985 INFO L142 QuantifierPusher]: treesize reduction 296, result has 56.5 percent of original size [2021-05-01 06:42:46,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 384 [2021-05-01 06:42:47,299 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 70 [2021-05-01 06:42:47,327 INFO L142 QuantifierPusher]: treesize reduction 379, result has 51.4 percent of original size [2021-05-01 06:42:47,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 401 [2021-05-01 06:42:47,639 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 58 [2021-05-01 06:42:47,661 INFO L142 QuantifierPusher]: treesize reduction 266, result has 56.2 percent of original size [2021-05-01 06:42:47,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 341 [2021-05-01 06:42:47,681 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,692 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,704 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,718 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,729 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,748 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,760 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,772 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,796 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.2 percent of original size [2021-05-01 06:42:47,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:42:47,825 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.6 percent of original size [2021-05-01 06:42:47,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 06:42:47,837 INFO L142 QuantifierPusher]: treesize reduction 174, result has 57.6 percent of original size [2021-05-01 06:42:47,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 06:42:47,853 INFO L142 QuantifierPusher]: treesize reduction 180, result has 59.7 percent of original size [2021-05-01 06:42:47,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:42:47,870 INFO L142 QuantifierPusher]: treesize reduction 180, result has 59.7 percent of original size [2021-05-01 06:42:47,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:42:47,886 INFO L142 QuantifierPusher]: treesize reduction 180, result has 59.7 percent of original size [2021-05-01 06:42:47,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:42:47,901 INFO L142 QuantifierPusher]: treesize reduction 180, result has 59.7 percent of original size [2021-05-01 06:42:47,903 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:42:47,917 INFO L142 QuantifierPusher]: treesize reduction 215, result has 55.4 percent of original size [2021-05-01 06:42:47,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 267 [2021-05-01 06:42:47,937 INFO L142 QuantifierPusher]: treesize reduction 213, result has 58.4 percent of original size [2021-05-01 06:42:47,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 299 [2021-05-01 06:42:47,962 INFO L142 QuantifierPusher]: treesize reduction 215, result has 57.6 percent of original size [2021-05-01 06:42:47,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-05-01 06:42:47,983 INFO L142 QuantifierPusher]: treesize reduction 166, result has 61.4 percent of original size [2021-05-01 06:42:47,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-05-01 06:42:47,998 INFO L142 QuantifierPusher]: treesize reduction 166, result has 61.4 percent of original size [2021-05-01 06:42:47,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 264 [2021-05-01 06:42:48,015 INFO L142 QuantifierPusher]: treesize reduction 208, result has 57.7 percent of original size [2021-05-01 06:42:48,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 284 [2021-05-01 06:42:48,036 INFO L142 QuantifierPusher]: treesize reduction 196, result has 58.5 percent of original size [2021-05-01 06:42:48,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 276 [2021-05-01 06:42:48,057 INFO L142 QuantifierPusher]: treesize reduction 196, result has 58.1 percent of original size [2021-05-01 06:42:48,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 272 [2021-05-01 06:42:48,076 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,089 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,104 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,118 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,146 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,159 INFO L142 QuantifierPusher]: treesize reduction 157, result has 59.3 percent of original size [2021-05-01 06:42:48,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 229 [2021-05-01 06:42:48,174 INFO L142 QuantifierPusher]: treesize reduction 194, result has 57.4 percent of original size [2021-05-01 06:42:48,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 261 [2021-05-01 06:42:48,197 INFO L142 QuantifierPusher]: treesize reduction 210, result has 55.5 percent of original size [2021-05-01 06:42:48,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 262 [2021-05-01 06:42:48,216 INFO L142 QuantifierPusher]: treesize reduction 186, result has 58.0 percent of original size [2021-05-01 06:42:48,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 257 [2021-05-01 06:42:48,232 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,242 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,252 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,262 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,277 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,287 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,306 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,317 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,327 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,337 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,347 INFO L142 QuantifierPusher]: treesize reduction 141, result has 57.7 percent of original size [2021-05-01 06:42:48,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-05-01 06:42:48,358 INFO L142 QuantifierPusher]: treesize reduction 141, result has 58.0 percent of original size [2021-05-01 06:42:48,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-05-01 06:42:48,369 INFO L142 QuantifierPusher]: treesize reduction 141, result has 58.0 percent of original size [2021-05-01 06:42:48,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-05-01 06:42:48,392 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,404 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,416 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,429 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,445 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,457 INFO L142 QuantifierPusher]: treesize reduction 135, result has 60.4 percent of original size [2021-05-01 06:42:48,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:42:48,470 INFO L142 QuantifierPusher]: treesize reduction 186, result has 54.9 percent of original size [2021-05-01 06:42:48,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 226 [2021-05-01 06:42:48,488 INFO L142 QuantifierPusher]: treesize reduction 179, result has 54.9 percent of original size [2021-05-01 06:42:48,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 06:42:48,506 INFO L142 QuantifierPusher]: treesize reduction 173, result has 55.3 percent of original size [2021-05-01 06:42:48,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 06:42:48,520 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,528 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,537 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,546 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,556 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,565 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,574 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,583 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,592 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,600 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,609 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,620 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,629 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,640 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,654 INFO L142 QuantifierPusher]: treesize reduction 286, result has 37.4 percent of original size [2021-05-01 06:42:48,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,664 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,673 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.6 percent of original size [2021-05-01 06:42:48,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 171 [2021-05-01 06:42:48,686 INFO L142 QuantifierPusher]: treesize reduction 156, result has 58.2 percent of original size [2021-05-01 06:42:48,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-05-01 06:42:48,702 INFO L142 QuantifierPusher]: treesize reduction 144, result has 59.2 percent of original size [2021-05-01 06:42:48,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-05-01 06:42:48,718 INFO L142 QuantifierPusher]: treesize reduction 144, result has 58.7 percent of original size [2021-05-01 06:42:48,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-05-01 06:42:48,731 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,746 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,755 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,765 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,773 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,785 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,794 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,803 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,812 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,820 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,829 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,841 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,850 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,858 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,867 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,875 INFO L142 QuantifierPusher]: treesize reduction 131, result has 56.2 percent of original size [2021-05-01 06:42:48,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 168 [2021-05-01 06:42:48,884 INFO L142 QuantifierPusher]: treesize reduction 191, result has 48.1 percent of original size [2021-05-01 06:42:48,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-05-01 06:42:48,898 INFO L142 QuantifierPusher]: treesize reduction 179, result has 48.6 percent of original size [2021-05-01 06:42:48,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:42:48,910 INFO L142 QuantifierPusher]: treesize reduction 180, result has 47.7 percent of original size [2021-05-01 06:42:48,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:42:48,919 INFO L142 QuantifierPusher]: treesize reduction 100, result has 59.7 percent of original size [2021-05-01 06:42:48,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 06:42:48,927 INFO L142 QuantifierPusher]: treesize reduction 100, result has 59.7 percent of original size [2021-05-01 06:42:48,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 148 [2021-05-01 06:42:48,935 INFO L142 QuantifierPusher]: treesize reduction 149, result has 53.3 percent of original size [2021-05-01 06:42:48,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 170 [2021-05-01 06:42:48,947 INFO L142 QuantifierPusher]: treesize reduction 137, result has 54.2 percent of original size [2021-05-01 06:42:48,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 162 [2021-05-01 06:42:48,958 INFO L142 QuantifierPusher]: treesize reduction 138, result has 53.2 percent of original size [2021-05-01 06:42:48,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:42:48,967 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:48,973 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:48,978 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:48,984 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:48,989 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:48,996 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:48,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:49,001 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:49,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:49,018 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:49,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:49,023 INFO L142 QuantifierPusher]: treesize reduction 98, result has 51.7 percent of original size [2021-05-01 06:42:49,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 105 [2021-05-01 06:42:49,034 INFO L142 QuantifierPusher]: treesize reduction 98, result has 52.4 percent of original size [2021-05-01 06:42:49,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 06:42:49,040 INFO L142 QuantifierPusher]: treesize reduction 98, result has 52.4 percent of original size [2021-05-01 06:42:49,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 108 [2021-05-01 06:42:49,046 INFO L142 QuantifierPusher]: treesize reduction 77, result has 67.2 percent of original size [2021-05-01 06:42:49,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 06:42:49,053 INFO L142 QuantifierPusher]: treesize reduction 77, result has 67.2 percent of original size [2021-05-01 06:42:49,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 06:42:49,060 INFO L142 QuantifierPusher]: treesize reduction 77, result has 67.2 percent of original size [2021-05-01 06:42:49,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 06:42:49,067 INFO L142 QuantifierPusher]: treesize reduction 77, result has 67.2 percent of original size [2021-05-01 06:42:49,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 158 [2021-05-01 06:42:49,075 INFO L142 QuantifierPusher]: treesize reduction 107, result has 60.9 percent of original size [2021-05-01 06:42:49,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 06:42:49,086 INFO L142 QuantifierPusher]: treesize reduction 107, result has 60.9 percent of original size [2021-05-01 06:42:49,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 06:42:49,097 INFO L142 QuantifierPusher]: treesize reduction 107, result has 60.9 percent of original size [2021-05-01 06:42:49,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 167 [2021-05-01 06:42:49,106 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,111 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,116 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,121 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,127 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,140 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,146 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,151 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,157 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,162 INFO L142 QuantifierPusher]: treesize reduction 75, result has 62.3 percent of original size [2021-05-01 06:42:49,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 124 [2021-05-01 06:42:49,168 INFO L142 QuantifierPusher]: treesize reduction 108, result has 57.6 percent of original size [2021-05-01 06:42:49,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 06:42:49,175 INFO L142 QuantifierPusher]: treesize reduction 108, result has 57.6 percent of original size [2021-05-01 06:42:49,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 06:42:49,181 INFO L142 QuantifierPusher]: treesize reduction 108, result has 57.6 percent of original size [2021-05-01 06:42:49,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 147 [2021-05-01 06:42:49,186 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,191 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,195 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,199 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,204 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,208 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,213 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,217 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,221 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,226 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,230 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,234 INFO L142 QuantifierPusher]: treesize reduction 75, result has 58.6 percent of original size [2021-05-01 06:42:49,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 106 [2021-05-01 06:42:49,240 INFO L142 QuantifierPusher]: treesize reduction 114, result has 54.4 percent of original size [2021-05-01 06:42:49,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-05-01 06:42:49,247 INFO L142 QuantifierPusher]: treesize reduction 126, result has 51.9 percent of original size [2021-05-01 06:42:49,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 136 [2021-05-01 06:42:49,255 INFO L142 QuantifierPusher]: treesize reduction 113, result has 52.7 percent of original size [2021-05-01 06:42:49,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 126 [2021-05-01 06:42:49,260 INFO L142 QuantifierPusher]: treesize reduction 68, result has 53.7 percent of original size [2021-05-01 06:42:49,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-05-01 06:42:49,262 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-05-01 06:42:49,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:42:49,262 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:42:49,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:42:49,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:42:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:42:49,377 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:42:49,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:42:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:42:49,381 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:42:49,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958374408] [2021-05-01 06:42:49,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1958374408] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:42:49,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:42:49,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-05-01 06:42:49,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626099594] [2021-05-01 06:42:49,382 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-05-01 06:42:49,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:42:49,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-05-01 06:42:49,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1966, Unknown=0, NotChecked=0, Total=2070 [2021-05-01 06:42:49,383 INFO L87 Difference]: Start difference. First operand 412 states and 523 transitions. Second operand has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 45 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:42:50,554 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 115 [2021-05-01 06:42:50,992 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2021-05-01 06:42:51,201 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2021-05-01 06:42:51,455 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 104 [2021-05-01 06:42:51,733 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 106 [2021-05-01 06:42:51,997 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 108 [2021-05-01 06:42:52,303 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2021-05-01 06:42:52,591 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 126 [2021-05-01 06:42:52,863 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 109 [2021-05-01 06:42:53,150 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107 [2021-05-01 06:42:53,419 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 109 [2021-05-01 06:42:53,731 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 109 [2021-05-01 06:42:54,059 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 103 [2021-05-01 06:42:54,342 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 124 [2021-05-01 06:42:54,584 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 103 [2021-05-01 06:42:54,847 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2021-05-01 06:42:55,118 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 120 [2021-05-01 06:42:55,422 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108 [2021-05-01 06:42:55,725 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 128 [2021-05-01 06:42:56,002 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2021-05-01 06:42:56,281 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 107 [2021-05-01 06:42:56,543 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-05-01 06:42:56,839 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2021-05-01 06:42:57,159 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 123 [2021-05-01 06:42:57,462 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 110 [2021-05-01 06:42:57,752 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2021-05-01 06:42:58,061 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 133 [2021-05-01 06:42:58,352 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 111 [2021-05-01 06:42:58,636 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 109 [2021-05-01 06:42:58,907 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116 [2021-05-01 06:42:59,415 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 117 [2021-05-01 06:42:59,833 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 119 [2021-05-01 06:43:00,263 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 121 [2021-05-01 06:43:00,833 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 122 [2021-05-01 06:43:01,278 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 124 [2021-05-01 06:43:01,776 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 122 [2021-05-01 06:43:02,261 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 144 [2021-05-01 06:43:02,718 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 123 [2021-05-01 06:43:03,198 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 124 [2021-05-01 06:43:03,645 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 126 [2021-05-01 06:43:04,150 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 126 [2021-05-01 06:43:04,676 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 120 [2021-05-01 06:43:05,153 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 146 [2021-05-01 06:43:05,595 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 124 [2021-05-01 06:43:06,052 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 124 [2021-05-01 06:43:06,545 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 138 [2021-05-01 06:43:07,051 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 125 [2021-05-01 06:43:07,551 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 146 [2021-05-01 06:43:08,003 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 124 [2021-05-01 06:43:08,487 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 123 [2021-05-01 06:43:08,936 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 125 [2021-05-01 06:43:09,434 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 120 [2021-05-01 06:43:10,025 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 142 [2021-05-01 06:43:10,587 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 129 [2021-05-01 06:43:11,123 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 129 [2021-05-01 06:43:11,675 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 151 [2021-05-01 06:43:12,189 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 130 [2021-05-01 06:43:12,724 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 127 [2021-05-01 06:43:13,184 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 134 [2021-05-01 06:43:13,822 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 108 [2021-05-01 06:43:14,201 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 115 [2021-05-01 06:43:14,637 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 117 [2021-05-01 06:43:15,199 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 118 [2021-05-01 06:43:15,643 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 120 [2021-05-01 06:43:16,130 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 118 [2021-05-01 06:43:16,637 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 140 [2021-05-01 06:43:17,103 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 119 [2021-05-01 06:43:17,576 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 120 [2021-05-01 06:43:18,037 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 122 [2021-05-01 06:43:18,570 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 122 [2021-05-01 06:43:19,131 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 116 [2021-05-01 06:43:19,617 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 142 [2021-05-01 06:43:20,065 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 120 [2021-05-01 06:43:20,538 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 120 [2021-05-01 06:43:21,062 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 134 [2021-05-01 06:43:21,588 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 121 [2021-05-01 06:43:22,092 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 142 [2021-05-01 06:43:22,539 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 120 [2021-05-01 06:43:23,018 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 119 [2021-05-01 06:43:23,474 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 121 [2021-05-01 06:43:23,970 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 116 [2021-05-01 06:43:24,551 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 138 [2021-05-01 06:43:25,085 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 125 [2021-05-01 06:43:25,618 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 125 [2021-05-01 06:43:26,173 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 147 [2021-05-01 06:43:26,680 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 126 [2021-05-01 06:43:27,223 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 123 [2021-05-01 06:43:27,710 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 130 [2021-05-01 06:43:28,243 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 102 [2021-05-01 06:43:28,517 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2021-05-01 06:43:28,774 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 106 [2021-05-01 06:43:29,059 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-05-01 06:43:29,403 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 133 [2021-05-01 06:43:29,665 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 107 [2021-05-01 06:43:29,907 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2021-05-01 06:43:30,179 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 107 [2021-05-01 06:43:30,486 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 116 [2021-05-01 06:43:30,742 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-05-01 06:43:31,022 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 122 [2021-05-01 06:43:31,274 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 101 [2021-05-01 06:43:31,521 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-05-01 06:43:31,791 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 118 [2021-05-01 06:43:32,054 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 106 [2021-05-01 06:43:32,367 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 126 [2021-05-01 06:43:32,623 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2021-05-01 06:43:32,869 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2021-05-01 06:43:33,132 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 107 [2021-05-01 06:43:33,395 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2021-05-01 06:43:33,713 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 121 [2021-05-01 06:43:33,995 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 108 [2021-05-01 06:43:34,258 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2021-05-01 06:43:34,581 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 131 [2021-05-01 06:43:34,857 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2021-05-01 06:43:35,109 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-05-01 06:43:35,394 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 114 [2021-05-01 06:43:37,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:43:37,091 INFO L93 Difference]: Finished difference Result 1518 states and 1946 transitions. [2021-05-01 06:43:37,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-05-01 06:43:37,092 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 45 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 407 [2021-05-01 06:43:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:43:37,094 INFO L225 Difference]: With dead ends: 1518 [2021-05-01 06:43:37,094 INFO L226 Difference]: Without dead ends: 1165 [2021-05-01 06:43:37,096 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 5 SyntacticMatches, 148 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6783 ImplicationChecksByTransitivity, 47760.9ms TimeCoverageRelationStatistics Valid=1033, Invalid=24727, Unknown=0, NotChecked=0, Total=25760 [2021-05-01 06:43:37,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1165 states. [2021-05-01 06:43:37,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1165 to 875. [2021-05-01 06:43:37,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 869 states have (on average 1.3014959723820483) internal successors, (1131), 869 states have internal predecessors, (1131), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:43:37,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1136 transitions. [2021-05-01 06:43:37,313 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1136 transitions. Word has length 407 [2021-05-01 06:43:37,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:43:37,314 INFO L480 AbstractCegarLoop]: Abstraction has 875 states and 1136 transitions. [2021-05-01 06:43:37,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 45 states have internal predecessors, (73), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:43:37,314 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1136 transitions. [2021-05-01 06:43:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-05-01 06:43:37,316 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:43:37,316 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 99, 20, 20, 20, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:43:37,316 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-05-01 06:43:37,316 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:43:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:43:37,317 INFO L82 PathProgramCache]: Analyzing trace with hash 75299478, now seen corresponding path program 1 times [2021-05-01 06:43:37,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:43:37,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1036355044] [2021-05-01 06:43:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:43:37,324 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:43:37,325 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:48:09,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:48:10,283 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:48:10,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:48:10,287 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,393 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,397 INFO L142 QuantifierPusher]: treesize reduction 106, result has 71.0 percent of original size [2021-05-01 06:48:10,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 06:48:10,410 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,415 INFO L142 QuantifierPusher]: treesize reduction 106, result has 71.0 percent of original size [2021-05-01 06:48:10,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 06:48:10,427 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,431 INFO L142 QuantifierPusher]: treesize reduction 106, result has 71.0 percent of original size [2021-05-01 06:48:10,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 06:48:10,443 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,447 INFO L142 QuantifierPusher]: treesize reduction 106, result has 71.0 percent of original size [2021-05-01 06:48:10,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 06:48:10,459 INFO L142 QuantifierPusher]: treesize reduction 106, result has 58.9 percent of original size [2021-05-01 06:48:10,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-05-01 06:48:10,463 INFO L142 QuantifierPusher]: treesize reduction 106, result has 59.4 percent of original size [2021-05-01 06:48:10,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:10,571 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2021-05-01 06:48:10,576 INFO L142 QuantifierPusher]: treesize reduction 106, result has 59.4 percent of original size [2021-05-01 06:48:10,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:10,581 INFO L142 QuantifierPusher]: treesize reduction 106, result has 63.4 percent of original size [2021-05-01 06:48:10,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:10,704 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-05-01 06:48:10,709 INFO L142 QuantifierPusher]: treesize reduction 106, result has 63.4 percent of original size [2021-05-01 06:48:10,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:10,714 INFO L142 QuantifierPusher]: treesize reduction 106, result has 63.4 percent of original size [2021-05-01 06:48:10,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:10,844 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2021-05-01 06:48:10,849 INFO L142 QuantifierPusher]: treesize reduction 106, result has 63.4 percent of original size [2021-05-01 06:48:10,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:10,855 INFO L142 QuantifierPusher]: treesize reduction 142, result has 59.9 percent of original size [2021-05-01 06:48:10,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-05-01 06:48:11,005 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-05-01 06:48:11,013 INFO L142 QuantifierPusher]: treesize reduction 162, result has 57.7 percent of original size [2021-05-01 06:48:11,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-05-01 06:48:11,191 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2021-05-01 06:48:11,198 INFO L142 QuantifierPusher]: treesize reduction 165, result has 57.4 percent of original size [2021-05-01 06:48:11,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-05-01 06:48:11,228 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,370 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:11,375 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,381 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,560 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:11,565 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,570 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,717 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:11,720 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,725 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,875 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:11,882 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:11,888 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:11,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,048 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-05-01 06:48:12,053 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,059 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,222 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:12,226 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,231 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,396 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:12,400 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,405 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,568 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:12,573 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,748 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:12,753 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,758 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,936 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2021-05-01 06:48:12,940 INFO L142 QuantifierPusher]: treesize reduction 115, result has 60.3 percent of original size [2021-05-01 06:48:12,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-05-01 06:48:12,947 INFO L142 QuantifierPusher]: treesize reduction 152, result has 58.5 percent of original size [2021-05-01 06:48:12,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 06:48:13,166 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-05-01 06:48:13,174 INFO L142 QuantifierPusher]: treesize reduction 166, result has 56.3 percent of original size [2021-05-01 06:48:13,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 06:48:13,415 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-05-01 06:48:13,422 INFO L142 QuantifierPusher]: treesize reduction 158, result has 56.6 percent of original size [2021-05-01 06:48:13,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-05-01 06:48:13,439 INFO L142 QuantifierPusher]: treesize reduction 115, result has 57.7 percent of original size [2021-05-01 06:48:13,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,453 INFO L142 QuantifierPusher]: treesize reduction 115, result has 57.7 percent of original size [2021-05-01 06:48:13,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,466 INFO L142 QuantifierPusher]: treesize reduction 115, result has 57.7 percent of original size [2021-05-01 06:48:13,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,479 INFO L142 QuantifierPusher]: treesize reduction 115, result has 57.7 percent of original size [2021-05-01 06:48:13,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,493 INFO L142 QuantifierPusher]: treesize reduction 272, result has 36.6 percent of original size [2021-05-01 06:48:13,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,506 INFO L142 QuantifierPusher]: treesize reduction 117, result has 57.3 percent of original size [2021-05-01 06:48:13,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,521 INFO L142 QuantifierPusher]: treesize reduction 117, result has 57.3 percent of original size [2021-05-01 06:48:13,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:13,536 INFO L142 QuantifierPusher]: treesize reduction 168, result has 51.6 percent of original size [2021-05-01 06:48:13,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 06:48:13,562 INFO L142 QuantifierPusher]: treesize reduction 184, result has 49.0 percent of original size [2021-05-01 06:48:13,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 177 [2021-05-01 06:48:13,731 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-05-01 06:48:13,737 INFO L142 QuantifierPusher]: treesize reduction 176, result has 49.0 percent of original size [2021-05-01 06:48:13,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:13,887 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-05-01 06:48:13,893 INFO L142 QuantifierPusher]: treesize reduction 151, result has 58.9 percent of original size [2021-05-01 06:48:13,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-05-01 06:48:14,059 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-05-01 06:48:14,070 INFO L142 QuantifierPusher]: treesize reduction 163, result has 62.8 percent of original size [2021-05-01 06:48:14,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 275 [2021-05-01 06:48:14,274 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-05-01 06:48:14,282 INFO L142 QuantifierPusher]: treesize reduction 134, result has 66.2 percent of original size [2021-05-01 06:48:14,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-05-01 06:48:14,343 INFO L142 QuantifierPusher]: treesize reduction 134, result has 64.6 percent of original size [2021-05-01 06:48:14,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 245 [2021-05-01 06:48:14,526 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2021-05-01 06:48:14,534 INFO L142 QuantifierPusher]: treesize reduction 146, result has 62.2 percent of original size [2021-05-01 06:48:14,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-05-01 06:48:14,725 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 64 [2021-05-01 06:48:14,733 INFO L142 QuantifierPusher]: treesize reduction 129, result has 64.7 percent of original size [2021-05-01 06:48:14,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-05-01 06:48:14,804 INFO L142 QuantifierPusher]: treesize reduction 157, result has 63.6 percent of original size [2021-05-01 06:48:14,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-05-01 06:48:14,999 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 62 [2021-05-01 06:48:15,044 INFO L142 QuantifierPusher]: treesize reduction 178, result has 67.2 percent of original size [2021-05-01 06:48:15,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 364 [2021-05-01 06:48:15,277 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 63 [2021-05-01 06:48:15,301 INFO L142 QuantifierPusher]: treesize reduction 134, result has 68.5 percent of original size [2021-05-01 06:48:15,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-05-01 06:48:15,319 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,332 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,346 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,361 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,375 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,389 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,402 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,416 INFO L142 QuantifierPusher]: treesize reduction 102, result has 64.3 percent of original size [2021-05-01 06:48:15,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:15,451 INFO L142 QuantifierPusher]: treesize reduction 121, result has 62.8 percent of original size [2021-05-01 06:48:15,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:48:15,483 INFO L142 QuantifierPusher]: treesize reduction 135, result has 59.8 percent of original size [2021-05-01 06:48:15,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-05-01 06:48:15,527 INFO L142 QuantifierPusher]: treesize reduction 119, result has 61.0 percent of original size [2021-05-01 06:48:15,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-05-01 06:48:15,543 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,556 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,567 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,579 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,593 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,607 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,619 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,634 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,645 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,659 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,672 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,686 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,701 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,716 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,729 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,742 INFO L142 QuantifierPusher]: treesize reduction 102, result has 62.4 percent of original size [2021-05-01 06:48:15,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,757 INFO L142 QuantifierPusher]: treesize reduction 137, result has 58.1 percent of original size [2021-05-01 06:48:15,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-05-01 06:48:15,774 INFO L142 QuantifierPusher]: treesize reduction 151, result has 58.6 percent of original size [2021-05-01 06:48:15,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-05-01 06:48:15,791 INFO L142 QuantifierPusher]: treesize reduction 125, result has 59.0 percent of original size [2021-05-01 06:48:15,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-05-01 06:48:15,805 INFO L142 QuantifierPusher]: treesize reduction 92, result has 59.8 percent of original size [2021-05-01 06:48:15,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:15,814 INFO L142 QuantifierPusher]: treesize reduction 92, result has 59.8 percent of original size [2021-05-01 06:48:15,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:15,824 INFO L142 QuantifierPusher]: treesize reduction 92, result has 59.8 percent of original size [2021-05-01 06:48:15,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:15,835 INFO L142 QuantifierPusher]: treesize reduction 92, result has 60.3 percent of original size [2021-05-01 06:48:15,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 06:48:15,845 INFO L142 QuantifierPusher]: treesize reduction 92, result has 60.3 percent of original size [2021-05-01 06:48:15,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 140 [2021-05-01 06:48:15,859 INFO L142 QuantifierPusher]: treesize reduction 151, result has 57.1 percent of original size [2021-05-01 06:48:15,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-05-01 06:48:15,876 INFO L142 QuantifierPusher]: treesize reduction 145, result has 58.3 percent of original size [2021-05-01 06:48:15,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-05-01 06:48:15,892 INFO L142 QuantifierPusher]: treesize reduction 145, result has 57.1 percent of original size [2021-05-01 06:48:15,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-05-01 06:48:15,906 INFO L142 QuantifierPusher]: treesize reduction 84, result has 65.6 percent of original size [2021-05-01 06:48:15,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-05-01 06:48:15,917 INFO L142 QuantifierPusher]: treesize reduction 84, result has 65.6 percent of original size [2021-05-01 06:48:15,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 160 [2021-05-01 06:48:15,929 INFO L142 QuantifierPusher]: treesize reduction 110, result has 61.9 percent of original size [2021-05-01 06:48:15,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 179 [2021-05-01 06:48:15,942 INFO L142 QuantifierPusher]: treesize reduction 110, result has 60.6 percent of original size [2021-05-01 06:48:15,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,954 INFO L142 QuantifierPusher]: treesize reduction 110, result has 60.6 percent of original size [2021-05-01 06:48:15,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 169 [2021-05-01 06:48:15,965 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:15,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:15,973 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:15,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:15,982 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:15,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:15,991 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:15,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:15,999 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,008 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,018 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,025 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,026 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,033 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,040 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,042 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,050 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,058 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,066 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,076 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,085 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,095 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,104 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,112 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,120 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,147 INFO L142 QuantifierPusher]: treesize reduction 84, result has 63.5 percent of original size [2021-05-01 06:48:16,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-05-01 06:48:16,156 INFO L142 QuantifierPusher]: treesize reduction 121, result has 60.5 percent of original size [2021-05-01 06:48:16,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 06:48:16,171 INFO L142 QuantifierPusher]: treesize reduction 156, result has 58.3 percent of original size [2021-05-01 06:48:16,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-05-01 06:48:16,187 INFO L142 QuantifierPusher]: treesize reduction 135, result has 57.9 percent of original size [2021-05-01 06:48:16,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-05-01 06:48:16,201 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,210 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,219 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,228 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,238 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,247 INFO L142 QuantifierPusher]: treesize reduction 98, result has 58.6 percent of original size [2021-05-01 06:48:16,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:48:16,257 INFO L142 QuantifierPusher]: treesize reduction 98, result has 59.2 percent of original size [2021-05-01 06:48:16,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 06:48:16,265 INFO L142 QuantifierPusher]: treesize reduction 98, result has 59.2 percent of original size [2021-05-01 06:48:16,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 06:48:16,276 INFO L142 QuantifierPusher]: treesize reduction 79, result has 72.1 percent of original size [2021-05-01 06:48:16,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:48:16,289 INFO L142 QuantifierPusher]: treesize reduction 79, result has 72.1 percent of original size [2021-05-01 06:48:16,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:48:16,302 INFO L142 QuantifierPusher]: treesize reduction 79, result has 72.1 percent of original size [2021-05-01 06:48:16,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:48:16,313 INFO L142 QuantifierPusher]: treesize reduction 79, result has 72.1 percent of original size [2021-05-01 06:48:16,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:48:16,329 INFO L142 QuantifierPusher]: treesize reduction 135, result has 66.1 percent of original size [2021-05-01 06:48:16,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 263 [2021-05-01 06:48:16,352 INFO L142 QuantifierPusher]: treesize reduction 135, result has 64.7 percent of original size [2021-05-01 06:48:16,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 247 [2021-05-01 06:48:16,373 INFO L142 QuantifierPusher]: treesize reduction 135, result has 63.9 percent of original size [2021-05-01 06:48:16,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-05-01 06:48:16,390 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,399 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,407 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,416 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,425 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,435 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,445 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,456 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,466 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,477 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,487 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,498 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,523 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,533 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,543 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,551 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,560 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,568 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,576 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,586 INFO L142 QuantifierPusher]: treesize reduction 87, result has 64.0 percent of original size [2021-05-01 06:48:16,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 155 [2021-05-01 06:48:16,596 INFO L142 QuantifierPusher]: treesize reduction 124, result has 61.0 percent of original size [2021-05-01 06:48:16,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-05-01 06:48:16,615 INFO L142 QuantifierPusher]: treesize reduction 126, result has 62.5 percent of original size [2021-05-01 06:48:16,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-05-01 06:48:16,629 INFO L142 QuantifierPusher]: treesize reduction 124, result has 59.7 percent of original size [2021-05-01 06:48:16,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-05-01 06:48:16,639 INFO L142 QuantifierPusher]: treesize reduction 87, result has 61.2 percent of original size [2021-05-01 06:48:16,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:16,647 INFO L142 QuantifierPusher]: treesize reduction 87, result has 61.2 percent of original size [2021-05-01 06:48:16,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:16,655 INFO L142 QuantifierPusher]: treesize reduction 87, result has 61.2 percent of original size [2021-05-01 06:48:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:16,663 INFO L142 QuantifierPusher]: treesize reduction 87, result has 61.2 percent of original size [2021-05-01 06:48:16,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:48:16,671 INFO L142 QuantifierPusher]: treesize reduction 136, result has 53.6 percent of original size [2021-05-01 06:48:16,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:48:16,681 INFO L142 QuantifierPusher]: treesize reduction 124, result has 54.6 percent of original size [2021-05-01 06:48:16,683 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 149 [2021-05-01 06:48:16,690 INFO L142 QuantifierPusher]: treesize reduction 124, result has 53.9 percent of original size [2021-05-01 06:48:16,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:48:16,698 INFO L142 QuantifierPusher]: treesize reduction 78, result has 54.7 percent of original size [2021-05-01 06:48:16,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 06:48:16,704 INFO L142 QuantifierPusher]: treesize reduction 78, result has 54.7 percent of original size [2021-05-01 06:48:16,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 06:48:16,709 INFO L142 QuantifierPusher]: treesize reduction 78, result has 54.7 percent of original size [2021-05-01 06:48:16,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-05-01 06:48:16,714 INFO L142 QuantifierPusher]: treesize reduction 78, result has 55.4 percent of original size [2021-05-01 06:48:16,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:48:16,720 INFO L142 QuantifierPusher]: treesize reduction 78, result has 55.4 percent of original size [2021-05-01 06:48:16,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 97 [2021-05-01 06:48:16,727 INFO L142 QuantifierPusher]: treesize reduction 98, result has 59.2 percent of original size [2021-05-01 06:48:16,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 142 [2021-05-01 06:48:16,734 INFO L142 QuantifierPusher]: treesize reduction 118, result has 52.8 percent of original size [2021-05-01 06:48:16,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 06:48:16,743 INFO L142 QuantifierPusher]: treesize reduction 98, result has 55.5 percent of original size [2021-05-01 06:48:16,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 122 [2021-05-01 06:48:16,750 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,756 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,762 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,768 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,774 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,779 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,784 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,790 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,796 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,802 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,807 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,814 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,819 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,825 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,830 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,836 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,841 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,847 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,852 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,857 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,863 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,868 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,869 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,875 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,880 INFO L142 QuantifierPusher]: treesize reduction 72, result has 57.9 percent of original size [2021-05-01 06:48:16,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:48:16,886 INFO L142 QuantifierPusher]: treesize reduction 109, result has 54.2 percent of original size [2021-05-01 06:48:16,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 129 [2021-05-01 06:48:16,893 INFO L142 QuantifierPusher]: treesize reduction 138, result has 46.3 percent of original size [2021-05-01 06:48:16,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 119 [2021-05-01 06:48:16,901 INFO L142 QuantifierPusher]: treesize reduction 113, result has 47.7 percent of original size [2021-05-01 06:48:16,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-05-01 06:48:16,920 INFO L142 QuantifierPusher]: treesize reduction 76, result has 42.4 percent of original size [2021-05-01 06:48:16,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-05-01 06:48:16,925 INFO L142 QuantifierPusher]: treesize reduction 12, result has 7.7 percent of original size [2021-05-01 06:48:16,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:48:16,926 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:48:16,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:48:16,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:48:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:48:16,999 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:48:17,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:48:17,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:48:17,003 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:48:17,003 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1036355044] [2021-05-01 06:48:17,003 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [1036355044] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:48:17,003 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:48:17,004 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-05-01 06:48:17,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635679206] [2021-05-01 06:48:17,012 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-05-01 06:48:17,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:48:17,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-05-01 06:48:17,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2021-05-01 06:48:17,013 INFO L87 Difference]: Start difference. First operand 875 states and 1136 transitions. Second operand has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:48:17,952 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2021-05-01 06:48:19,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-01 06:48:19,741 INFO L93 Difference]: Finished difference Result 1682 states and 2185 transitions. [2021-05-01 06:48:19,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-05-01 06:48:19,742 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 407 [2021-05-01 06:48:19,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-01 06:48:19,744 INFO L225 Difference]: With dead ends: 1682 [2021-05-01 06:48:19,744 INFO L226 Difference]: Without dead ends: 875 [2021-05-01 06:48:19,746 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 21 SyntacticMatches, 164 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 5858.3ms TimeCoverageRelationStatistics Valid=124, Invalid=1136, Unknown=0, NotChecked=0, Total=1260 [2021-05-01 06:48:19,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 875 states. [2021-05-01 06:48:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 875 to 875. [2021-05-01 06:48:20,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 869 states have (on average 1.284234752589183) internal successors, (1116), 869 states have internal predecessors, (1116), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-05-01 06:48:20,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1121 transitions. [2021-05-01 06:48:20,011 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1121 transitions. Word has length 407 [2021-05-01 06:48:20,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-01 06:48:20,011 INFO L480 AbstractCegarLoop]: Abstraction has 875 states and 1121 transitions. [2021-05-01 06:48:20,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 3.0) internal successors, (87), 28 states have internal predecessors, (87), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:48:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1121 transitions. [2021-05-01 06:48:20,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2021-05-01 06:48:20,013 INFO L511 BasicCegarLoop]: Found error trace [2021-05-01 06:48:20,014 INFO L519 BasicCegarLoop]: trace histogram [100, 100, 94, 20, 20, 20, 6, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-01 06:48:20,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-05-01 06:48:20,014 INFO L428 AbstractCegarLoop]: === Iteration 55 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-01 06:48:20,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-01 06:48:20,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1717275928, now seen corresponding path program 2 times [2021-05-01 06:48:20,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-05-01 06:48:20,014 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546981258] [2021-05-01 06:48:20,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-01 06:48:20,022 WARN L74 AcceleratorJordan]: Jordan acceleration failed, because NONINTEGER_UPDATE [2021-05-01 06:48:20,023 INFO L224 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-05-01 06:53:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:10,629 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:10,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:10,642 INFO L142 QuantifierPusher]: treesize reduction 151, result has 56.1 percent of original size [2021-05-01 06:53:10,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-05-01 06:53:10,841 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2021-05-01 06:53:10,846 INFO L142 QuantifierPusher]: treesize reduction 151, result has 57.5 percent of original size [2021-05-01 06:53:10,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-05-01 06:53:11,055 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2021-05-01 06:53:11,062 INFO L142 QuantifierPusher]: treesize reduction 151, result has 71.6 percent of original size [2021-05-01 06:53:11,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 380 [2021-05-01 06:53:11,292 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2021-05-01 06:53:11,300 INFO L142 QuantifierPusher]: treesize reduction 151, result has 59.0 percent of original size [2021-05-01 06:53:11,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 217 [2021-05-01 06:53:11,339 INFO L142 QuantifierPusher]: treesize reduction 194, result has 68.2 percent of original size [2021-05-01 06:53:11,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 417 [2021-05-01 06:53:11,587 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 91 [2021-05-01 06:53:11,596 INFO L142 QuantifierPusher]: treesize reduction 188, result has 59.6 percent of original size [2021-05-01 06:53:11,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 277 [2021-05-01 06:53:11,841 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 92 [2021-05-01 06:53:11,850 INFO L142 QuantifierPusher]: treesize reduction 167, result has 71.8 percent of original size [2021-05-01 06:53:11,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 426 [2021-05-01 06:53:12,118 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 96 [2021-05-01 06:53:12,128 INFO L142 QuantifierPusher]: treesize reduction 167, result has 60.5 percent of original size [2021-05-01 06:53:12,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 256 [2021-05-01 06:53:12,184 INFO L142 QuantifierPusher]: treesize reduction 167, result has 71.1 percent of original size [2021-05-01 06:53:12,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 411 [2021-05-01 06:53:12,482 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 90 [2021-05-01 06:53:12,490 INFO L142 QuantifierPusher]: treesize reduction 167, result has 58.8 percent of original size [2021-05-01 06:53:12,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-05-01 06:53:12,738 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 83 [2021-05-01 06:53:12,748 INFO L142 QuantifierPusher]: treesize reduction 217, result has 53.5 percent of original size [2021-05-01 06:53:12,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-05-01 06:53:12,961 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2021-05-01 06:53:12,970 INFO L142 QuantifierPusher]: treesize reduction 246, result has 56.4 percent of original size [2021-05-01 06:53:12,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-05-01 06:53:13,221 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 97 [2021-05-01 06:53:13,230 INFO L142 QuantifierPusher]: treesize reduction 231, result has 53.0 percent of original size [2021-05-01 06:53:13,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 260 [2021-05-01 06:53:13,456 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 93 [2021-05-01 06:53:13,469 INFO L142 QuantifierPusher]: treesize reduction 256, result has 55.9 percent of original size [2021-05-01 06:53:13,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 325 [2021-05-01 06:53:13,748 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 97 [2021-05-01 06:53:13,762 INFO L142 QuantifierPusher]: treesize reduction 281, result has 56.9 percent of original size [2021-05-01 06:53:13,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 371 [2021-05-01 06:53:14,091 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 106 [2021-05-01 06:53:14,106 INFO L142 QuantifierPusher]: treesize reduction 266, result has 54.1 percent of original size [2021-05-01 06:53:14,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 313 [2021-05-01 06:53:14,368 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 93 [2021-05-01 06:53:14,381 INFO L142 QuantifierPusher]: treesize reduction 224, result has 58.7 percent of original size [2021-05-01 06:53:14,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-05-01 06:53:14,638 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 87 [2021-05-01 06:53:14,653 INFO L142 QuantifierPusher]: treesize reduction 242, result has 59.7 percent of original size [2021-05-01 06:53:14,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 359 [2021-05-01 06:53:15,037 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 95 [2021-05-01 06:53:15,050 INFO L142 QuantifierPusher]: treesize reduction 227, result has 57.0 percent of original size [2021-05-01 06:53:15,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-05-01 06:53:15,337 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 93 [2021-05-01 06:53:15,350 INFO L142 QuantifierPusher]: treesize reduction 198, result has 59.4 percent of original size [2021-05-01 06:53:15,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 290 [2021-05-01 06:53:15,615 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 94 [2021-05-01 06:53:15,629 INFO L142 QuantifierPusher]: treesize reduction 228, result has 58.2 percent of original size [2021-05-01 06:53:15,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 318 [2021-05-01 06:53:15,891 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 86 [2021-05-01 06:53:15,912 INFO L142 QuantifierPusher]: treesize reduction 235, result has 62.8 percent of original size [2021-05-01 06:53:15,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 396 [2021-05-01 06:53:16,242 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 95 [2021-05-01 06:53:16,264 INFO L142 QuantifierPusher]: treesize reduction 226, result has 59.7 percent of original size [2021-05-01 06:53:16,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 335 [2021-05-01 06:53:16,579 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 83 [2021-05-01 06:53:16,601 INFO L142 QuantifierPusher]: treesize reduction 208, result has 59.1 percent of original size [2021-05-01 06:53:16,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 301 [2021-05-01 06:53:16,868 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 91 [2021-05-01 06:53:16,884 INFO L142 QuantifierPusher]: treesize reduction 217, result has 61.3 percent of original size [2021-05-01 06:53:16,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 344 [2021-05-01 06:53:17,183 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93 [2021-05-01 06:53:17,198 INFO L142 QuantifierPusher]: treesize reduction 203, result has 58.5 percent of original size [2021-05-01 06:53:17,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 286 [2021-05-01 06:53:17,513 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 81 [2021-05-01 06:53:17,525 INFO L142 QuantifierPusher]: treesize reduction 250, result has 53.9 percent of original size [2021-05-01 06:53:17,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 292 [2021-05-01 06:53:17,810 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 75 [2021-05-01 06:53:17,826 INFO L142 QuantifierPusher]: treesize reduction 236, result has 61.6 percent of original size [2021-05-01 06:53:17,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 378 [2021-05-01 06:53:18,126 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 85 [2021-05-01 06:53:18,139 INFO L142 QuantifierPusher]: treesize reduction 227, result has 57.8 percent of original size [2021-05-01 06:53:18,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 311 [2021-05-01 06:53:18,439 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 71 [2021-05-01 06:53:18,452 INFO L142 QuantifierPusher]: treesize reduction 203, result has 60.6 percent of original size [2021-05-01 06:53:18,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 312 [2021-05-01 06:53:18,760 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 75 [2021-05-01 06:53:18,775 INFO L142 QuantifierPusher]: treesize reduction 216, result has 62.6 percent of original size [2021-05-01 06:53:18,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 362 [2021-05-01 06:53:19,149 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 85 [2021-05-01 06:53:19,161 INFO L142 QuantifierPusher]: treesize reduction 202, result has 59.9 percent of original size [2021-05-01 06:53:19,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 302 [2021-05-01 06:53:19,471 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 71 [2021-05-01 06:53:19,483 INFO L142 QuantifierPusher]: treesize reduction 170, result has 62.3 percent of original size [2021-05-01 06:53:19,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 281 [2021-05-01 06:53:19,819 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 71 [2021-05-01 06:53:19,834 INFO L142 QuantifierPusher]: treesize reduction 176, result has 63.3 percent of original size [2021-05-01 06:53:19,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 304 [2021-05-01 06:53:20,214 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 81 [2021-05-01 06:53:20,228 INFO L142 QuantifierPusher]: treesize reduction 159, result has 60.5 percent of original size [2021-05-01 06:53:20,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 244 [2021-05-01 06:53:20,541 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 66 [2021-05-01 06:53:20,552 INFO L142 QuantifierPusher]: treesize reduction 188, result has 54.7 percent of original size [2021-05-01 06:53:20,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 227 [2021-05-01 06:53:20,840 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 65 [2021-05-01 06:53:20,870 INFO L142 QuantifierPusher]: treesize reduction 315, result has 51.2 percent of original size [2021-05-01 06:53:20,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 331 [2021-05-01 06:53:21,260 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 82 [2021-05-01 06:53:21,271 INFO L142 QuantifierPusher]: treesize reduction 157, result has 63.6 percent of original size [2021-05-01 06:53:21,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 274 [2021-05-01 06:53:21,714 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 63 [2021-05-01 06:53:21,729 INFO L142 QuantifierPusher]: treesize reduction 229, result has 56.5 percent of original size [2021-05-01 06:53:21,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 298 [2021-05-01 06:53:22,146 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 70 [2021-05-01 06:53:22,163 INFO L142 QuantifierPusher]: treesize reduction 333, result has 44.3 percent of original size [2021-05-01 06:53:22,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 265 [2021-05-01 06:53:22,496 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 51 [2021-05-01 06:53:22,508 INFO L142 QuantifierPusher]: treesize reduction 240, result has 49.3 percent of original size [2021-05-01 06:53:22,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 233 [2021-05-01 06:53:22,523 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,532 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,541 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,548 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,559 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,568 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,578 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,589 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,601 INFO L142 QuantifierPusher]: treesize reduction 107, result has 56.5 percent of original size [2021-05-01 06:53:22,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 139 [2021-05-01 06:53:22,611 INFO L142 QuantifierPusher]: treesize reduction 156, result has 49.7 percent of original size [2021-05-01 06:53:22,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-05-01 06:53:22,623 INFO L142 QuantifierPusher]: treesize reduction 156, result has 50.2 percent of original size [2021-05-01 06:53:22,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 157 [2021-05-01 06:53:22,634 INFO L142 QuantifierPusher]: treesize reduction 156, result has 49.7 percent of original size [2021-05-01 06:53:22,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 154 [2021-05-01 06:53:22,647 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,661 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,675 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,687 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,700 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,711 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,723 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,735 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,746 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,757 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,769 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,780 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,791 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,803 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,806 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,814 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,825 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,837 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,849 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,859 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,872 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,885 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,896 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,923 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,935 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,946 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,959 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,970 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,982 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:22,994 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:22,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:23,006 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:23,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:23,017 INFO L142 QuantifierPusher]: treesize reduction 94, result has 63.6 percent of original size [2021-05-01 06:53:23,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 164 [2021-05-01 06:53:23,030 INFO L142 QuantifierPusher]: treesize reduction 131, result has 59.8 percent of original size [2021-05-01 06:53:23,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-05-01 06:53:23,045 INFO L142 QuantifierPusher]: treesize reduction 147, result has 57.8 percent of original size [2021-05-01 06:53:23,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-05-01 06:53:23,062 INFO L142 QuantifierPusher]: treesize reduction 152, result has 54.9 percent of original size [2021-05-01 06:53:23,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-05-01 06:53:23,076 INFO L142 QuantifierPusher]: treesize reduction 111, result has 54.3 percent of original size [2021-05-01 06:53:23,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 06:53:23,086 INFO L142 QuantifierPusher]: treesize reduction 111, result has 54.3 percent of original size [2021-05-01 06:53:23,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 06:53:23,097 INFO L142 QuantifierPusher]: treesize reduction 111, result has 54.3 percent of original size [2021-05-01 06:53:23,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 132 [2021-05-01 06:53:23,106 INFO L142 QuantifierPusher]: treesize reduction 156, result has 46.8 percent of original size [2021-05-01 06:53:23,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:53:23,117 INFO L142 QuantifierPusher]: treesize reduction 156, result has 46.8 percent of original size [2021-05-01 06:53:23,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:53:23,127 INFO L142 QuantifierPusher]: treesize reduction 156, result has 46.8 percent of original size [2021-05-01 06:53:23,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 137 [2021-05-01 06:53:23,140 INFO L142 QuantifierPusher]: treesize reduction 103, result has 55.8 percent of original size [2021-05-01 06:53:23,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 06:53:23,149 INFO L142 QuantifierPusher]: treesize reduction 103, result has 55.8 percent of original size [2021-05-01 06:53:23,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 06:53:23,160 INFO L142 QuantifierPusher]: treesize reduction 103, result has 55.8 percent of original size [2021-05-01 06:53:23,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 06:53:23,170 INFO L142 QuantifierPusher]: treesize reduction 103, result has 55.8 percent of original size [2021-05-01 06:53:23,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 06:53:23,181 INFO L142 QuantifierPusher]: treesize reduction 103, result has 55.8 percent of original size [2021-05-01 06:53:23,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 130 [2021-05-01 06:53:23,192 INFO L142 QuantifierPusher]: treesize reduction 129, result has 54.3 percent of original size [2021-05-01 06:53:23,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-05-01 06:53:23,204 INFO L142 QuantifierPusher]: treesize reduction 136, result has 54.5 percent of original size [2021-05-01 06:53:23,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 163 [2021-05-01 06:53:23,216 INFO L142 QuantifierPusher]: treesize reduction 123, result has 57.4 percent of original size [2021-05-01 06:53:23,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 166 [2021-05-01 06:53:23,228 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,236 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,241 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,247 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,253 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,261 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,268 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,274 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,281 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,287 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,294 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,304 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,310 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,317 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,323 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,331 INFO L142 QuantifierPusher]: treesize reduction 97, result has 50.5 percent of original size [2021-05-01 06:53:23,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 99 [2021-05-01 06:53:23,338 INFO L142 QuantifierPusher]: treesize reduction 97, result has 51.3 percent of original size [2021-05-01 06:53:23,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-05-01 06:53:23,345 INFO L142 QuantifierPusher]: treesize reduction 97, result has 51.3 percent of original size [2021-05-01 06:53:23,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 102 [2021-05-01 06:53:23,351 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,360 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,368 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,374 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,383 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,389 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,398 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,400 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,407 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,416 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,425 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,435 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,444 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,454 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,464 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,473 INFO L142 QuantifierPusher]: treesize reduction 91, result has 56.3 percent of original size [2021-05-01 06:53:23,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 117 [2021-05-01 06:53:23,483 INFO L142 QuantifierPusher]: treesize reduction 128, result has 54.1 percent of original size [2021-05-01 06:53:23,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 151 [2021-05-01 06:53:23,497 INFO L142 QuantifierPusher]: treesize reduction 136, result has 51.6 percent of original size [2021-05-01 06:53:23,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 145 [2021-05-01 06:53:23,510 INFO L142 QuantifierPusher]: treesize reduction 125, result has 50.4 percent of original size [2021-05-01 06:53:23,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 127 [2021-05-01 06:53:23,519 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,524 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,532 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,537 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,545 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,550 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,554 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,560 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,567 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,574 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,581 INFO L142 QuantifierPusher]: treesize reduction 76, result has 51.3 percent of original size [2021-05-01 06:53:23,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-05-01 06:53:23,590 INFO L142 QuantifierPusher]: treesize reduction 76, result has 52.2 percent of original size [2021-05-01 06:53:23,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:53:23,599 INFO L142 QuantifierPusher]: treesize reduction 76, result has 52.2 percent of original size [2021-05-01 06:53:23,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 83 [2021-05-01 06:53:23,608 INFO L142 QuantifierPusher]: treesize reduction 76, result has 53.7 percent of original size [2021-05-01 06:53:23,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:23,616 INFO L142 QuantifierPusher]: treesize reduction 76, result has 53.7 percent of original size [2021-05-01 06:53:23,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:23,624 INFO L142 QuantifierPusher]: treesize reduction 76, result has 53.7 percent of original size [2021-05-01 06:53:23,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:23,630 INFO L142 QuantifierPusher]: treesize reduction 76, result has 53.7 percent of original size [2021-05-01 06:53:23,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:23,638 INFO L142 QuantifierPusher]: treesize reduction 76, result has 53.7 percent of original size [2021-05-01 06:53:23,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 88 [2021-05-01 06:53:23,647 INFO L142 QuantifierPusher]: treesize reduction 102, result has 51.2 percent of original size [2021-05-01 06:53:23,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 06:53:23,657 INFO L142 QuantifierPusher]: treesize reduction 102, result has 51.2 percent of original size [2021-05-01 06:53:23,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 107 [2021-05-01 06:53:23,667 INFO L142 QuantifierPusher]: treesize reduction 76, result has 49.3 percent of original size [2021-05-01 06:53:23,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 74 [2021-05-01 06:53:23,671 INFO L142 QuantifierPusher]: treesize reduction 17, result has 5.6 percent of original size [2021-05-01 06:53:23,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:23,671 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:23,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-05-01 06:53:23,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-05-01 06:53:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-01 06:53:23,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-05-01 06:53:23,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-05-01 06:53:23,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-01 06:53:23,850 INFO L179 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2021-05-01 06:53:23,850 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546981258] [2021-05-01 06:53:23,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModulePreferences [546981258] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-01 06:53:23,851 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-01 06:53:23,851 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-05-01 06:53:23,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900763918] [2021-05-01 06:53:23,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-05-01 06:53:23,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-05-01 06:53:23,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-05-01 06:53:23,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1610, Unknown=0, NotChecked=0, Total=1722 [2021-05-01 06:53:23,852 INFO L87 Difference]: Start difference. First operand 875 states and 1121 transitions. Second operand has 42 states, 41 states have (on average 1.7317073170731707) internal successors, (71), 40 states have internal predecessors, (71), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-05-01 06:53:25,363 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2021-05-01 06:53:25,614 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2021-05-01 06:53:25,883 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 89 [2021-05-01 06:53:26,256 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2021-05-01 06:53:26,738 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 93 [2021-05-01 06:53:27,207 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2021-05-01 06:53:27,525 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 95 [2021-05-01 06:53:27,864 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2021-05-01 06:53:28,195 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2021-05-01 06:53:28,477 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 90 [2021-05-01 06:53:28,863 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-05-01 06:53:29,233 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 94 [2021-05-01 06:53:29,583 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-05-01 06:53:29,798 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 90 [2021-05-01 06:53:30,064 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2021-05-01 06:53:30,307 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 94 [2021-05-01 06:53:30,586 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2021-05-01 06:53:30,820 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94 [2021-05-01 06:53:31,205 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2021-05-01 06:53:31,573 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 107 [2021-05-01 06:53:31,895 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-05-01 06:53:32,240 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2021-05-01 06:53:32,637 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 101 [2021-05-01 06:53:33,399 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 92 [2021-05-01 06:53:33,900 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 94 [2021-05-01 06:53:34,408 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 96 [2021-05-01 06:53:35,022 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 99 [2021-05-01 06:53:35,639 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 108 [2021-05-01 06:53:36,428 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 100 [2021-05-01 06:53:36,942 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 99 [2021-05-01 06:53:37,581 WARN L205 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 98 [2021-05-01 06:53:38,109 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 96 [2021-05-01 06:53:38,708 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 96 [2021-05-01 06:53:39,349 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 99 [2021-05-01 06:53:39,887 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 101 [2021-05-01 06:53:40,575 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 95 [2021-05-01 06:53:41,118 WARN L205 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 97 [2021-05-01 06:53:41,724 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 99 [2021-05-01 06:53:42,300 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 101 [2021-05-01 06:53:42,975 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 99 [2021-05-01 06:53:43,644 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 100 [2021-05-01 06:53:44,275 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 98 [2021-05-01 06:53:44,882 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 114 [2021-05-01 06:53:45,827 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69