/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:10:25,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:10:25,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:10:25,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:10:25,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:10:25,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:10:25,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:10:25,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:10:25,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:10:25,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:10:25,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:10:25,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:10:25,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:10:25,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:10:25,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:10:25,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:10:25,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:10:25,526 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:10:25,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:10:25,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:10:25,534 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:10:25,546 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:10:25,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:10:25,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:10:25,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:10:25,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:10:25,549 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:10:25,549 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:10:25,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:10:25,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:10:25,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:10:25,550 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:10:25,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:10:25,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:10:25,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:10:25,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:10:25,551 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:10:25,552 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:10:25,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:10:25,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:10:25,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:10:25,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:10:25,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:10:25,553 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:10:25,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:10:26,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:10:26,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:10:26,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:10:26,025 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:10:26,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2021-02-23 23:10:26,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a01409c/251645915be34b2998f63b2c8ced75f4/FLAG6ad40c162 [2021-02-23 23:10:26,896 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:10:26,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2021-02-23 23:10:26,932 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a01409c/251645915be34b2998f63b2c8ced75f4/FLAG6ad40c162 [2021-02-23 23:10:27,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88a01409c/251645915be34b2998f63b2c8ced75f4 [2021-02-23 23:10:27,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:10:27,152 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:10:27,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:10:27,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:10:27,161 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:10:27,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:27,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70994b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27, skipping insertion in model container [2021-02-23 23:10:27,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:27,174 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:10:27,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:10:27,742 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c[18357,18370] [2021-02-23 23:10:27,780 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:10:27,793 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:10:27,878 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c[18357,18370] [2021-02-23 23:10:27,902 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:10:27,928 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:10:27,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27 WrapperNode [2021-02-23 23:10:27,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:10:27,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:10:27,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:10:27,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:10:27,948 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:27,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:27,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:27,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:28,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:28,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:28,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (1/1) ... [2021-02-23 23:10:28,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:10:28,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:10:28,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:10:28,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:10:28,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (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 [2021-02-23 23:10:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:10:28,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:10:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:10:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 23:10:28,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:10:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 23:10:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:10:28,176 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:10:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:10:28,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:10:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:10:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:10:28,178 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:10:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:10:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:10:28,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:10:28,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:10:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:10:28,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:10:29,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:10:29,867 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:10:29,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:10:29 BoogieIcfgContainer [2021-02-23 23:10:29,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:10:29,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:10:29,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:10:29,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:10:29,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:10:27" (1/3) ... [2021-02-23 23:10:29,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2805604d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:10:29, skipping insertion in model container [2021-02-23 23:10:29,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:10:27" (2/3) ... [2021-02-23 23:10:29,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2805604d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:10:29, skipping insertion in model container [2021-02-23 23:10:29,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:10:29" (3/3) ... [2021-02-23 23:10:29,887 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2021-02-23 23:10:29,895 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:10:29,902 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:10:29,924 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:10:29,964 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:10:29,964 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:10:29,964 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:10:29,965 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:10:29,965 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:10:29,965 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:10:29,965 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:10:29,965 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:10:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-23 23:10:30,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-02-23 23:10:30,049 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:30,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:30,051 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:30,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:30,059 INFO L82 PathProgramCache]: Analyzing trace with hash 967709547, now seen corresponding path program 1 times [2021-02-23 23:10:30,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:30,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038513849] [2021-02-23 23:10:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:30,615 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:10:30,617 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:10:30,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:30,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:30,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:30,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:30,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:30,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:30,766 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:10:30,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:30,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:30,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:30,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:30,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:30,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:30,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:10:30,878 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1038513849] [2021-02-23 23:10:30,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:10:30,881 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 23:10:30,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678198165] [2021-02-23 23:10:30,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 23:10:30,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:30,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 23:10:30,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:10:30,906 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-23 23:10:33,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:33,691 INFO L93 Difference]: Finished difference Result 1268 states and 1667 transitions. [2021-02-23 23:10:33,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:10:33,693 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2021-02-23 23:10:33,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:33,730 INFO L225 Difference]: With dead ends: 1268 [2021-02-23 23:10:33,731 INFO L226 Difference]: Without dead ends: 693 [2021-02-23 23:10:33,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:10:33,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-02-23 23:10:33,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 611. [2021-02-23 23:10:33,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-23 23:10:33,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 733 transitions. [2021-02-23 23:10:33,950 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 733 transitions. Word has length 139 [2021-02-23 23:10:33,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:33,954 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 733 transitions. [2021-02-23 23:10:33,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 23:10:33,955 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 733 transitions. [2021-02-23 23:10:33,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-02-23 23:10:33,970 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:33,971 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:33,972 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:10:33,972 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:33,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:33,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1075925333, now seen corresponding path program 1 times [2021-02-23 23:10:33,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:33,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899005501] [2021-02-23 23:10:33,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:34,369 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:34,371 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:34,387 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:34,389 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:34,391 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:34,393 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:34,415 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:34,418 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:34,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:34,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:34,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:34,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:34,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:34,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:34,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:34,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:34,556 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:10:34,559 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:10:34,571 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:10:34,572 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:10:34,586 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:10:34,589 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:10:34,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:34,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:34,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:34,649 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:34,650 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:34,651 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:10:34,652 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:10:34,670 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:10:34,671 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:10:34,692 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:10:34,694 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:10:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:10:34,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899005501] [2021-02-23 23:10:34,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:34,859 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:10:34,859 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573942892] [2021-02-23 23:10:34,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:10:34,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:34,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:10:34,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:10:34,863 INFO L87 Difference]: Start difference. First operand 611 states and 733 transitions. Second operand 11 states. [2021-02-23 23:10:35,074 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:10:35,578 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:35,710 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:10:36,256 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 23:10:41,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:41,293 INFO L93 Difference]: Finished difference Result 2543 states and 3430 transitions. [2021-02-23 23:10:41,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:10:41,293 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 160 [2021-02-23 23:10:41,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:41,317 INFO L225 Difference]: With dead ends: 2543 [2021-02-23 23:10:41,317 INFO L226 Difference]: Without dead ends: 1697 [2021-02-23 23:10:41,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:10:41,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1697 states. [2021-02-23 23:10:41,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1697 to 1192. [2021-02-23 23:10:41,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1192 states. [2021-02-23 23:10:41,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1192 states to 1192 states and 1452 transitions. [2021-02-23 23:10:41,622 INFO L78 Accepts]: Start accepts. Automaton has 1192 states and 1452 transitions. Word has length 160 [2021-02-23 23:10:41,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:41,623 INFO L480 AbstractCegarLoop]: Abstraction has 1192 states and 1452 transitions. [2021-02-23 23:10:41,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:10:41,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1192 states and 1452 transitions. [2021-02-23 23:10:41,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-02-23 23:10:41,630 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:41,630 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:41,631 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:10:41,631 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:41,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:41,632 INFO L82 PathProgramCache]: Analyzing trace with hash 357706410, now seen corresponding path program 1 times [2021-02-23 23:10:41,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:41,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1448146895] [2021-02-23 23:10:41,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:41,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:41,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:41,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:41,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:41,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:41,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:41,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:41,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:41,872 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:41,873 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:41,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:41,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:41,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:41,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:41,902 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,903 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:41,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:41,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:41,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:41,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:41,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:42,021 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:10:42,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1448146895] [2021-02-23 23:10:42,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:42,022 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:10:42,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779724829] [2021-02-23 23:10:42,023 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:10:42,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:42,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:10:42,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:10:42,025 INFO L87 Difference]: Start difference. First operand 1192 states and 1452 transitions. Second operand 10 states. [2021-02-23 23:10:42,427 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-02-23 23:10:42,747 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:43,397 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-23 23:10:43,529 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:48,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:48,672 INFO L93 Difference]: Finished difference Result 3261 states and 4081 transitions. [2021-02-23 23:10:48,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-23 23:10:48,678 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 186 [2021-02-23 23:10:48,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:48,701 INFO L225 Difference]: With dead ends: 3261 [2021-02-23 23:10:48,702 INFO L226 Difference]: Without dead ends: 2101 [2021-02-23 23:10:48,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=197, Invalid=673, Unknown=0, NotChecked=0, Total=870 [2021-02-23 23:10:48,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2101 states. [2021-02-23 23:10:49,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2101 to 1516. [2021-02-23 23:10:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2021-02-23 23:10:49,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1809 transitions. [2021-02-23 23:10:49,135 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1809 transitions. Word has length 186 [2021-02-23 23:10:49,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:49,136 INFO L480 AbstractCegarLoop]: Abstraction has 1516 states and 1809 transitions. [2021-02-23 23:10:49,136 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:10:49,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1809 transitions. [2021-02-23 23:10:49,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-02-23 23:10:49,144 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:49,144 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:49,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:10:49,145 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:49,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:49,146 INFO L82 PathProgramCache]: Analyzing trace with hash -211518794, now seen corresponding path program 1 times [2021-02-23 23:10:49,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:49,151 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855150333] [2021-02-23 23:10:49,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:49,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:49,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,408 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,409 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:49,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:49,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,446 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:49,456 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:49,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:49,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:49,578 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:10:49,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855150333] [2021-02-23 23:10:49,579 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:49,579 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:49,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001652745] [2021-02-23 23:10:49,580 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:49,580 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:49,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:49,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:49,581 INFO L87 Difference]: Start difference. First operand 1516 states and 1809 transitions. Second operand 8 states. [2021-02-23 23:10:50,706 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:53,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:53,596 INFO L93 Difference]: Finished difference Result 3821 states and 4582 transitions. [2021-02-23 23:10:53,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:10:53,597 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2021-02-23 23:10:53,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:53,615 INFO L225 Difference]: With dead ends: 3821 [2021-02-23 23:10:53,615 INFO L226 Difference]: Without dead ends: 2337 [2021-02-23 23:10:53,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:10:53,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2021-02-23 23:10:54,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2123. [2021-02-23 23:10:54,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2123 states. [2021-02-23 23:10:54,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 2464 transitions. [2021-02-23 23:10:54,138 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 2464 transitions. Word has length 199 [2021-02-23 23:10:54,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:54,138 INFO L480 AbstractCegarLoop]: Abstraction has 2123 states and 2464 transitions. [2021-02-23 23:10:54,139 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:10:54,139 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 2464 transitions. [2021-02-23 23:10:54,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-23 23:10:54,147 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:54,148 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:54,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:10:54,148 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:54,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:54,149 INFO L82 PathProgramCache]: Analyzing trace with hash -979240294, now seen corresponding path program 1 times [2021-02-23 23:10:54,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:54,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [403221262] [2021-02-23 23:10:54,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:54,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:54,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:54,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:54,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:54,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:54,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:54,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:54,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:54,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:54,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:54,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 63 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:10:54,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [403221262] [2021-02-23 23:10:54,500 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:54,500 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2021-02-23 23:10:54,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454597861] [2021-02-23 23:10:54,502 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 23:10:54,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:54,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 23:10:54,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:10:54,503 INFO L87 Difference]: Start difference. First operand 2123 states and 2464 transitions. Second operand 5 states. [2021-02-23 23:10:54,745 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:10:57,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:57,055 INFO L93 Difference]: Finished difference Result 4823 states and 5799 transitions. [2021-02-23 23:10:57,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 23:10:57,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2021-02-23 23:10:57,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:57,079 INFO L225 Difference]: With dead ends: 4823 [2021-02-23 23:10:57,080 INFO L226 Difference]: Without dead ends: 2732 [2021-02-23 23:10:57,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:10:57,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2732 states. [2021-02-23 23:10:57,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2732 to 2701. [2021-02-23 23:10:57,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2701 states. [2021-02-23 23:10:57,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2701 states to 2701 states and 3227 transitions. [2021-02-23 23:10:57,894 INFO L78 Accepts]: Start accepts. Automaton has 2701 states and 3227 transitions. Word has length 211 [2021-02-23 23:10:57,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:57,895 INFO L480 AbstractCegarLoop]: Abstraction has 2701 states and 3227 transitions. [2021-02-23 23:10:57,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 23:10:57,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2701 states and 3227 transitions. [2021-02-23 23:10:57,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-02-23 23:10:57,910 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:57,911 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:57,911 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:10:57,911 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:57,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:57,912 INFO L82 PathProgramCache]: Analyzing trace with hash 925039738, now seen corresponding path program 1 times [2021-02-23 23:10:57,912 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:57,912 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918051852] [2021-02-23 23:10:57,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:57,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:58,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:58,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-23 23:10:58,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:10:58,268 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-02-23 23:10:58,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918051852] [2021-02-23 23:10:58,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:58,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:58,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597812956] [2021-02-23 23:10:58,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:58,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:58,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:58,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:58,270 INFO L87 Difference]: Start difference. First operand 2701 states and 3227 transitions. Second operand 7 states. [2021-02-23 23:11:01,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:01,269 INFO L93 Difference]: Finished difference Result 6119 states and 7622 transitions. [2021-02-23 23:11:01,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:11:01,270 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2021-02-23 23:11:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:01,300 INFO L225 Difference]: With dead ends: 6119 [2021-02-23 23:11:01,301 INFO L226 Difference]: Without dead ends: 3450 [2021-02-23 23:11:01,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:11:01,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3450 states. [2021-02-23 23:11:02,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3450 to 3034. [2021-02-23 23:11:02,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3034 states. [2021-02-23 23:11:02,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3034 states to 3034 states and 3647 transitions. [2021-02-23 23:11:02,062 INFO L78 Accepts]: Start accepts. Automaton has 3034 states and 3647 transitions. Word has length 225 [2021-02-23 23:11:02,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:02,063 INFO L480 AbstractCegarLoop]: Abstraction has 3034 states and 3647 transitions. [2021-02-23 23:11:02,063 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:11:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3034 states and 3647 transitions. [2021-02-23 23:11:02,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-02-23 23:11:02,075 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:02,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:02,075 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:11:02,076 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:02,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:02,076 INFO L82 PathProgramCache]: Analyzing trace with hash 284058106, now seen corresponding path program 1 times [2021-02-23 23:11:02,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:02,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519485846] [2021-02-23 23:11:02,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:02,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:02,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:02,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:02,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:02,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:02,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:02,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:02,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:02,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:02,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:02,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:11:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:02,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:02,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-02-23 23:11:02,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:02,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:11:02,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-02-23 23:11:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:02,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:02,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 131 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-02-23 23:11:02,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519485846] [2021-02-23 23:11:02,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:02,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:11:02,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080442449] [2021-02-23 23:11:02,421 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:11:02,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:02,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:11:02,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:11:02,422 INFO L87 Difference]: Start difference. First operand 3034 states and 3647 transitions. Second operand 8 states. [2021-02-23 23:11:02,820 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:03,391 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:11:06,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:06,959 INFO L93 Difference]: Finished difference Result 7468 states and 9012 transitions. [2021-02-23 23:11:06,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 23:11:06,960 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 254 [2021-02-23 23:11:06,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:06,986 INFO L225 Difference]: With dead ends: 7468 [2021-02-23 23:11:06,986 INFO L226 Difference]: Without dead ends: 3906 [2021-02-23 23:11:07,000 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:11:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3906 states. [2021-02-23 23:11:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3906 to 3898. [2021-02-23 23:11:07,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3898 states. [2021-02-23 23:11:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3898 states to 3898 states and 4478 transitions. [2021-02-23 23:11:07,889 INFO L78 Accepts]: Start accepts. Automaton has 3898 states and 4478 transitions. Word has length 254 [2021-02-23 23:11:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:07,890 INFO L480 AbstractCegarLoop]: Abstraction has 3898 states and 4478 transitions. [2021-02-23 23:11:07,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:11:07,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3898 states and 4478 transitions. [2021-02-23 23:11:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-02-23 23:11:07,905 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:07,906 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:07,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:11:07,906 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:07,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:07,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1981363456, now seen corresponding path program 1 times [2021-02-23 23:11:07,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:07,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989569857] [2021-02-23 23:11:07,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:07,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:07,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:07,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:07,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:07,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:07,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:11:07,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:07,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,080 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:08,081 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:08,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:08,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 23:11:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:08,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:11:08,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-02-23 23:11:08,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,268 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 109 proven. 21 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-02-23 23:11:08,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989569857] [2021-02-23 23:11:08,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:08,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:11:08,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135860175] [2021-02-23 23:11:08,269 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:11:08,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:08,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:11:08,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:11:08,274 INFO L87 Difference]: Start difference. First operand 3898 states and 4478 transitions. Second operand 11 states. [2021-02-23 23:11:08,656 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-02-23 23:11:09,322 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:09,602 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:10,738 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:11:11,034 WARN L202 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-23 23:11:11,395 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:11:12,174 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:15,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:15,661 INFO L93 Difference]: Finished difference Result 10244 states and 11903 transitions. [2021-02-23 23:11:15,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-23 23:11:15,662 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 255 [2021-02-23 23:11:15,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:15,697 INFO L225 Difference]: With dead ends: 10244 [2021-02-23 23:11:15,698 INFO L226 Difference]: Without dead ends: 6527 [2021-02-23 23:11:15,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 23:11:15,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6527 states. [2021-02-23 23:11:16,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6527 to 4881. [2021-02-23 23:11:16,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4881 states. [2021-02-23 23:11:16,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4881 states to 4881 states and 5448 transitions. [2021-02-23 23:11:16,935 INFO L78 Accepts]: Start accepts. Automaton has 4881 states and 5448 transitions. Word has length 255 [2021-02-23 23:11:16,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:16,935 INFO L480 AbstractCegarLoop]: Abstraction has 4881 states and 5448 transitions. [2021-02-23 23:11:16,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:11:16,936 INFO L276 IsEmpty]: Start isEmpty. Operand 4881 states and 5448 transitions. [2021-02-23 23:11:16,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-02-23 23:11:16,952 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:16,952 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:16,952 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:11:16,952 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:16,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:16,953 INFO L82 PathProgramCache]: Analyzing trace with hash 448115286, now seen corresponding path program 1 times [2021-02-23 23:11:16,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:16,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148024111] [2021-02-23 23:11:16,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:17,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:17,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:17,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:17,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:11:17,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:17,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:17,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:17,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:17,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:17,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:17,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:17,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:11:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:17,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:17,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:17,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 23:11:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:17,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:17,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-02-23 23:11:17,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:17,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:17,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:17,411 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 153 proven. 32 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-02-23 23:11:17,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148024111] [2021-02-23 23:11:17,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:17,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:11:17,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816093260] [2021-02-23 23:11:17,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:11:17,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:17,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:11:17,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:11:17,414 INFO L87 Difference]: Start difference. First operand 4881 states and 5448 transitions. Second operand 10 states. [2021-02-23 23:11:17,845 WARN L202 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-02-23 23:11:19,053 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:19,647 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:20,336 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:21,036 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:21,999 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:22,688 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:24,013 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:25,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:25,781 INFO L93 Difference]: Finished difference Result 12101 states and 13562 transitions. [2021-02-23 23:11:25,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-23 23:11:25,782 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 280 [2021-02-23 23:11:25,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:25,818 INFO L225 Difference]: With dead ends: 12101 [2021-02-23 23:11:25,818 INFO L226 Difference]: Without dead ends: 7252 [2021-02-23 23:11:25,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=299, Invalid=1183, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 23:11:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7252 states. [2021-02-23 23:11:27,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7252 to 6339. [2021-02-23 23:11:27,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6339 states. [2021-02-23 23:11:27,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6339 states to 6339 states and 7070 transitions. [2021-02-23 23:11:27,251 INFO L78 Accepts]: Start accepts. Automaton has 6339 states and 7070 transitions. Word has length 280 [2021-02-23 23:11:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:27,252 INFO L480 AbstractCegarLoop]: Abstraction has 6339 states and 7070 transitions. [2021-02-23 23:11:27,252 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:11:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 6339 states and 7070 transitions. [2021-02-23 23:11:27,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-02-23 23:11:27,273 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:27,273 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:27,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:11:27,273 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:27,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:27,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1478911373, now seen corresponding path program 1 times [2021-02-23 23:11:27,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:27,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069828995] [2021-02-23 23:11:27,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:27,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:27,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:27,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:11:27,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:27,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 23:11:27,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:27,543 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:27,543 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:27,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 23:11:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:27,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:27,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-02-23 23:11:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:27,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:27,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:27,708 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 178 proven. 28 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-02-23 23:11:27,709 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069828995] [2021-02-23 23:11:27,709 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:27,709 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:11:27,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486675800] [2021-02-23 23:11:27,710 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:11:27,710 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:27,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:11:27,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:11:27,711 INFO L87 Difference]: Start difference. First operand 6339 states and 7070 transitions. Second operand 10 states. [2021-02-23 23:11:29,006 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-02-23 23:11:29,215 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:29,877 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:11:30,826 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:31,633 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:32,606 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:33,214 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:11:34,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:34,722 INFO L93 Difference]: Finished difference Result 13974 states and 15652 transitions. [2021-02-23 23:11:34,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 23:11:34,722 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 298 [2021-02-23 23:11:34,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:34,756 INFO L225 Difference]: With dead ends: 13974 [2021-02-23 23:11:34,757 INFO L226 Difference]: Without dead ends: 7518 [2021-02-23 23:11:34,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 23:11:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7518 states. [2021-02-23 23:11:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7518 to 7278. [2021-02-23 23:11:36,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7278 states. [2021-02-23 23:11:36,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7278 states to 7278 states and 7872 transitions. [2021-02-23 23:11:36,665 INFO L78 Accepts]: Start accepts. Automaton has 7278 states and 7872 transitions. Word has length 298 [2021-02-23 23:11:36,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:36,666 INFO L480 AbstractCegarLoop]: Abstraction has 7278 states and 7872 transitions. [2021-02-23 23:11:36,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:11:36,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7278 states and 7872 transitions. [2021-02-23 23:11:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-02-23 23:11:36,682 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:36,683 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:36,683 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:11:36,683 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:36,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:36,687 INFO L82 PathProgramCache]: Analyzing trace with hash 2103660321, now seen corresponding path program 1 times [2021-02-23 23:11:36,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:36,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [28528471] [2021-02-23 23:11:36,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:36,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:36,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:36,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:36,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,785 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:36,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:36,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:36,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:36,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:36,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:36,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:36,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:36,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:36,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:36,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:11:36,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:11:36,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-02-23 23:11:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:36,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:36,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 223 proven. 18 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-02-23 23:11:37,110 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [28528471] [2021-02-23 23:11:37,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:37,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:11:37,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112267156] [2021-02-23 23:11:37,111 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:11:37,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:37,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:11:37,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:11:37,112 INFO L87 Difference]: Start difference. First operand 7278 states and 7872 transitions. Second operand 8 states. [2021-02-23 23:11:37,426 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:11:38,456 WARN L202 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:39,702 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:11:41,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:41,421 INFO L93 Difference]: Finished difference Result 14734 states and 15935 transitions. [2021-02-23 23:11:41,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:11:41,427 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 338 [2021-02-23 23:11:41,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:41,464 INFO L225 Difference]: With dead ends: 14734 [2021-02-23 23:11:41,465 INFO L226 Difference]: Without dead ends: 7488 [2021-02-23 23:11:41,484 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:11:41,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7488 states. [2021-02-23 23:11:43,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7488 to 7288. [2021-02-23 23:11:43,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7288 states. [2021-02-23 23:11:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7288 states to 7288 states and 7865 transitions. [2021-02-23 23:11:43,516 INFO L78 Accepts]: Start accepts. Automaton has 7288 states and 7865 transitions. Word has length 338 [2021-02-23 23:11:43,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:43,516 INFO L480 AbstractCegarLoop]: Abstraction has 7288 states and 7865 transitions. [2021-02-23 23:11:43,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:11:43,517 INFO L276 IsEmpty]: Start isEmpty. Operand 7288 states and 7865 transitions. [2021-02-23 23:11:43,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2021-02-23 23:11:43,532 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:43,533 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:43,533 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 23:11:43,533 INFO L428 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:43,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:43,534 INFO L82 PathProgramCache]: Analyzing trace with hash -663900164, now seen corresponding path program 1 times [2021-02-23 23:11:43,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:43,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1089730108] [2021-02-23 23:11:43,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:43,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,660 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:11:43,661 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:11:43,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:43,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:43,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:43,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:43,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:43,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:43,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:43,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:43,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:43,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:43,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:43,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:43,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:43,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:44,045 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 210 proven. 40 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-02-23 23:11:44,046 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1089730108] [2021-02-23 23:11:44,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:44,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 23:11:44,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466745394] [2021-02-23 23:11:44,047 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 23:11:44,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:44,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 23:11:44,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 23:11:44,048 INFO L87 Difference]: Start difference. First operand 7288 states and 7865 transitions. Second operand 9 states. [2021-02-23 23:11:45,890 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:11:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:48,498 INFO L93 Difference]: Finished difference Result 15404 states and 16631 transitions. [2021-02-23 23:11:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 23:11:48,499 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 359 [2021-02-23 23:11:48,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:48,533 INFO L225 Difference]: With dead ends: 15404 [2021-02-23 23:11:48,533 INFO L226 Difference]: Without dead ends: 6612 [2021-02-23 23:11:48,553 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:11:48,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6612 states. [2021-02-23 23:11:50,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6612 to 6456. [2021-02-23 23:11:50,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6456 states. [2021-02-23 23:11:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6456 states to 6456 states and 6904 transitions. [2021-02-23 23:11:50,496 INFO L78 Accepts]: Start accepts. Automaton has 6456 states and 6904 transitions. Word has length 359 [2021-02-23 23:11:50,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:50,497 INFO L480 AbstractCegarLoop]: Abstraction has 6456 states and 6904 transitions. [2021-02-23 23:11:50,497 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 23:11:50,497 INFO L276 IsEmpty]: Start isEmpty. Operand 6456 states and 6904 transitions. [2021-02-23 23:11:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2021-02-23 23:11:50,510 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:50,511 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:11:50,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 23:11:50,511 INFO L428 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:50,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1931189128, now seen corresponding path program 1 times [2021-02-23 23:11:50,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:50,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [246953920] [2021-02-23 23:11:50,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:50,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,671 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,673 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,680 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,680 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:50,686 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,687 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,695 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,695 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,696 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-02-23 23:11:50,697 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-02-23 23:11:50,716 WARN L141 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size [2021-02-23 23:11:50,717 WARN L147 QuantifierPusher]: treesize reduction 2, result has 92.3 percent of original size 24 [2021-02-23 23:11:50,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:50,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:50,837 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,838 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:50,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:50,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:50,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:50,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:50,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:50,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:50,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:50,931 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:11:50,932 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:11:50,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,952 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,953 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-02-23 23:11:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:50,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:50,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:50,970 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:11:50,971 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:11:50,971 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:11:50,972 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:11:50,986 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-23 23:11:50,987 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-23 23:11:51,009 WARN L141 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-02-23 23:11:51,010 WARN L147 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size 16 [2021-02-23 23:11:51,029 WARN L141 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-02-23 23:11:51,030 WARN L147 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size 19 [2021-02-23 23:11:51,052 WARN L141 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size [2021-02-23 23:11:51,053 WARN L147 QuantifierPusher]: treesize reduction 8, result has 73.3 percent of original size 22 [2021-02-23 23:11:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 286 proven. 48 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2021-02-23 23:11:51,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [246953920] [2021-02-23 23:11:51,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:51,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 23:11:51,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675091447] [2021-02-23 23:11:51,621 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 23:11:51,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:51,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 23:11:51,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:11:51,622 INFO L87 Difference]: Start difference. First operand 6456 states and 6904 transitions. Second operand 14 states. [2021-02-23 23:11:51,812 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:53,062 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:11:54,481 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 23:11:56,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:56,105 INFO L93 Difference]: Finished difference Result 10323 states and 11057 transitions. [2021-02-23 23:11:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 23:11:56,111 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 396 [2021-02-23 23:11:56,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:56,119 INFO L225 Difference]: With dead ends: 10323 [2021-02-23 23:11:56,119 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:11:56,134 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:11:56,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:11:56,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:11:56,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:11:56,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:11:56,135 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 396 [2021-02-23 23:11:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:56,135 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:11:56,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 23:11:56,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:11:56,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:11:56,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 23:11:56,138 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:11:58,592 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-02-23 23:12:00,685 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 23:12:06,511 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-02-23 23:12:12,020 WARN L202 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:12:28,034 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 103 [2021-02-23 23:12:32,341 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 109 [2021-02-23 23:13:09,082 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:13:13,481 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:13:14,320 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:13:14,892 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:13:50,159 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 159 [2021-02-23 23:13:51,899 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 159 [2021-02-23 23:14:12,271 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:14:12,506 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:14:12,741 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:14:12,976 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:14:36,309 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 255 [2021-02-23 23:14:50,013 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:14:51,072 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:14:53,757 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:14:54,813 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:14:57,545 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:15:00,267 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:15:03,030 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:15:04,048 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:15:05,085 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:15:06,152 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:15:08,901 WARN L202 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:15:11,715 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:15:12,777 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:15:13,748 WARN L202 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 83 [2021-02-23 23:15:14,522 WARN L202 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 74 [2021-02-23 23:15:15,712 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2021-02-23 23:15:17,254 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 205 DAG size of output: 80 [2021-02-23 23:15:18,129 WARN L202 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2021-02-23 23:15:18,894 WARN L202 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 71 [2021-02-23 23:15:20,012 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 153 DAG size of output: 73 [2021-02-23 23:15:22,835 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:15:24,163 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:15:24,951 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 73 [2021-02-23 23:15:27,658 WARN L202 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:15:28,439 WARN L202 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 76 [2021-02-23 23:15:29,215 WARN L202 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 73 [2021-02-23 23:15:30,035 WARN L202 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:15:31,639 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-02-23 23:15:32,745 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2021-02-23 23:15:33,839 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:15:34,882 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:15:37,729 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:15:39,059 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 234 DAG size of output: 85 [2021-02-23 23:15:39,868 WARN L202 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2021-02-23 23:15:40,752 WARN L202 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2021-02-23 23:15:41,526 WARN L202 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 71 [2021-02-23 23:15:42,641 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 153 DAG size of output: 73 [2021-02-23 23:15:45,490 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:15:46,743 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 210 DAG size of output: 80 [2021-02-23 23:15:47,522 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 73 [2021-02-23 23:15:48,929 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2021-02-23 23:15:49,804 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2021-02-23 23:15:50,826 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 161 DAG size of output: 71 [2021-02-23 23:15:53,665 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:15:54,866 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 165 DAG size of output: 79 [2021-02-23 23:15:55,722 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2021-02-23 23:15:57,000 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2021-02-23 23:15:57,817 WARN L202 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 71 [2021-02-23 23:15:59,372 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 235 DAG size of output: 91 [2021-02-23 23:16:00,953 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 206 DAG size of output: 79 [2021-02-23 23:16:01,906 WARN L202 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2021-02-23 23:16:03,162 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 217 DAG size of output: 79 [2021-02-23 23:16:04,273 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:16:07,118 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:08,284 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2021-02-23 23:16:09,067 WARN L202 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 71 [2021-02-23 23:16:10,293 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 210 DAG size of output: 80 [2021-02-23 23:16:13,161 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:16,022 WARN L202 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:16,801 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 73 [2021-02-23 23:16:19,593 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:16:22,464 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:23,364 WARN L202 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 74 [2021-02-23 23:16:24,155 WARN L202 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 74 [2021-02-23 23:16:25,228 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:16:26,315 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:16:29,048 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:16:30,111 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:16:32,911 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:16:35,706 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:16:38,516 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:16:39,615 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:16:40,849 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2021-02-23 23:16:41,760 WARN L202 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 82 [2021-02-23 23:16:43,036 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 153 DAG size of output: 75 [2021-02-23 23:16:44,308 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 214 DAG size of output: 74 [2021-02-23 23:16:47,197 WARN L202 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:50,104 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:16:50,889 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 74 [2021-02-23 23:16:52,388 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2021-02-23 23:16:53,840 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 205 DAG size of output: 82 [2021-02-23 23:16:55,208 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:16:56,227 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 160 DAG size of output: 71 [2021-02-23 23:16:57,499 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 173 DAG size of output: 79 [2021-02-23 23:16:58,496 WARN L202 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2021-02-23 23:16:59,353 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2021-02-23 23:17:02,256 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:03,409 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 153 DAG size of output: 73 [2021-02-23 23:17:04,254 WARN L202 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2021-02-23 23:17:07,146 WARN L202 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:10,049 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:11,168 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:17:12,005 WARN L202 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2021-02-23 23:17:14,757 WARN L202 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:17:17,663 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:19,322 WARN L202 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 209 DAG size of output: 81 [2021-02-23 23:17:20,390 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:17:21,496 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:17:24,263 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:17:25,340 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:17:28,183 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:17:31,009 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:17:32,201 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 216 DAG size of output: 81 [2021-02-23 23:17:33,497 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 153 DAG size of output: 75 [2021-02-23 23:17:36,431 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:37,637 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2021-02-23 23:17:40,554 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:41,360 WARN L202 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 76 [2021-02-23 23:17:42,429 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 162 DAG size of output: 71 [2021-02-23 23:17:43,639 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 165 DAG size of output: 79 [2021-02-23 23:17:44,526 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2021-02-23 23:17:47,451 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:48,631 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:17:50,055 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 210 DAG size of output: 78 [2021-02-23 23:17:52,990 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:17:54,180 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2021-02-23 23:17:55,471 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 173 DAG size of output: 80 [2021-02-23 23:17:56,933 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 205 DAG size of output: 83 [2021-02-23 23:17:59,792 WARN L202 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:18:00,912 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:18:02,006 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:18:03,173 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 159 DAG size of output: 75 [2021-02-23 23:18:04,080 WARN L202 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2021-02-23 23:18:07,028 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:07,873 WARN L202 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2021-02-23 23:18:08,839 WARN L202 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2021-02-23 23:18:09,994 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 154 DAG size of output: 71 [2021-02-23 23:18:11,317 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:18:12,863 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 169 DAG size of output: 88 [2021-02-23 23:18:14,137 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:18:15,423 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:18:16,313 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 73 [2021-02-23 23:18:17,480 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2021-02-23 23:18:18,621 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:18:20,108 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 205 DAG size of output: 82 [2021-02-23 23:18:23,058 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:24,701 WARN L202 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 206 DAG size of output: 79 [2021-02-23 23:18:25,558 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2021-02-23 23:18:26,755 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2021-02-23 23:18:27,750 WARN L202 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2021-02-23 23:18:28,720 WARN L202 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2021-02-23 23:18:29,657 WARN L202 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2021-02-23 23:18:32,617 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:33,907 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:18:37,062 WARN L202 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:38,067 WARN L202 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2021-02-23 23:18:39,261 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:18:40,475 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:18:43,663 WARN L202 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:18:44,868 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:18:48,025 WARN L202 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:18:49,121 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2021-02-23 23:18:52,359 WARN L202 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:55,556 WARN L202 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:18:56,587 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2021-02-23 23:18:57,553 WARN L202 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 73 [2021-02-23 23:18:59,010 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 153 DAG size of output: 75 [2021-02-23 23:19:00,530 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 211 DAG size of output: 79 [2021-02-23 23:19:03,544 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:19:04,422 WARN L202 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2021-02-23 23:19:05,634 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:19:08,759 WARN L202 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:19:11,771 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:19:14,975 WARN L202 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:19:16,183 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:19,347 WARN L202 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:19:20,552 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:19:21,727 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:22,916 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:26,051 WARN L202 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:19:27,227 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:28,808 WARN L202 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 205 DAG size of output: 83 [2021-02-23 23:19:30,331 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 213 DAG size of output: 74 [2021-02-23 23:19:32,145 WARN L202 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 230 DAG size of output: 81 [2021-02-23 23:19:33,403 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 154 DAG size of output: 71 [2021-02-23 23:19:34,498 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2021-02-23 23:19:35,783 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:19:38,948 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:19:40,060 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 83 [2021-02-23 23:19:41,229 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:42,114 WARN L202 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 73 [2021-02-23 23:19:45,110 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:19:45,991 WARN L202 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2021-02-23 23:19:47,171 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:19:50,281 WARN L202 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:19:53,301 WARN L202 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:19:55,121 WARN L202 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-02-23 23:19:55,990 WARN L202 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 60 [2021-02-23 23:19:57,028 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2021-02-23 23:19:58,428 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 214 DAG size of output: 74 [2021-02-23 23:19:59,305 WARN L202 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 73 [2021-02-23 23:20:00,678 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:20:01,652 WARN L202 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:20:03,172 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2021-02-23 23:20:06,322 WARN L202 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:07,574 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:20:10,646 WARN L202 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:11,472 WARN L202 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 71 [2021-02-23 23:20:12,934 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 168 DAG size of output: 81 [2021-02-23 23:20:15,946 WARN L202 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:16,874 WARN L202 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2021-02-23 23:20:18,076 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 213 DAG size of output: 74 [2021-02-23 23:20:19,282 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2021-02-23 23:20:20,488 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:20:21,380 WARN L202 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2021-02-23 23:20:24,450 WARN L202 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:25,318 WARN L202 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2021-02-23 23:20:26,825 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2021-02-23 23:20:27,821 WARN L202 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 81 [2021-02-23 23:20:29,074 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2021-02-23 23:20:30,453 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 211 DAG size of output: 77 [2021-02-23 23:20:31,305 WARN L202 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2021-02-23 23:20:33,024 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-02-23 23:20:36,059 WARN L202 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:36,941 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 72 [2021-02-23 23:20:38,051 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 159 DAG size of output: 73 [2021-02-23 23:20:39,775 WARN L202 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-02-23 23:20:40,703 WARN L202 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 73 [2021-02-23 23:20:41,941 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2021-02-23 23:20:42,877 WARN L202 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2021-02-23 23:20:44,612 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 232 DAG size of output: 73 [2021-02-23 23:20:46,028 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2021-02-23 23:20:47,534 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2021-02-23 23:20:50,574 WARN L202 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:20:51,511 WARN L202 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2021-02-23 23:20:52,361 WARN L202 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 74 [2021-02-23 23:20:53,598 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 164 DAG size of output: 79 [2021-02-23 23:20:55,105 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 221 DAG size of output: 77 [2021-02-23 23:20:56,083 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2021-02-23 23:20:57,409 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:20:58,425 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 170 DAG size of output: 81 [2021-02-23 23:20:59,306 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2021-02-23 23:21:00,472 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:21:03,449 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:21:06,344 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:21:09,311 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:21:10,517 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:21:11,651 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:21:12,782 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 200 DAG size of output: 74 [2021-02-23 23:21:15,749 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2021-02-23 23:21:16,624 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 72 [2021-02-23 23:21:17,990 WARN L202 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 180 DAG size of output: 80 [2021-02-23 23:21:19,213 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:21:20,159 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2021-02-23 23:21:21,353 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2021-02-23 23:21:24,435 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:21:25,768 WARN L202 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:21:28,838 WARN L202 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:21:30,237 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 155 DAG size of output: 77 [2021-02-23 23:21:31,491 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:21:32,347 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 73 [2021-02-23 23:21:33,343 WARN L202 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 82 [2021-02-23 23:21:34,285 WARN L202 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 77 [2021-02-23 23:21:35,457 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2021-02-23 23:21:36,308 WARN L202 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2021-02-23 23:21:39,223 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:21:42,299 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:21:43,603 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:21:44,880 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 169 DAG size of output: 79 [2021-02-23 23:21:46,262 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 156 DAG size of output: 77 [2021-02-23 23:21:49,345 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:21:50,271 WARN L202 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 74 [2021-02-23 23:21:51,782 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:21:53,269 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:21:54,567 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:21:55,853 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 163 DAG size of output: 79 [2021-02-23 23:21:57,206 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 204 DAG size of output: 77 [2021-02-23 23:21:58,118 WARN L202 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:22:01,219 WARN L202 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:22:02,526 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2021-02-23 23:22:03,436 WARN L202 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2021-02-23 23:22:04,845 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2021-02-23 23:22:07,800 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:22:10,747 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 262 DAG size of output: 87 [2021-02-23 23:22:12,006 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2021-02-23 23:22:13,264 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:22:14,663 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 166 DAG size of output: 77 [2021-02-23 23:22:16,065 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 176 DAG size of output: 82 [2021-02-23 23:22:17,602 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 221 DAG size of output: 84 [2021-02-23 23:22:18,822 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 157 DAG size of output: 72 [2021-02-23 23:22:19,813 WARN L202 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2021-02-23 23:22:20,817 WARN L202 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:22:21,855 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 168 DAG size of output: 78 [2021-02-23 23:22:23,152 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:22:24,531 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 206 DAG size of output: 81 [2021-02-23 23:22:25,558 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2021-02-23 23:22:28,679 WARN L202 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:22:29,715 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 162 DAG size of output: 75 [2021-02-23 23:22:30,977 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:22:32,209 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:22:33,377 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 162 DAG size of output: 71 [2021-02-23 23:22:34,709 WARN L202 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 157 DAG size of output: 77 [2021-02-23 23:22:35,948 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2021-02-23 23:22:36,863 WARN L202 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2021-02-23 23:22:38,260 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2021-02-23 23:22:39,526 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2021-02-23 23:22:40,685 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 214 DAG size of output: 79 [2021-02-23 23:22:41,991 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2021-02-23 23:22:43,612 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:22:44,657 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 152 DAG size of output: 75 [2021-02-23 23:22:46,056 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2021-02-23 23:22:47,380 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2021-02-23 23:22:48,668 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 153 DAG size of output: 73 [2021-02-23 23:22:51,817 WARN L202 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:22:53,234 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 212 DAG size of output: 77 [2021-02-23 23:22:56,402 WARN L202 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:22:57,329 WARN L202 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 74 [2021-02-23 23:22:58,276 WARN L202 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 75 [2021-02-23 23:22:59,687 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2021-02-23 23:22:59,847 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 40 [2021-02-23 23:23:00,867 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 163 DAG size of output: 81 [2021-02-23 23:23:04,060 WARN L202 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:23:05,530 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 176 DAG size of output: 83 [2021-02-23 23:23:06,580 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 164 DAG size of output: 78 [2021-02-23 23:23:07,966 WARN L202 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2021-02-23 23:23:09,372 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2021-02-23 23:23:10,385 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:23:11,471 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 212 DAG size of output: 75 [2021-02-23 23:23:12,757 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2021-02-23 23:23:13,765 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2021-02-23 23:23:16,974 WARN L202 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 266 DAG size of output: 89 [2021-02-23 23:23:20,218 WARN L202 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 266 DAG size of output: 89