/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_label00.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:09:19,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:09:19,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:09:19,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:09:19,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:09:19,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:09:19,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:09:19,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:09:19,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:09:19,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:09:19,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:09:19,375 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:09:19,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:09:19,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:09:19,395 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:09:19,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:09:19,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:09:19,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:09:19,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:09:19,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:09:19,418 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 23:09:19,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:09:19,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:09:19,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:09:19,451 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:09:19,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:09:19,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:09:19,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:09:19,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:09:19,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:09:19,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:09:19,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:09:19,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:09:19,454 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:09:19,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:09:19,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:09:19,456 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:09:19,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:09:19,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:09:19,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:09:19,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:09:19,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:09:19,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:09:19,457 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:09:19,912 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:09:19,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:09:19,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:09:19,945 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:09:19,946 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:09:19,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2021-02-23 23:09:20,028 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1e7ca3a/d4ef05bfe6e54740b361ac3aae433ecf/FLAGf21f95a8d [2021-02-23 23:09:20,790 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:09:20,790 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label00.c [2021-02-23 23:09:20,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1e7ca3a/d4ef05bfe6e54740b361ac3aae433ecf/FLAGf21f95a8d [2021-02-23 23:09:21,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e1e7ca3a/d4ef05bfe6e54740b361ac3aae433ecf [2021-02-23 23:09:21,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:09:21,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:09:21,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:09:21,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:09:21,057 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:09:21,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,060 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea6580a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21, skipping insertion in model container [2021-02-23 23:09:21,060 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:09:21,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:09:21,613 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_label00.c[18976,18989] [2021-02-23 23:09:21,666 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:09:21,685 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:09:21,815 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_label00.c[18976,18989] [2021-02-23 23:09:21,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:09:21,846 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:09:21,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21 WrapperNode [2021-02-23 23:09:21,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:09:21,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:09:21,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:09:21,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:09:21,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (1/1) ... [2021-02-23 23:09:21,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:09:21,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:09:21,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:09:21,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:09:21,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (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 23:09:22,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:09:22,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:09:22,106 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:09:22,106 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 23:09:22,107 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:09:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 23:09:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:09:22,107 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:09:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:09:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:09:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:09:22,108 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:09:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:09:22,109 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:09:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:09:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:09:22,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:09:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:09:22,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:09:23,844 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:09:23,845 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:09:23,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:09:23 BoogieIcfgContainer [2021-02-23 23:09:23,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:09:23,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:09:23,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:09:23,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:09:23,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:09:21" (1/3) ... [2021-02-23 23:09:23,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aebf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:09:23, skipping insertion in model container [2021-02-23 23:09:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:09:21" (2/3) ... [2021-02-23 23:09:23,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45aebf3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:09:23, skipping insertion in model container [2021-02-23 23:09:23,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:09:23" (3/3) ... [2021-02-23 23:09:23,861 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label00.c [2021-02-23 23:09:23,873 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:09:23,879 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:09:23,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:09:23,920 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:09:23,920 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:09:23,920 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:09:23,920 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:09:23,921 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:09:23,921 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:09:23,921 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:09:23,921 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:09:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-23 23:09:23,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2021-02-23 23:09:23,980 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:23,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:09:23,981 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:23,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:23,989 INFO L82 PathProgramCache]: Analyzing trace with hash -591359378, now seen corresponding path program 1 times [2021-02-23 23:09:23,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:23,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712264901] [2021-02-23 23:09:24,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:24,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:24,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:24,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:24,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:24,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:24,855 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:09:24,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:24,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:24,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:24,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:24,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:25,030 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 23:09:25,031 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712264901] [2021-02-23 23:09:25,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:09:25,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:09:25,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525066606] [2021-02-23 23:09:25,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:09:25,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:25,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:09:25,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:09:25,064 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 4 states. [2021-02-23 23:09:27,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:27,744 INFO L93 Difference]: Finished difference Result 1349 states and 1747 transitions. [2021-02-23 23:09:27,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:09:27,747 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2021-02-23 23:09:27,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:27,771 INFO L225 Difference]: With dead ends: 1349 [2021-02-23 23:09:27,771 INFO L226 Difference]: Without dead ends: 749 [2021-02-23 23:09:27,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:09:27,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2021-02-23 23:09:28,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 672. [2021-02-23 23:09:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2021-02-23 23:09:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 788 transitions. [2021-02-23 23:09:28,055 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 788 transitions. Word has length 144 [2021-02-23 23:09:28,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:28,060 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 788 transitions. [2021-02-23 23:09:28,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:09:28,061 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 788 transitions. [2021-02-23 23:09:28,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-02-23 23:09:28,079 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:28,079 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, 1, 1, 1, 1, 1] [2021-02-23 23:09:28,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:09:28,082 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:28,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:28,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1594949842, now seen corresponding path program 1 times [2021-02-23 23:09:28,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:28,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73371988] [2021-02-23 23:09:28,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:28,323 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:28,324 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:28,335 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:28,336 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:28,339 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:28,340 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:28,357 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:28,360 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:28,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:28,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:28,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:28,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:28,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:28,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:28,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:28,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:09:28,495 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:09:28,496 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:09:28,507 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:09:28,508 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:09:28,522 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:09:28,523 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:09:28,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:28,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:28,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:28,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:28,561 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:28,562 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:28,563 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:09:28,564 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:09:28,581 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:09:28,582 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:09:28,602 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:09:28,603 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:09:28,772 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 23:09:28,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73371988] [2021-02-23 23:09:28,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:09:28,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:09:28,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591950306] [2021-02-23 23:09:28,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:09:28,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:28,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:09:28,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:09:28,777 INFO L87 Difference]: Start difference. First operand 672 states and 788 transitions. Second operand 11 states. [2021-02-23 23:09:28,971 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:09:29,457 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:09:29,629 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:09:30,088 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 23:09:34,529 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-23 23:09:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:35,174 INFO L93 Difference]: Finished difference Result 2529 states and 3315 transitions. [2021-02-23 23:09:35,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:09:35,174 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 165 [2021-02-23 23:09:35,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:35,188 INFO L225 Difference]: With dead ends: 2529 [2021-02-23 23:09:35,188 INFO L226 Difference]: Without dead ends: 1630 [2021-02-23 23:09:35,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:09:35,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2021-02-23 23:09:35,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1398. [2021-02-23 23:09:35,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1398 states. [2021-02-23 23:09:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 1645 transitions. [2021-02-23 23:09:35,490 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 1645 transitions. Word has length 165 [2021-02-23 23:09:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:35,490 INFO L480 AbstractCegarLoop]: Abstraction has 1398 states and 1645 transitions. [2021-02-23 23:09:35,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:09:35,490 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 1645 transitions. [2021-02-23 23:09:35,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-02-23 23:09:35,497 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:35,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:35,497 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:09:35,498 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:35,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:35,499 INFO L82 PathProgramCache]: Analyzing trace with hash 523656551, now seen corresponding path program 1 times [2021-02-23 23:09:35,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:35,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601003195] [2021-02-23 23:09:35,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:35,727 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:35,728 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:35,742 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:35,742 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:35,744 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:35,745 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:35,760 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:35,761 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:35,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:35,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:35,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:35,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:35,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:35,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:35,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:09:35,860 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:09:35,861 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:09:35,871 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:09:35,872 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:09:35,914 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:09:35,919 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:09:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:35,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:35,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:35,955 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:35,956 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:35,958 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-02-23 23:09:35,960 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size 16 [2021-02-23 23:09:35,983 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:09:35,984 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:09:36,004 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:09:36,005 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:09:36,196 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:09:36,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601003195] [2021-02-23 23:09:36,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:09:36,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:09:36,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029014569] [2021-02-23 23:09:36,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:09:36,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:36,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:09:36,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:09:36,199 INFO L87 Difference]: Start difference. First operand 1398 states and 1645 transitions. Second operand 11 states. [2021-02-23 23:09:36,902 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:09:41,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:41,916 INFO L93 Difference]: Finished difference Result 1878 states and 2167 transitions. [2021-02-23 23:09:41,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:09:41,916 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 178 [2021-02-23 23:09:41,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:41,927 INFO L225 Difference]: With dead ends: 1878 [2021-02-23 23:09:41,928 INFO L226 Difference]: Without dead ends: 1626 [2021-02-23 23:09:41,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:09:41,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2021-02-23 23:09:42,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1394. [2021-02-23 23:09:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1394 states. [2021-02-23 23:09:42,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1635 transitions. [2021-02-23 23:09:42,233 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1635 transitions. Word has length 178 [2021-02-23 23:09:42,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:42,234 INFO L480 AbstractCegarLoop]: Abstraction has 1394 states and 1635 transitions. [2021-02-23 23:09:42,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:09:42,234 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1635 transitions. [2021-02-23 23:09:42,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 23:09:42,241 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:42,241 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:42,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:09:42,242 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:42,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:42,242 INFO L82 PathProgramCache]: Analyzing trace with hash 411678626, now seen corresponding path program 1 times [2021-02-23 23:09:42,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:42,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129852280] [2021-02-23 23:09:42,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:42,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:42,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:42,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:42,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:42,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:42,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:42,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:42,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:42,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:09:42,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:09:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:42,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:42,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:42,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:09:42,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129852280] [2021-02-23 23:09:42,612 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:09:42,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:09:42,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449265] [2021-02-23 23:09:42,614 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:09:42,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:42,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:09:42,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:09:42,615 INFO L87 Difference]: Start difference. First operand 1394 states and 1635 transitions. Second operand 7 states. [2021-02-23 23:09:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:45,195 INFO L93 Difference]: Finished difference Result 3711 states and 4521 transitions. [2021-02-23 23:09:45,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:09:45,196 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2021-02-23 23:09:45,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:45,216 INFO L225 Difference]: With dead ends: 3711 [2021-02-23 23:09:45,216 INFO L226 Difference]: Without dead ends: 2349 [2021-02-23 23:09:45,223 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:09:45,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2349 states. [2021-02-23 23:09:45,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2349 to 2282. [2021-02-23 23:09:45,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2282 states. [2021-02-23 23:09:45,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 2717 transitions. [2021-02-23 23:09:45,712 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 2717 transitions. Word has length 182 [2021-02-23 23:09:45,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:45,713 INFO L480 AbstractCegarLoop]: Abstraction has 2282 states and 2717 transitions. [2021-02-23 23:09:45,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:09:45,713 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 2717 transitions. [2021-02-23 23:09:45,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-02-23 23:09:45,722 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:45,723 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:45,723 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:09:45,723 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash 2078296191, now seen corresponding path program 1 times [2021-02-23 23:09:45,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:45,725 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1328801176] [2021-02-23 23:09:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:45,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:45,847 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:09:45,848 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:09:45,855 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:09:45,856 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:09:45,857 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:09:45,858 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:09:45,859 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:45,860 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:45,875 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:45,878 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:45,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:45,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:45,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:45,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:45,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:45,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:45,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:09:45,980 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:09:45,981 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:09:45,992 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:09:45,993 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:09:46,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:46,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:46,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:46,018 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:09:46,018 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:09:46,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:09:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:46,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:46,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:46,034 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:09:46,035 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:09:46,036 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:46,037 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:46,052 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:09:46,053 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:09:46,070 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:09:46,071 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:09:46,093 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:09:46,094 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:09:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-02-23 23:09:46,344 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1328801176] [2021-02-23 23:09:46,344 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:09:46,345 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:09:46,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274848333] [2021-02-23 23:09:46,346 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:09:46,346 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:46,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:09:46,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:09:46,347 INFO L87 Difference]: Start difference. First operand 2282 states and 2717 transitions. Second operand 11 states. [2021-02-23 23:09:46,683 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:09:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:52,044 INFO L93 Difference]: Finished difference Result 5891 states and 7180 transitions. [2021-02-23 23:09:52,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:09:52,044 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 193 [2021-02-23 23:09:52,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:52,085 INFO L225 Difference]: With dead ends: 5891 [2021-02-23 23:09:52,086 INFO L226 Difference]: Without dead ends: 3660 [2021-02-23 23:09:52,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:09:52,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3660 states. [2021-02-23 23:09:52,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3660 to 3040. [2021-02-23 23:09:52,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3040 states. [2021-02-23 23:09:52,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 3577 transitions. [2021-02-23 23:09:52,949 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 3577 transitions. Word has length 193 [2021-02-23 23:09:52,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:52,950 INFO L480 AbstractCegarLoop]: Abstraction has 3040 states and 3577 transitions. [2021-02-23 23:09:52,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:09:52,950 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 3577 transitions. [2021-02-23 23:09:52,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-02-23 23:09:52,963 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:52,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:52,964 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:09:52,964 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:52,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:52,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1480113924, now seen corresponding path program 1 times [2021-02-23 23:09:52,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:52,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1127226810] [2021-02-23 23:09:52,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:53,117 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:53,118 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:53,128 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:53,134 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:53,136 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:53,137 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:53,157 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:09:53,158 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:09:53,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:53,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:53,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:53,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:53,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:53,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:53,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:53,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:09:53,292 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:09:53,293 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:09:53,309 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:09:53,310 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:09:53,328 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:09:53,329 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:09:53,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:53,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:53,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:53,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:53,386 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:09:53,387 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:09:53,388 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:09:53,388 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:09:53,414 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:09:53,415 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:09:53,442 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:09:53,442 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:09:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:09:53,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1127226810] [2021-02-23 23:09:53,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:09:53,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:09:53,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774329919] [2021-02-23 23:09:53,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:09:53,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:09:53,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:09:53,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:09:53,764 INFO L87 Difference]: Start difference. First operand 3040 states and 3577 transitions. Second operand 11 states. [2021-02-23 23:09:54,750 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:09:55,080 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:09:57,263 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 23:09:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:09:59,090 INFO L93 Difference]: Finished difference Result 6350 states and 7455 transitions. [2021-02-23 23:09:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:09:59,091 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2021-02-23 23:09:59,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:09:59,117 INFO L225 Difference]: With dead ends: 6350 [2021-02-23 23:09:59,117 INFO L226 Difference]: Without dead ends: 3225 [2021-02-23 23:09:59,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:09:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2021-02-23 23:09:59,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3028. [2021-02-23 23:09:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3028 states. [2021-02-23 23:09:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3028 states to 3028 states and 3528 transitions. [2021-02-23 23:09:59,794 INFO L78 Accepts]: Start accepts. Automaton has 3028 states and 3528 transitions. Word has length 202 [2021-02-23 23:09:59,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:09:59,795 INFO L480 AbstractCegarLoop]: Abstraction has 3028 states and 3528 transitions. [2021-02-23 23:09:59,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:09:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3028 states and 3528 transitions. [2021-02-23 23:09:59,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-23 23:09:59,806 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:09:59,807 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:09:59,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:09:59,807 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:09:59,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:09:59,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1001809406, now seen corresponding path program 1 times [2021-02-23 23:09:59,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:09:59,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [949494300] [2021-02-23 23:09:59,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:09:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:59,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:59,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:59,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:09:59,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:09:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:59,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:09:59,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:09:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:09:59,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:09:59,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:09:59,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:09:59,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:00,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:00,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:00,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:00,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:00,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-23 23:10:00,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:00,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:00,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:00,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:00,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:00,153 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 64 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-23 23:10:00,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [949494300] [2021-02-23 23:10:00,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:00,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 23:10:00,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514070436] [2021-02-23 23:10:00,155 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 23:10:00,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:00,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 23:10:00,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 23:10:00,156 INFO L87 Difference]: Start difference. First operand 3028 states and 3528 transitions. Second operand 9 states. [2021-02-23 23:10:06,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:06,253 INFO L93 Difference]: Finished difference Result 7194 states and 8379 transitions. [2021-02-23 23:10:06,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 23:10:06,254 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 211 [2021-02-23 23:10:06,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:06,286 INFO L225 Difference]: With dead ends: 7194 [2021-02-23 23:10:06,286 INFO L226 Difference]: Without dead ends: 4339 [2021-02-23 23:10:06,297 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2021-02-23 23:10:06,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4339 states. [2021-02-23 23:10:07,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4339 to 3911. [2021-02-23 23:10:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3911 states. [2021-02-23 23:10:07,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3911 states to 3911 states and 4512 transitions. [2021-02-23 23:10:07,147 INFO L78 Accepts]: Start accepts. Automaton has 3911 states and 4512 transitions. Word has length 211 [2021-02-23 23:10:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:07,148 INFO L480 AbstractCegarLoop]: Abstraction has 3911 states and 4512 transitions. [2021-02-23 23:10:07,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 23:10:07,148 INFO L276 IsEmpty]: Start isEmpty. Operand 3911 states and 4512 transitions. [2021-02-23 23:10:07,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-02-23 23:10:07,161 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:07,161 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:07,162 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:10:07,162 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:07,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:07,163 INFO L82 PathProgramCache]: Analyzing trace with hash 58691454, now seen corresponding path program 1 times [2021-02-23 23:10:07,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:07,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140609162] [2021-02-23 23:10:07,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:07,215 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:07,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:07,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:07,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:07,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:07,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:07,320 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:07,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:07,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:07,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-23 23:10:07,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:07,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:07,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:07,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:07,451 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-02-23 23:10:07,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140609162] [2021-02-23 23:10:07,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:07,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:07,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468408159] [2021-02-23 23:10:07,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:07,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:07,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:07,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:07,456 INFO L87 Difference]: Start difference. First operand 3911 states and 4512 transitions. Second operand 7 states. [2021-02-23 23:10:07,938 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:10:10,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:10,982 INFO L93 Difference]: Finished difference Result 8713 states and 10214 transitions. [2021-02-23 23:10:10,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:10:10,983 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 216 [2021-02-23 23:10:10,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:11,015 INFO L225 Difference]: With dead ends: 8713 [2021-02-23 23:10:11,016 INFO L226 Difference]: Without dead ends: 4975 [2021-02-23 23:10:11,029 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 23:10:11,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4975 states. [2021-02-23 23:10:12,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4975 to 4882. [2021-02-23 23:10:12,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4882 states. [2021-02-23 23:10:12,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4882 states to 4882 states and 5700 transitions. [2021-02-23 23:10:12,185 INFO L78 Accepts]: Start accepts. Automaton has 4882 states and 5700 transitions. Word has length 216 [2021-02-23 23:10:12,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:12,185 INFO L480 AbstractCegarLoop]: Abstraction has 4882 states and 5700 transitions. [2021-02-23 23:10:12,185 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:12,186 INFO L276 IsEmpty]: Start isEmpty. Operand 4882 states and 5700 transitions. [2021-02-23 23:10:12,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2021-02-23 23:10:12,203 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:12,203 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:12,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:10:12,204 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:12,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:12,204 INFO L82 PathProgramCache]: Analyzing trace with hash -434981482, now seen corresponding path program 1 times [2021-02-23 23:10:12,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:12,205 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125729976] [2021-02-23 23:10:12,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:12,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:12,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:12,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:12,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:12,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:12,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:12,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:12,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:12,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:12,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:12,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:12,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:12,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:12,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:12,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:12,429 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:12,430 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:12,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-02-23 23:10:12,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:12,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:12,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:12,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:12,571 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 74 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-02-23 23:10:12,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125729976] [2021-02-23 23:10:12,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:12,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:10:12,572 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229519166] [2021-02-23 23:10:12,573 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:10:12,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:12,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:10:12,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:10:12,574 INFO L87 Difference]: Start difference. First operand 4882 states and 5700 transitions. Second operand 10 states. [2021-02-23 23:10:12,799 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:13,055 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2021-02-23 23:10:13,797 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:14,211 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:14,838 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 23:10:15,456 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2021-02-23 23:10:16,059 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:17,011 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:17,547 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:20,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:20,334 INFO L93 Difference]: Finished difference Result 11665 states and 13749 transitions. [2021-02-23 23:10:20,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-02-23 23:10:20,336 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 218 [2021-02-23 23:10:20,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:20,377 INFO L225 Difference]: With dead ends: 11665 [2021-02-23 23:10:20,377 INFO L226 Difference]: Without dead ends: 6956 [2021-02-23 23:10:20,395 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 23:10:20,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6956 states. [2021-02-23 23:10:21,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6956 to 6257. [2021-02-23 23:10:21,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6257 states. [2021-02-23 23:10:21,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6257 states to 6257 states and 7320 transitions. [2021-02-23 23:10:21,583 INFO L78 Accepts]: Start accepts. Automaton has 6257 states and 7320 transitions. Word has length 218 [2021-02-23 23:10:21,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:21,584 INFO L480 AbstractCegarLoop]: Abstraction has 6257 states and 7320 transitions. [2021-02-23 23:10:21,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:10:21,584 INFO L276 IsEmpty]: Start isEmpty. Operand 6257 states and 7320 transitions. [2021-02-23 23:10:21,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2021-02-23 23:10:21,602 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:21,602 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:21,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:10:21,602 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:21,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:21,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1875282567, now seen corresponding path program 1 times [2021-02-23 23:10:21,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:21,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179765677] [2021-02-23 23:10:21,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:21,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:21,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:21,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:21,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:21,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:21,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:21,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:21,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:21,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:21,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:21,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:21,779 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:21,779 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:21,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:21,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:21,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:21,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:10:21,888 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 76 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:10:21,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179765677] [2021-02-23 23:10:21,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:21,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:21,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130675994] [2021-02-23 23:10:21,890 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:21,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:21,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:21,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:21,891 INFO L87 Difference]: Start difference. First operand 6257 states and 7320 transitions. Second operand 8 states. [2021-02-23 23:10:22,068 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:23,504 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:26,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:26,063 INFO L93 Difference]: Finished difference Result 12738 states and 14951 transitions. [2021-02-23 23:10:26,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:10:26,064 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 228 [2021-02-23 23:10:26,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:26,095 INFO L225 Difference]: With dead ends: 12738 [2021-02-23 23:10:26,095 INFO L226 Difference]: Without dead ends: 6654 [2021-02-23 23:10:26,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:10:26,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2021-02-23 23:10:27,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 6267. [2021-02-23 23:10:27,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6267 states. [2021-02-23 23:10:27,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 7306 transitions. [2021-02-23 23:10:27,175 INFO L78 Accepts]: Start accepts. Automaton has 6267 states and 7306 transitions. Word has length 228 [2021-02-23 23:10:27,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:27,175 INFO L480 AbstractCegarLoop]: Abstraction has 6267 states and 7306 transitions. [2021-02-23 23:10:27,175 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:10:27,175 INFO L276 IsEmpty]: Start isEmpty. Operand 6267 states and 7306 transitions. [2021-02-23 23:10:27,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-02-23 23:10:27,190 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:27,190 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:10:27,190 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:10:27,190 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:27,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:27,191 INFO L82 PathProgramCache]: Analyzing trace with hash -809506171, now seen corresponding path program 1 times [2021-02-23 23:10:27,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:27,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1611556840] [2021-02-23 23:10:27,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:27,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:27,312 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,313 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,319 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,319 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,320 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,320 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,321 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,322 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,322 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:27,323 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:27,338 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:27,339 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:27,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:27,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:27,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:27,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:27,441 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:10:27,442 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:10:27,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:27,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:27,464 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,465 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-02-23 23:10:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:27,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:27,488 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,489 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-02-23 23:10:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:27,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:27,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:27,502 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:27,502 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:27,503 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:10:27,503 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:10:27,516 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-23 23:10:27,517 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-23 23:10:27,534 WARN L141 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size [2021-02-23 23:10:27,534 WARN L147 QuantifierPusher]: treesize reduction 6, result has 72.7 percent of original size 16 [2021-02-23 23:10:27,552 WARN L141 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size [2021-02-23 23:10:27,553 WARN L147 QuantifierPusher]: treesize reduction 6, result has 76.0 percent of original size 19 [2021-02-23 23:10:27,574 WARN L141 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size [2021-02-23 23:10:27,575 WARN L147 QuantifierPusher]: treesize reduction 6, result has 78.6 percent of original size 22 [2021-02-23 23:10:27,817 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 82 proven. 3 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-02-23 23:10:27,817 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1611556840] [2021-02-23 23:10:27,817 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:27,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:10:27,818 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491772083] [2021-02-23 23:10:27,818 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:10:27,818 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:27,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:10:27,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:10:27,819 INFO L87 Difference]: Start difference. First operand 6267 states and 7306 transitions. Second operand 11 states. [2021-02-23 23:10:28,919 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:10:29,128 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:30,999 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:33,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:33,348 INFO L93 Difference]: Finished difference Result 13474 states and 15874 transitions. [2021-02-23 23:10:33,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 23:10:33,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 245 [2021-02-23 23:10:33,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:33,384 INFO L225 Difference]: With dead ends: 13474 [2021-02-23 23:10:33,384 INFO L226 Difference]: Without dead ends: 6777 [2021-02-23 23:10:33,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:10:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6777 states. [2021-02-23 23:10:34,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6777 to 6184. [2021-02-23 23:10:34,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6184 states. [2021-02-23 23:10:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6184 states to 6184 states and 7018 transitions. [2021-02-23 23:10:34,772 INFO L78 Accepts]: Start accepts. Automaton has 6184 states and 7018 transitions. Word has length 245 [2021-02-23 23:10:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:34,772 INFO L480 AbstractCegarLoop]: Abstraction has 6184 states and 7018 transitions. [2021-02-23 23:10:34,772 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:10:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 6184 states and 7018 transitions. [2021-02-23 23:10:34,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-02-23 23:10:34,782 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:34,782 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:34,782 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 23:10:34,782 INFO L428 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:34,783 INFO L82 PathProgramCache]: Analyzing trace with hash -1768362656, now seen corresponding path program 1 times [2021-02-23 23:10:34,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:34,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1571357115] [2021-02-23 23:10:34,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:34,900 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:10:34,901 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:10:34,908 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:10:34,909 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:10:34,909 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:34,910 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:34,920 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:34,921 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:34,937 WARN L141 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size [2021-02-23 23:10:34,937 WARN L147 QuantifierPusher]: treesize reduction 2, result has 91.7 percent of original size 22 [2021-02-23 23:10:34,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:34,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:35,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:35,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:35,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:35,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:35,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:35,035 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:10:35,035 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:10:35,045 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:10:35,046 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:10:35,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:35,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:35,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:35,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:35,097 WARN L141 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size [2021-02-23 23:10:35,098 WARN L147 QuantifierPusher]: treesize reduction 2, result has 83.3 percent of original size 10 [2021-02-23 23:10:35,098 WARN L141 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size [2021-02-23 23:10:35,099 WARN L147 QuantifierPusher]: treesize reduction 4, result has 76.5 percent of original size 13 [2021-02-23 23:10:35,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:10:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:35,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:35,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:35,118 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:10:35,119 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:10:35,120 WARN L141 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size [2021-02-23 23:10:35,120 WARN L147 QuantifierPusher]: treesize reduction 4, result has 80.0 percent of original size 16 [2021-02-23 23:10:35,137 WARN L141 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size [2021-02-23 23:10:35,138 WARN L147 QuantifierPusher]: treesize reduction 4, result has 82.6 percent of original size 19 [2021-02-23 23:10:35,158 WARN L141 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size [2021-02-23 23:10:35,159 WARN L147 QuantifierPusher]: treesize reduction 4, result has 84.6 percent of original size 22 [2021-02-23 23:10:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-23 23:10:35,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1571357115] [2021-02-23 23:10:35,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:35,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2021-02-23 23:10:35,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118742176] [2021-02-23 23:10:35,405 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 23:10:35,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:35,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 23:10:35,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:10:35,406 INFO L87 Difference]: Start difference. First operand 6184 states and 7018 transitions. Second operand 11 states. [2021-02-23 23:10:36,559 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:37,526 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 23:10:38,227 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-23 23:10:38,729 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-23 23:10:43,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:43,049 INFO L93 Difference]: Finished difference Result 14191 states and 16056 transitions. [2021-02-23 23:10:43,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 23:10:43,050 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 248 [2021-02-23 23:10:43,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:43,087 INFO L225 Difference]: With dead ends: 14191 [2021-02-23 23:10:43,087 INFO L226 Difference]: Without dead ends: 7497 [2021-02-23 23:10:43,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=118, Invalid=188, Unknown=0, NotChecked=0, Total=306 [2021-02-23 23:10:43,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7497 states. [2021-02-23 23:10:44,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7497 to 6346. [2021-02-23 23:10:44,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6346 states. [2021-02-23 23:10:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6346 states to 6346 states and 7104 transitions. [2021-02-23 23:10:44,350 INFO L78 Accepts]: Start accepts. Automaton has 6346 states and 7104 transitions. Word has length 248 [2021-02-23 23:10:44,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:44,350 INFO L480 AbstractCegarLoop]: Abstraction has 6346 states and 7104 transitions. [2021-02-23 23:10:44,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 23:10:44,351 INFO L276 IsEmpty]: Start isEmpty. Operand 6346 states and 7104 transitions. [2021-02-23 23:10:44,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2021-02-23 23:10:44,361 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:44,362 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:10:44,362 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 23:10:44,362 INFO L428 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:44,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:44,363 INFO L82 PathProgramCache]: Analyzing trace with hash 360796876, now seen corresponding path program 1 times [2021-02-23 23:10:44,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:44,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1344164448] [2021-02-23 23:10:44,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:44,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,429 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:44,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:44,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:44,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:44,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:44,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:44,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:44,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 23:10:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:44,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:44,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:44,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 23:10:44,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:44,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:44,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:44,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:44,650 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-02-23 23:10:44,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1344164448] [2021-02-23 23:10:44,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:44,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:10:44,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164732568] [2021-02-23 23:10:44,652 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:10:44,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:44,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:10:44,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:10:44,654 INFO L87 Difference]: Start difference. First operand 6346 states and 7104 transitions. Second operand 7 states. [2021-02-23 23:10:48,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:48,212 INFO L93 Difference]: Finished difference Result 12718 states and 14211 transitions. [2021-02-23 23:10:48,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:10:48,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 264 [2021-02-23 23:10:48,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:48,238 INFO L225 Difference]: With dead ends: 12718 [2021-02-23 23:10:48,239 INFO L226 Difference]: Without dead ends: 6291 [2021-02-23 23:10:48,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 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 23:10:48,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6291 states. [2021-02-23 23:10:49,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6291 to 6247. [2021-02-23 23:10:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6247 states. [2021-02-23 23:10:49,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6247 states to 6247 states and 6680 transitions. [2021-02-23 23:10:49,399 INFO L78 Accepts]: Start accepts. Automaton has 6247 states and 6680 transitions. Word has length 264 [2021-02-23 23:10:49,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:49,400 INFO L480 AbstractCegarLoop]: Abstraction has 6247 states and 6680 transitions. [2021-02-23 23:10:49,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:10:49,400 INFO L276 IsEmpty]: Start isEmpty. Operand 6247 states and 6680 transitions. [2021-02-23 23:10:49,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-02-23 23:10:49,409 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:49,409 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-23 23:10:49,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 23:10:49,409 INFO L428 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:49,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash -977119456, now seen corresponding path program 1 times [2021-02-23 23:10:49,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:49,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045892006] [2021-02-23 23:10:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [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 8 [2021-02-23 23:10:49,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:49,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:49,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-02-23 23:10:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:49,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:49,658 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:10:49,658 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:10:49,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-02-23 23:10:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:49,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:49,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:49,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:49,776 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 128 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2021-02-23 23:10:49,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045892006] [2021-02-23 23:10:49,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:49,777 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:10:49,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924354668] [2021-02-23 23:10:49,778 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:10:49,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:49,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:10:49,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:10:49,778 INFO L87 Difference]: Start difference. First operand 6247 states and 6680 transitions. Second operand 10 states. [2021-02-23 23:10:50,127 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:50,754 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:10:51,259 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:10:51,822 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-02-23 23:10:52,064 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-02-23 23:10:54,860 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:10:56,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:10:56,667 INFO L93 Difference]: Finished difference Result 12683 states and 13585 transitions. [2021-02-23 23:10:56,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 23:10:56,668 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 265 [2021-02-23 23:10:56,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:10:56,695 INFO L225 Difference]: With dead ends: 12683 [2021-02-23 23:10:56,695 INFO L226 Difference]: Without dead ends: 6609 [2021-02-23 23:10:56,705 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 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 23:10:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6609 states. [2021-02-23 23:10:57,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6609 to 6102. [2021-02-23 23:10:57,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6102 states. [2021-02-23 23:10:57,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 6489 transitions. [2021-02-23 23:10:57,853 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 6489 transitions. Word has length 265 [2021-02-23 23:10:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:10:57,854 INFO L480 AbstractCegarLoop]: Abstraction has 6102 states and 6489 transitions. [2021-02-23 23:10:57,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:10:57,854 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 6489 transitions. [2021-02-23 23:10:57,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-02-23 23:10:57,861 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:10:57,861 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-02-23 23:10:57,861 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 23:10:57,861 INFO L428 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:10:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:10:57,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1313021106, now seen corresponding path program 1 times [2021-02-23 23:10:57,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:10:57,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740235104] [2021-02-23 23:10:57,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:10:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:57,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:57,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:57,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:57,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:57,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:57,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:10:58,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:10:58,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:10:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:10:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:10:58,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:10:58,145 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 3 [2021-02-23 23:10:58,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:58,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:10:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:10:58,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:10:58,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:10:58,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:10:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-02-23 23:10:58,277 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740235104] [2021-02-23 23:10:58,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:10:58,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:10:58,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128709798] [2021-02-23 23:10:58,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:10:58,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:10:58,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:10:58,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:10:58,279 INFO L87 Difference]: Start difference. First operand 6102 states and 6489 transitions. Second operand 8 states. [2021-02-23 23:10:59,641 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-02-23 23:11:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:02,070 INFO L93 Difference]: Finished difference Result 12132 states and 12902 transitions. [2021-02-23 23:11:02,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-23 23:11:02,071 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 305 [2021-02-23 23:11:02,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:02,092 INFO L225 Difference]: With dead ends: 12132 [2021-02-23 23:11:02,092 INFO L226 Difference]: Without dead ends: 6203 [2021-02-23 23:11:02,104 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 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 23:11:02,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6203 states. [2021-02-23 23:11:03,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6203 to 5836. [2021-02-23 23:11:03,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5836 states. [2021-02-23 23:11:03,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5836 states to 5836 states and 6181 transitions. [2021-02-23 23:11:03,291 INFO L78 Accepts]: Start accepts. Automaton has 5836 states and 6181 transitions. Word has length 305 [2021-02-23 23:11:03,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:03,292 INFO L480 AbstractCegarLoop]: Abstraction has 5836 states and 6181 transitions. [2021-02-23 23:11:03,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:11:03,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5836 states and 6181 transitions. [2021-02-23 23:11:03,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-02-23 23:11:03,298 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:03,298 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-23 23:11:03,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 23:11:03,299 INFO L428 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:03,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:03,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1816917897, now seen corresponding path program 1 times [2021-02-23 23:11:03,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:03,299 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1039101090] [2021-02-23 23:11:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:03,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:03,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:03,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:03,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:03,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:03,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:03,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:03,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:03,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:03,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 150 proven. 32 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-02-23 23:11:03,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1039101090] [2021-02-23 23:11:03,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:03,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:11:03,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674983770] [2021-02-23 23:11:03,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:11:03,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:03,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:11:03,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:11:03,725 INFO L87 Difference]: Start difference. First operand 5836 states and 6181 transitions. Second operand 7 states. [2021-02-23 23:11:06,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:06,759 INFO L93 Difference]: Finished difference Result 11357 states and 12039 transitions. [2021-02-23 23:11:06,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 23:11:06,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 326 [2021-02-23 23:11:06,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:06,782 INFO L225 Difference]: With dead ends: 11357 [2021-02-23 23:11:06,782 INFO L226 Difference]: Without dead ends: 5694 [2021-02-23 23:11:06,792 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:11:06,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5694 states. [2021-02-23 23:11:07,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5694 to 5659. [2021-02-23 23:11:07,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5659 states. [2021-02-23 23:11:07,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5659 states to 5659 states and 5969 transitions. [2021-02-23 23:11:07,938 INFO L78 Accepts]: Start accepts. Automaton has 5659 states and 5969 transitions. Word has length 326 [2021-02-23 23:11:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:07,939 INFO L480 AbstractCegarLoop]: Abstraction has 5659 states and 5969 transitions. [2021-02-23 23:11:07,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:11:07,939 INFO L276 IsEmpty]: Start isEmpty. Operand 5659 states and 5969 transitions. [2021-02-23 23:11:07,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-02-23 23:11:07,949 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:11:07,949 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, 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, 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] [2021-02-23 23:11:07,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 23:11:07,949 INFO L428 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:11:07,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:11:07,950 INFO L82 PathProgramCache]: Analyzing trace with hash 731098781, now seen corresponding path program 1 times [2021-02-23 23:11:07,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:11:07,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1100600767] [2021-02-23 23:11:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:11:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:11:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-02-23 23:11:08,161 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 23:11:08,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-02-23 23:11:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-02-23 23:11:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-02-23 23:11:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:11:08,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-02-23 23:11:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:11:08,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-02-23 23:11:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:11:08,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:11:08,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:11:08,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:11:08,405 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 393 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2021-02-23 23:11:08,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1100600767] [2021-02-23 23:11:08,405 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:11:08,405 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:11:08,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463532917] [2021-02-23 23:11:08,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:11:08,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:11:08,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:11:08,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:11:08,407 INFO L87 Difference]: Start difference. First operand 5659 states and 5969 transitions. Second operand 7 states. [2021-02-23 23:11:11,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:11:11,792 INFO L93 Difference]: Finished difference Result 11140 states and 11796 transitions. [2021-02-23 23:11:11,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:11:11,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 400 [2021-02-23 23:11:11,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:11:11,798 INFO L225 Difference]: With dead ends: 11140 [2021-02-23 23:11:11,798 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:11:11,819 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 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 23:11:11,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:11:11,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:11:11,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:11:11,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:11:11,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 400 [2021-02-23 23:11:11,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:11:11,820 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:11:11,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:11:11,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:11:11,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:11:11,821 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 23:11:11,823 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:11:12,263 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:11:12,543 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 23:11:28,258 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 149 [2021-02-23 23:11:33,649 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 106 [2021-02-23 23:11:34,145 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 108 [2021-02-23 23:12:12,152 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 106 [2021-02-23 23:12:12,652 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 108 [2021-02-23 23:13:23,459 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 153 [2021-02-23 23:13:23,803 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2021-02-23 23:13:23,984 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2021-02-23 23:13:25,011 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 153 [2021-02-23 23:13:25,322 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2021-02-23 23:13:25,489 WARN L202 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 151 [2021-02-23 23:14:28,289 WARN L202 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:29,083 WARN L202 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:31,963 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:14:32,767 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:35,489 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:14:38,207 WARN L202 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:14:40,953 WARN L202 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:14:41,754 WARN L202 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:42,550 WARN L202 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:43,354 WARN L202 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:14:46,092 WARN L202 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:14:48,946 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:14:49,655 WARN L202 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2021-02-23 23:14:50,599 WARN L202 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:14:51,258 WARN L202 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:14:52,360 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2021-02-23 23:14:54,232 WARN L202 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2021-02-23 23:14:55,100 WARN L202 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 71 [2021-02-23 23:14:55,981 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:14:56,658 WARN L202 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2021-02-23 23:14:59,541 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:00,844 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 134 DAG size of output: 71 [2021-02-23 23:15:01,543 WARN L202 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:15:04,453 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:05,132 WARN L202 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 66 [2021-02-23 23:15:05,811 WARN L202 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 66 [2021-02-23 23:15:06,641 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 73 [2021-02-23 23:15:07,134 WARN L202 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-02-23 23:15:08,193 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 126 DAG size of output: 70 [2021-02-23 23:15:09,016 WARN L202 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:15:09,832 WARN L202 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:15:12,711 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:14,213 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 198 DAG size of output: 74 [2021-02-23 23:15:14,978 WARN L202 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-02-23 23:15:15,757 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 66 [2021-02-23 23:15:16,423 WARN L202 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 64 [2021-02-23 23:15:17,119 WARN L202 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:15:20,022 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:20,902 WARN L202 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 74 [2021-02-23 23:15:21,577 WARN L202 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:15:22,675 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2021-02-23 23:15:23,516 WARN L202 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 70 [2021-02-23 23:15:24,408 WARN L202 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:15:27,309 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:28,433 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 134 DAG size of output: 70 [2021-02-23 23:15:29,222 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 67 [2021-02-23 23:15:30,024 WARN L202 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-02-23 23:15:30,783 WARN L202 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2021-02-23 23:15:32,001 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 191 DAG size of output: 74 [2021-02-23 23:15:33,234 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2021-02-23 23:15:34,090 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-02-23 23:15:35,131 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 172 DAG size of output: 69 [2021-02-23 23:15:35,848 WARN L202 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2021-02-23 23:15:38,748 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:39,526 WARN L202 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 69 [2021-02-23 23:15:40,187 WARN L202 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 64 [2021-02-23 23:15:41,237 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 179 DAG size of output: 75 [2021-02-23 23:15:44,149 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:47,054 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:47,740 WARN L202 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 66 [2021-02-23 23:15:50,729 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:53,634 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:15:54,874 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 125 DAG size of output: 71 [2021-02-23 23:15:55,558 WARN L202 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2021-02-23 23:15:56,633 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:15:57,702 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:16:00,612 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:01,425 WARN L202 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:16:04,190 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:16:06,963 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:16:09,739 WARN L202 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:16:10,560 WARN L202 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:16:11,700 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 135 DAG size of output: 69 [2021-02-23 23:16:12,689 WARN L202 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2021-02-23 23:16:13,523 WARN L202 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 70 [2021-02-23 23:16:14,520 WARN L202 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2021-02-23 23:16:17,436 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:20,361 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:21,044 WARN L202 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 64 [2021-02-23 23:16:22,042 WARN L202 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 71 [2021-02-23 23:16:23,747 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 185 DAG size of output: 78 [2021-02-23 23:16:25,249 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 137 DAG size of output: 80 [2021-02-23 23:16:25,943 WARN L202 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 64 [2021-02-23 23:16:27,040 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 144 DAG size of output: 68 [2021-02-23 23:16:28,084 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2021-02-23 23:16:29,196 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 137 DAG size of output: 73 [2021-02-23 23:16:32,120 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:32,829 WARN L202 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:16:33,946 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 136 DAG size of output: 73 [2021-02-23 23:16:36,872 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:39,795 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:40,521 WARN L202 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2021-02-23 23:16:41,288 WARN L202 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:16:44,211 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:47,139 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:48,536 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 176 DAG size of output: 70 [2021-02-23 23:16:49,354 WARN L202 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:16:50,439 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:16:53,374 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:16:54,452 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:16:57,263 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:17:00,063 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:17:01,259 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 182 DAG size of output: 73 [2021-02-23 23:17:02,347 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 129 DAG size of output: 68 [2021-02-23 23:17:05,291 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:06,113 WARN L202 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 67 [2021-02-23 23:17:09,062 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:09,755 WARN L202 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2021-02-23 23:17:10,679 WARN L202 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2021-02-23 23:17:11,831 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 132 DAG size of output: 68 [2021-02-23 23:17:12,609 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2021-02-23 23:17:15,555 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:16,333 WARN L202 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 68 [2021-02-23 23:17:17,454 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 171 DAG size of output: 70 [2021-02-23 23:17:20,404 WARN L202 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:21,454 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:17:22,274 WARN L202 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2021-02-23 23:17:23,877 WARN L202 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 184 DAG size of output: 81 [2021-02-23 23:17:26,696 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:17:27,521 WARN L202 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:17:28,344 WARN L202 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:17:29,172 WARN L202 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:17:29,951 WARN L202 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 67 [2021-02-23 23:17:32,910 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:33,844 WARN L202 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:17:34,837 WARN L202 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2021-02-23 23:17:35,558 WARN L202 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2021-02-23 23:17:36,383 WARN L202 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 67 [2021-02-23 23:17:37,670 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 141 DAG size of output: 75 [2021-02-23 23:17:38,719 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 173 DAG size of output: 70 [2021-02-23 23:17:39,646 WARN L202 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 74 [2021-02-23 23:17:40,429 WARN L202 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2021-02-23 23:17:41,147 WARN L202 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 65 [2021-02-23 23:17:41,861 WARN L202 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-02-23 23:17:43,602 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 185 DAG size of output: 78 [2021-02-23 23:17:46,578 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:47,821 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2021-02-23 23:17:48,861 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 133 DAG size of output: 67 [2021-02-23 23:17:49,820 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:17:50,603 WARN L202 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2021-02-23 23:17:51,602 WARN L202 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 69 [2021-02-23 23:17:52,566 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-02-23 23:17:55,531 WARN L202 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:17:56,467 WARN L202 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2021-02-23 23:17:59,439 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:00,224 WARN L202 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2021-02-23 23:18:01,316 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:18:02,144 WARN L202 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:18:04,969 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:06,062 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:18:08,892 WARN L202 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:09,726 WARN L202 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 70 [2021-02-23 23:18:12,696 WARN L202 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:15,672 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:16,663 WARN L202 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-02-23 23:18:17,452 WARN L202 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2021-02-23 23:18:18,253 WARN L202 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2021-02-23 23:18:19,408 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:18:22,389 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:23,100 WARN L202 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:18:24,198 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:18:27,040 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:30,019 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:32,861 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:33,696 WARN L202 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:18:36,535 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:37,372 WARN L202 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:18:38,034 WARN L202 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2021-02-23 23:18:38,869 WARN L202 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:18:39,528 WARN L202 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2021-02-23 23:18:42,382 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:18:43,220 WARN L202 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:18:44,838 WARN L202 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 184 DAG size of output: 81 [2021-02-23 23:18:45,865 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2021-02-23 23:18:47,163 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 197 DAG size of output: 73 [2021-02-23 23:18:47,896 WARN L202 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 68 [2021-02-23 23:18:49,380 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 191 DAG size of output: 70 [2021-02-23 23:18:50,168 WARN L202 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-02-23 23:18:53,156 WARN L202 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:53,874 WARN L202 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:18:54,974 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:18:55,683 WARN L202 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:18:58,677 WARN L202 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:18:59,393 WARN L202 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:19:00,228 WARN L202 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:19:03,074 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:19:06,071 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:06,589 WARN L202 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-02-23 23:19:07,289 WARN L202 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 55 [2021-02-23 23:19:08,153 WARN L202 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2021-02-23 23:19:09,186 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2021-02-23 23:19:09,896 WARN L202 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:19:10,958 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 173 DAG size of output: 70 [2021-02-23 23:19:11,751 WARN L202 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2021-02-23 23:19:12,589 WARN L202 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 69 [2021-02-23 23:19:15,584 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:16,371 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2021-02-23 23:19:19,372 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:20,090 WARN L202 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:19:21,397 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 136 DAG size of output: 71 [2021-02-23 23:19:24,399 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:25,274 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 66 [2021-02-23 23:19:26,313 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:19:27,055 WARN L202 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 67 [2021-02-23 23:19:27,804 WARN L202 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 67 [2021-02-23 23:19:28,903 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:19:31,906 WARN L202 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:32,862 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2021-02-23 23:19:34,005 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 180 DAG size of output: 71 [2021-02-23 23:19:35,353 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 134 DAG size of output: 72 [2021-02-23 23:19:36,332 WARN L202 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2021-02-23 23:19:37,256 WARN L202 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 70 [2021-02-23 23:19:37,971 WARN L202 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:19:38,493 WARN L202 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-02-23 23:19:41,515 WARN L202 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:42,462 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:19:43,189 WARN L202 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:19:43,714 WARN L202 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-02-23 23:19:44,519 WARN L202 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 68 [2021-02-23 23:19:45,279 WARN L202 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 69 [2021-02-23 23:19:46,164 WARN L202 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 67 [2021-02-23 23:19:46,691 WARN L202 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 57 [2021-02-23 23:19:47,537 WARN L202 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-02-23 23:19:48,783 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 137 DAG size of output: 69 [2021-02-23 23:19:51,811 WARN L202 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:19:52,687 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 68 [2021-02-23 23:19:53,413 WARN L202 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:19:54,198 WARN L202 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 69 [2021-02-23 23:19:55,719 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 187 DAG size of output: 72 [2021-02-23 23:19:56,787 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 175 DAG size of output: 70 [2021-02-23 23:19:57,748 WARN L202 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2021-02-23 23:19:59,197 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 136 DAG size of output: 75 [2021-02-23 23:20:00,010 WARN L202 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-02-23 23:20:00,857 WARN L202 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:20:03,752 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:20:06,830 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:09,726 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:20:10,615 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:20:11,463 WARN L202 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:20:12,586 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:20:15,481 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2021-02-23 23:20:16,208 WARN L202 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:20:17,449 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 162 DAG size of output: 73 [2021-02-23 23:20:18,216 WARN L202 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 70 [2021-02-23 23:20:19,144 WARN L202 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 68 [2021-02-23 23:20:20,112 WARN L202 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:20:23,150 WARN L202 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:24,240 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 173 DAG size of output: 70 [2021-02-23 23:20:27,289 WARN L202 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:28,810 WARN L202 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 135 DAG size of output: 76 [2021-02-23 23:20:29,924 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2021-02-23 23:20:30,649 WARN L202 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 66 [2021-02-23 23:20:31,390 WARN L202 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:20:32,600 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 146 DAG size of output: 69 [2021-02-23 23:20:33,725 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 69 [2021-02-23 23:20:34,453 WARN L202 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:20:37,495 WARN L202 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:40,647 WARN L202 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:41,654 WARN L202 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2021-02-23 23:20:42,693 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 125 DAG size of output: 64 [2021-02-23 23:20:43,598 WARN L202 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 73 [2021-02-23 23:20:46,660 WARN L202 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:47,720 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 172 DAG size of output: 73 [2021-02-23 23:20:48,552 WARN L202 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 67 [2021-02-23 23:20:50,106 WARN L202 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 138 DAG size of output: 79 [2021-02-23 23:20:51,118 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2021-02-23 23:20:51,972 WARN L202 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 67 [2021-02-23 23:20:52,810 WARN L202 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:20:53,649 WARN L202 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 68 [2021-02-23 23:20:56,708 WARN L202 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:20:57,729 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:20:58,754 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2021-02-23 23:20:59,837 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 123 DAG size of output: 64 [2021-02-23 23:21:02,912 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:05,973 WARN L202 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:07,074 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:21:07,848 WARN L202 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 70 [2021-02-23 23:21:09,025 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 142 DAG size of output: 69 [2021-02-23 23:21:10,194 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 144 DAG size of output: 68 [2021-02-23 23:21:11,587 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2021-02-23 23:21:12,585 WARN L202 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2021-02-23 23:21:13,518 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 70 [2021-02-23 23:21:14,374 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:21:15,751 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 163 DAG size of output: 72 [2021-02-23 23:21:16,864 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2021-02-23 23:21:17,960 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 183 DAG size of output: 72 [2021-02-23 23:21:19,116 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 132 DAG size of output: 65 [2021-02-23 23:21:22,192 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:23,432 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 134 DAG size of output: 72 [2021-02-23 23:21:24,184 WARN L202 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:21:24,934 WARN L202 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 67 [2021-02-23 23:21:25,907 WARN L202 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 64 [2021-02-23 23:21:26,925 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2021-02-23 23:21:27,698 WARN L202 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 69 [2021-02-23 23:21:28,739 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 121 DAG size of output: 65 [2021-02-23 23:21:29,755 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2021-02-23 23:21:30,510 WARN L202 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:21:31,618 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:21:32,437 WARN L202 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 65 [2021-02-23 23:21:33,266 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2021-02-23 23:21:34,426 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 124 DAG size of output: 72 [2021-02-23 23:21:35,447 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2021-02-23 23:21:36,481 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 123 DAG size of output: 67 [2021-02-23 23:21:37,242 WARN L202 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 64 [2021-02-23 23:21:40,321 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:41,430 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 173 DAG size of output: 69 [2021-02-23 23:21:44,527 WARN L202 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:45,519 WARN L202 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 66 [2021-02-23 23:21:46,633 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 128 DAG size of output: 68 [2021-02-23 23:21:47,651 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 120 DAG size of output: 65 [2021-02-23 23:21:47,786 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 37 [2021-02-23 23:21:48,768 WARN L202 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 73 [2021-02-23 23:21:51,846 WARN L202 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:21:52,720 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2021-02-23 23:21:53,986 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 138 DAG size of output: 69 [2021-02-23 23:21:54,999 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 125 DAG size of output: 66 [2021-02-23 23:21:56,136 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 135 DAG size of output: 67 [2021-02-23 23:21:57,311 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 126 DAG size of output: 66 [2021-02-23 23:21:58,137 WARN L202 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 68 [2021-02-23 23:21:59,278 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 126 DAG size of output: 70 [2021-02-23 23:22:00,189 WARN L202 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 69 [2021-02-23 23:22:03,296 WARN L202 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:22:06,396 WARN L202 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2021-02-23 23:22:07,316 WARN L202 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 71 [2021-02-23 23:22:08,178 WARN L202 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 70 [2021-02-23 23:22:09,051 WARN L202 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68 [2021-02-23 23:22:09,922 WARN L202 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 68