/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:59:49,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:59:49,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:59:49,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 18:59:49,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 18:59:49,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 18:59:49,315 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 18:59:49,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 18:59:49,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 18:59:49,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 18:59:49,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 18:59:49,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 18:59:49,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:59:49,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:59:49,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:59:49,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:59:49,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:59:49,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:59:49,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:59:49,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:59:49,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:59:49,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:59:49,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:59:49,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:59:49,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:59:49,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:59:49,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:59:49,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:59:49,396 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 18:59:49,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:59:49,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:59:49,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:59:49,434 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:59:49,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:59:49,438 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:59:49,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:59:49,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:59:49,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:59:49,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:59:49,441 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:59:49,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:59:49,442 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:59:49,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:59:49,443 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:59:49,443 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:59:49,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:59:49,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:59:49,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:59:49,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:59:49,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:59:49,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:59:49,445 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:59:49,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:59:49,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:59:49,916 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:59:49,918 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:59:49,920 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:59:49,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-02-23 18:59:50,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49622ae18/bdf88c13ae744c8da5880db39f3c07e5/FLAG1365b95f5 [2021-02-23 18:59:50,812 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:59:50,812 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2021-02-23 18:59:50,822 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49622ae18/bdf88c13ae744c8da5880db39f3c07e5/FLAG1365b95f5 [2021-02-23 18:59:51,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49622ae18/bdf88c13ae744c8da5880db39f3c07e5 [2021-02-23 18:59:51,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:59:51,216 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:59:51,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:59:51,219 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:59:51,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:59:51,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@272edc1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51, skipping insertion in model container [2021-02-23 18:59:51,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:59:51,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:59:51,492 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-02-23 18:59:51,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:59:51,539 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:59:51,559 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006_variant.i[895,908] [2021-02-23 18:59:51,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:59:51,589 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:59:51,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51 WrapperNode [2021-02-23 18:59:51,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:59:51,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:59:51,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:59:51,593 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:59:51,613 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,625 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (1/1) ... [2021-02-23 18:59:51,645 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:59:51,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:59:51,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:59:51,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:59:51,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (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 18:59:51,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:59:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:59:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:59:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-23 18:59:51,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:59:51,778 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:59:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:59:51,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:59:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:59:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:59:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:59:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:59:51,779 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-23 18:59:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:59:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 18:59:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:59:51,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:59:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:59:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:59:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:59:51,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:59:51,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:59:52,341 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:59:52,342 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 18:59:52,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:59:52 BoogieIcfgContainer [2021-02-23 18:59:52,346 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:59:52,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:59:52,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:59:52,358 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:59:52,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:59:51" (1/3) ... [2021-02-23 18:59:52,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724dd199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:59:52, skipping insertion in model container [2021-02-23 18:59:52,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:59:51" (2/3) ... [2021-02-23 18:59:52,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@724dd199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:59:52, skipping insertion in model container [2021-02-23 18:59:52,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:59:52" (3/3) ... [2021-02-23 18:59:52,363 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2021-02-23 18:59:52,373 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:59:52,379 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:59:52,408 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:59:52,451 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:59:52,451 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:59:52,452 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:59:52,452 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:59:52,452 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:59:52,452 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:59:52,452 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:59:52,452 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:59:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2021-02-23 18:59:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-23 18:59:52,496 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:52,497 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] [2021-02-23 18:59:52,498 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:52,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:52,509 INFO L82 PathProgramCache]: Analyzing trace with hash 855051478, now seen corresponding path program 1 times [2021-02-23 18:59:52,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:52,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [60274058] [2021-02-23 18:59:52,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:52,616 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:59:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:52,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:52,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:52,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:52,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:52,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:52,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:52,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:52,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:52,954 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 18:59:52,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [60274058] [2021-02-23 18:59:52,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:59:52,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-23 18:59:52,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994138408] [2021-02-23 18:59:52,967 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-23 18:59:52,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:59:52,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-23 18:59:52,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:59:52,991 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 3 states. [2021-02-23 18:59:53,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:53,127 INFO L93 Difference]: Finished difference Result 61 states and 68 transitions. [2021-02-23 18:59:53,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-23 18:59:53,130 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2021-02-23 18:59:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:53,142 INFO L225 Difference]: With dead ends: 61 [2021-02-23 18:59:53,142 INFO L226 Difference]: Without dead ends: 38 [2021-02-23 18:59:53,147 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-23 18:59:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-02-23 18:59:53,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-02-23 18:59:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-23 18:59:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 38 transitions. [2021-02-23 18:59:53,214 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 38 transitions. Word has length 30 [2021-02-23 18:59:53,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:53,215 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 38 transitions. [2021-02-23 18:59:53,215 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-02-23 18:59:53,215 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 38 transitions. [2021-02-23 18:59:53,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-02-23 18:59:53,217 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:53,217 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] [2021-02-23 18:59:53,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:59:53,218 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:53,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:53,219 INFO L82 PathProgramCache]: Analyzing trace with hash 540130817, now seen corresponding path program 1 times [2021-02-23 18:59:53,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:53,220 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302315068] [2021-02-23 18:59:53,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:53,224 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:59:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:53,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:53,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 18:59:53,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:59:53,410 WARN L141 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size [2021-02-23 18:59:53,416 WARN L147 QuantifierPusher]: treesize reduction 7, result has 81.6 percent of original size 31 [2021-02-23 18:59:53,499 WARN L141 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size [2021-02-23 18:59:53,505 WARN L147 QuantifierPusher]: treesize reduction 7, result has 79.4 percent of original size 27 [2021-02-23 18:59:53,611 WARN L141 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-02-23 18:59:53,617 WARN L147 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size 23 [2021-02-23 18:59:53,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:53,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:53,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:53,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:53,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:53,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:53,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:53,818 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 18:59:53,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302315068] [2021-02-23 18:59:53,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:59:53,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 18:59:53,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261332476] [2021-02-23 18:59:53,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 18:59:53,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:59:53,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 18:59:53,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:59:53,824 INFO L87 Difference]: Start difference. First operand 38 states and 38 transitions. Second operand 10 states. [2021-02-23 18:59:54,223 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2021-02-23 18:59:54,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:54,487 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-02-23 18:59:54,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-23 18:59:54,488 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 30 [2021-02-23 18:59:54,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:54,490 INFO L225 Difference]: With dead ends: 47 [2021-02-23 18:59:54,491 INFO L226 Difference]: Without dead ends: 41 [2021-02-23 18:59:54,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2021-02-23 18:59:54,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-02-23 18:59:54,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2021-02-23 18:59:54,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-02-23 18:59:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2021-02-23 18:59:54,510 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 30 [2021-02-23 18:59:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:54,511 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2021-02-23 18:59:54,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 18:59:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2021-02-23 18:59:54,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-02-23 18:59:54,513 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:54,513 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] [2021-02-23 18:59:54,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:59:54,514 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:54,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:54,515 INFO L82 PathProgramCache]: Analyzing trace with hash 881077893, now seen corresponding path program 1 times [2021-02-23 18:59:54,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:54,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1065117063] [2021-02-23 18:59:54,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:56,702 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 18:59:56,748 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 18:59:58,831 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 18:59:58,842 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 18:59:58,844 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 18:59:58,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:59,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:59,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:59:59,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 18:59:59,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:59:59,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 18:59:59,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-02-23 18:59:59,106 WARN L141 QuantifierPusher]: treesize reduction 21, result has 80.7 percent of original size [2021-02-23 18:59:59,110 WARN L147 QuantifierPusher]: treesize reduction 21, result has 80.7 percent of original size 88 [2021-02-23 18:59:59,171 WARN L141 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size [2021-02-23 18:59:59,173 WARN L147 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size 53 [2021-02-23 18:59:59,218 WARN L141 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-02-23 18:59:59,219 WARN L147 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size 12 [2021-02-23 18:59:59,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:59,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:59:59,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:59,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:59,322 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 18:59:59,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,344 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:59:59,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-02-23 18:59:59,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-02-23 18:59:59,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,367 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 18:59:59,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:59,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 18:59:59,377 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-02-23 19:00:01,581 WARN L202 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 126 [2021-02-23 19:00:01,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:01,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-23 19:00:02,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 19:00:02,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 19:00:02,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 19:00:02,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-23 19:00:02,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 19:00:02,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:00:02,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-23 19:00:02,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:02,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:02,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1065117063] [2021-02-23 19:00:02,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:00:02,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-23 19:00:02,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065501778] [2021-02-23 19:00:02,872 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-23 19:00:02,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:00:02,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-23 19:00:02,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2021-02-23 19:00:02,874 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 19 states. [2021-02-23 19:00:03,586 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2021-02-23 19:00:03,775 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2021-02-23 19:00:03,969 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2021-02-23 19:00:04,204 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2021-02-23 19:00:05,314 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-02-23 19:00:05,502 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:00:05,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:00:05,817 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-02-23 19:00:05,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 19:00:05,818 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 38 [2021-02-23 19:00:05,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:00:05,824 INFO L225 Difference]: With dead ends: 55 [2021-02-23 19:00:05,824 INFO L226 Difference]: Without dead ends: 49 [2021-02-23 19:00:05,828 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 19:00:05,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-02-23 19:00:05,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2021-02-23 19:00:05,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-02-23 19:00:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-02-23 19:00:05,852 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 38 [2021-02-23 19:00:05,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:00:05,853 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-02-23 19:00:05,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-23 19:00:05,853 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-02-23 19:00:05,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-23 19:00:05,855 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:00:05,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:00:05,855 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 19:00:05,856 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:00:05,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:00:05,856 INFO L82 PathProgramCache]: Analyzing trace with hash 984603401, now seen corresponding path program 2 times [2021-02-23 19:00:05,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:00:05,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853687816] [2021-02-23 19:00:05,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:00:08,068 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-02-23 19:00:08,077 WARN L141 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size [2021-02-23 19:00:08,086 WARN L147 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size 106 [2021-02-23 19:00:10,326 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-02-23 19:00:10,330 WARN L141 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size [2021-02-23 19:00:10,339 WARN L147 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size 125 [2021-02-23 19:00:10,340 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:00:12,435 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 19:00:12,448 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 19:00:14,567 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 19:00:14,578 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 19:00:14,579 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:00:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:00:14,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:14,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:00:14,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 19:00:14,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 19:00:14,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 19:00:14,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:14,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 19:00:14,951 WARN L141 QuantifierPusher]: treesize reduction 21, result has 81.4 percent of original size [2021-02-23 19:00:14,953 WARN L147 QuantifierPusher]: treesize reduction 21, result has 81.4 percent of original size 92 [2021-02-23 19:00:15,090 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 20 [2021-02-23 19:00:15,094 WARN L141 QuantifierPusher]: treesize reduction 21, result has 79.0 percent of original size [2021-02-23 19:00:15,096 WARN L147 QuantifierPusher]: treesize reduction 21, result has 79.0 percent of original size 79 [2021-02-23 19:00:15,209 WARN L141 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-02-23 19:00:15,210 WARN L147 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size 12 [2021-02-23 19:00:15,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:00:15,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:00:15,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:15,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:00:15,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:00:15,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:15,423 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 19:00:15,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,446 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:15,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:00:15,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 19:00:15,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,473 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:15,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 223 [2021-02-23 19:00:15,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 224 [2021-02-23 19:00:15,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 19:00:15,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-23 19:00:15,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 19:00:15,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 19:00:15,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:15,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 19:00:16,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 19:00:16,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:00:16,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 19:00:16,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 19:00:16,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-23 19:00:16,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 19:00:16,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:00:16,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:00:16,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:16,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:00:17,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:17,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 19:00:17,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:17,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 19:00:17,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:17,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:17,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853687816] [2021-02-23 19:00:17,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:00:17,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-23 19:00:17,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208381978] [2021-02-23 19:00:17,342 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-23 19:00:17,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:00:17,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-23 19:00:17,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2021-02-23 19:00:17,344 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 27 states. [2021-02-23 19:00:18,020 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-02-23 19:00:18,248 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2021-02-23 19:00:18,470 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2021-02-23 19:00:18,690 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-02-23 19:00:20,078 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-23 19:00:20,281 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:00:20,973 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-02-23 19:00:21,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:00:21,571 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-02-23 19:00:21,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 19:00:21,572 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 46 [2021-02-23 19:00:21,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:00:21,574 INFO L225 Difference]: With dead ends: 63 [2021-02-23 19:00:21,574 INFO L226 Difference]: Without dead ends: 57 [2021-02-23 19:00:21,576 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=279, Invalid=2373, Unknown=0, NotChecked=0, Total=2652 [2021-02-23 19:00:21,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-02-23 19:00:21,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2021-02-23 19:00:21,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-02-23 19:00:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2021-02-23 19:00:21,625 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 46 [2021-02-23 19:00:21,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:00:21,625 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2021-02-23 19:00:21,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-02-23 19:00:21,626 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2021-02-23 19:00:21,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-02-23 19:00:21,627 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:00:21,628 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:00:21,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 19:00:21,628 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:00:21,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:00:21,629 INFO L82 PathProgramCache]: Analyzing trace with hash 1404617613, now seen corresponding path program 3 times [2021-02-23 19:00:21,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:00:21,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631307797] [2021-02-23 19:00:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:00:23,820 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-02-23 19:00:23,826 WARN L141 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size [2021-02-23 19:00:23,832 WARN L147 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size 106 [2021-02-23 19:00:26,008 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-02-23 19:00:26,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:26,020 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-23 19:00:26,027 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:26,027 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:26,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:26,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 153 [2021-02-23 19:00:26,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-02-23 19:00:26,067 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:00:28,176 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 19:00:28,188 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 19:00:30,288 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 19:00:30,296 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 19:00:30,297 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:00:30,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:00:30,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:30,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 19:00:30,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-23 19:00:30,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 19:00:30,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 19:00:30,603 WARN L141 QuantifierPusher]: treesize reduction 51, result has 55.7 percent of original size [2021-02-23 19:00:30,604 WARN L147 QuantifierPusher]: treesize reduction 51, result has 55.7 percent of original size 64 [2021-02-23 19:00:30,752 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2021-02-23 19:00:30,755 WARN L141 QuantifierPusher]: treesize reduction 41, result has 38.8 percent of original size [2021-02-23 19:00:30,756 WARN L147 QuantifierPusher]: treesize reduction 41, result has 38.8 percent of original size 26 [2021-02-23 19:00:30,804 WARN L141 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-02-23 19:00:30,807 WARN L147 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size 12 [2021-02-23 19:00:30,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:00:30,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:00:30,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:30,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:00:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:00:30,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:00:30,988 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 19:00:30,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:30,996 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:30,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:31,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 19:00:31,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 193 [2021-02-23 19:00:31,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:31,007 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:31,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:31,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 239 [2021-02-23 19:00:31,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 240 [2021-02-23 19:00:33,467 WARN L202 SmtUtils]: Spent 2.45 s on a formula simplification that was a NOOP. DAG size: 127 [2021-02-23 19:00:34,063 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 63 [2021-02-23 19:00:34,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,070 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:34,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 19:00:34,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-23 19:00:34,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,237 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:34,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 19:00:34,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 184 [2021-02-23 19:00:34,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,457 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:34,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 175 [2021-02-23 19:00:34,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:00:34,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,683 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:34,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-02-23 19:00:34,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 187 [2021-02-23 19:00:34,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,940 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:34,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:34,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:34,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-02-23 19:00:35,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:35,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:35,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:35,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:35,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 194 [2021-02-23 19:00:35,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:35,428 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:35,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:35,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:35,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-02-23 19:00:37,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:37,833 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:37,837 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:00:37,839 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 183 [2021-02-23 19:00:37,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 197 [2021-02-23 19:00:41,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,173 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:41,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:41,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-02-23 19:00:41,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,501 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:41,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:41,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-02-23 19:00:41,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,874 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:41,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:41,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:00:41,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 19:00:42,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:42,234 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:42,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:42,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:00:42,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-02-23 19:00:44,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:44,951 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:44,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:44,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:00:44,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 19:00:47,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:47,504 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:47,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:47,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:00:47,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-02-23 19:00:50,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:50,081 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:50,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:50,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:00:50,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-02-23 19:00:56,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:00:56,938 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:00:56,941 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:00:56,943 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 183 [2021-02-23 19:00:56,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 19:01:05,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:05,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:05,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:05,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:01:05,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 201 [2021-02-23 19:01:06,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:06,144 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:06,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:06,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:01:06,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 204 [2021-02-23 19:01:06,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:06,738 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:06,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:06,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 183 [2021-02-23 19:01:06,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-23 19:01:07,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:07,614 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:07,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:07,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:01:07,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-02-23 19:01:08,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:08,327 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:08,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:08,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:01:08,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-23 19:01:11,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:11,003 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:11,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:11,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:01:11,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 208 [2021-02-23 19:01:11,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:11,585 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:11,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:11,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 185 [2021-02-23 19:01:11,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 214 [2021-02-23 19:01:12,567 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 19:01:12,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:12,575 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:01:12,578 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:01:12,579 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 183 [2021-02-23 19:01:12,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-23 19:01:29,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:01:29,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:01:29,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631307797] [2021-02-23 19:01:29,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:01:29,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-02-23 19:01:29,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404186559] [2021-02-23 19:01:29,049 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 19:01:29,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:01:29,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 19:01:29,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1192, Unknown=18, NotChecked=0, Total=1332 [2021-02-23 19:01:29,051 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand 34 states. [2021-02-23 19:01:31,308 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-02-23 19:01:32,024 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93 [2021-02-23 19:01:32,958 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95 [2021-02-23 19:01:33,788 WARN L202 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 97 [2021-02-23 19:01:36,815 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 19:01:38,476 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 19:01:39,013 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-02-23 19:01:41,677 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 19:01:53,151 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-02-23 19:01:55,090 WARN L202 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-02-23 19:02:06,003 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-02-23 19:02:06,822 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 19:02:16,708 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-02-23 19:02:24,072 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-02-23 19:02:35,377 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 19:02:40,386 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-23 19:03:02,283 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-23 19:03:23,190 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-02-23 19:03:26,476 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-02-23 19:03:33,093 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-23 19:03:44,592 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-23 19:03:47,797 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-02-23 19:03:53,229 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-23 19:03:53,992 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-23 19:04:11,710 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2021-02-23 19:04:25,796 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-02-23 19:05:08,091 WARN L202 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 186 DAG size of output: 140 [2021-02-23 19:05:59,343 WARN L202 SmtUtils]: Spent 10.70 s on a formula simplification. DAG size of input: 214 DAG size of output: 139 [2021-02-23 19:06:00,127 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:06:01,090 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-23 19:06:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:06:01,766 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-02-23 19:06:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-23 19:06:01,779 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 54 [2021-02-23 19:06:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:06:01,781 INFO L225 Difference]: With dead ends: 71 [2021-02-23 19:06:01,781 INFO L226 Difference]: Without dead ends: 65 [2021-02-23 19:06:01,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1159 ImplicationChecksByTransitivity, 237.4s TimeCoverageRelationStatistics Valid=347, Invalid=4124, Unknown=85, NotChecked=0, Total=4556 [2021-02-23 19:06:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-02-23 19:06:01,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 63. [2021-02-23 19:06:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-23 19:06:01,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 63 transitions. [2021-02-23 19:06:01,812 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 63 transitions. Word has length 54 [2021-02-23 19:06:01,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:06:01,812 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 63 transitions. [2021-02-23 19:06:01,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 19:06:01,813 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 63 transitions. [2021-02-23 19:06:01,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-23 19:06:01,814 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:06:01,815 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 19:06:01,815 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 19:06:01,815 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:06:01,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:06:01,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1554180113, now seen corresponding path program 4 times [2021-02-23 19:06:01,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:06:01,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [779378817] [2021-02-23 19:06:01,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:06:04,394 WARN L202 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-02-23 19:06:04,404 WARN L141 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size [2021-02-23 19:06:04,414 WARN L147 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size 125 [2021-02-23 19:06:06,933 WARN L202 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-02-23 19:06:06,942 WARN L141 QuantifierPusher]: treesize reduction 14, result has 88.3 percent of original size [2021-02-23 19:06:06,949 WARN L147 QuantifierPusher]: treesize reduction 14, result has 88.3 percent of original size 106 [2021-02-23 19:06:06,950 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:06:09,185 WARN L202 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:06:09,194 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 19:06:09,202 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 19:06:11,435 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-23 19:06:11,443 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 19:06:11,451 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 19:06:11,452 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:06:11,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:06:11,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:11,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:06:11,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:11,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:06:11,573 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:11,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 19:06:11,746 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2021-02-23 19:06:11,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:11,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 19:06:11,923 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2021-02-23 19:06:11,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:11,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 19:06:12,146 WARN L202 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-02-23 19:06:12,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:12,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 19:06:12,228 WARN L141 QuantifierPusher]: treesize reduction 160, result has 14.9 percent of original size [2021-02-23 19:06:12,232 WARN L147 QuantifierPusher]: treesize reduction 160, result has 14.9 percent of original size 28 [2021-02-23 19:06:12,473 WARN L202 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:06:12,484 WARN L141 QuantifierPusher]: treesize reduction 152, result has 14.6 percent of original size [2021-02-23 19:06:12,489 WARN L147 QuantifierPusher]: treesize reduction 152, result has 14.6 percent of original size 26 [2021-02-23 19:06:12,743 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:06:12,752 WARN L141 QuantifierPusher]: treesize reduction 115, result has 9.4 percent of original size [2021-02-23 19:06:12,756 WARN L147 QuantifierPusher]: treesize reduction 115, result has 9.4 percent of original size 12 [2021-02-23 19:06:12,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:12,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:06:13,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:06:13,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:06:13,435 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:06:13,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:06:13,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:06:13,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:06:13,460 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 19:06:13,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,469 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:06:13,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:06:13,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 19:06:13,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,490 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:06:13,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-02-23 19:06:13,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-02-23 19:06:13,677 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 65 [2021-02-23 19:06:13,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:13,796 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-23 19:06:14,065 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-02-23 19:06:14,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:14,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-02-23 19:06:14,380 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:06:14,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:14,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 19:06:14,722 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:06:14,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:14,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-23 19:06:15,057 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:06:15,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:15,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 19:06:15,426 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:06:15,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:15,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 19:06:15,827 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:06:15,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:15,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:06:16,235 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-02-23 19:06:16,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:16,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 19:06:16,672 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:06:16,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:16,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-23 19:06:17,122 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:06:17,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:17,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-02-23 19:06:17,558 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-02-23 19:06:17,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:17,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 19:06:18,016 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-02-23 19:06:18,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:18,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:06:18,448 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-02-23 19:06:18,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:18,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:06:18,904 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-02-23 19:06:18,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:18,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:06:19,381 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:06:19,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:19,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 19:06:19,960 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-23 19:06:19,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:19,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 19:06:20,453 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-02-23 19:06:20,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:20,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-02-23 19:06:20,994 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:06:21,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:21,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-02-23 19:06:21,587 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:06:21,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:21,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-23 19:06:22,144 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-23 19:06:22,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:22,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-23 19:06:22,668 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:06:22,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:22,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 19:06:23,248 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:06:23,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:23,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 19:06:23,906 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:06:23,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:23,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-23 19:06:24,597 WARN L202 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-02-23 19:06:24,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:24,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 19:06:25,241 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:06:25,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:25,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-02-23 19:06:25,907 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:06:25,915 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:25,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-02-23 19:06:26,610 WARN L202 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:06:26,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:26,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-02-23 19:06:27,335 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-23 19:06:27,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:27,348 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-02-23 19:06:28,003 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:06:28,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:28,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-23 19:06:28,693 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:06:28,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:28,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-23 19:06:29,424 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-02-23 19:06:29,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:29,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-23 19:06:30,335 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-02-23 19:06:30,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:30,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-23 19:06:31,096 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:06:31,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:06:31,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:06:31,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [779378817] [2021-02-23 19:06:31,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:06:31,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-02-23 19:06:31,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894443780] [2021-02-23 19:06:31,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-23 19:06:31,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:06:31,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-23 19:06:31,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1758, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 19:06:31,110 INFO L87 Difference]: Start difference. First operand 63 states and 63 transitions. Second operand 43 states. [2021-02-23 19:06:33,650 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-23 19:06:34,598 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:06:35,518 WARN L202 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 37 [2021-02-23 19:06:36,425 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2021-02-23 19:06:37,321 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2021-02-23 19:06:38,388 WARN L202 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-02-23 19:06:39,039 WARN L202 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:06:39,706 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-23 19:06:40,462 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:06:41,160 WARN L202 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:06:41,931 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-23 19:06:42,712 WARN L202 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:06:43,510 WARN L202 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:06:44,292 WARN L202 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:06:45,061 WARN L202 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-23 19:06:45,793 WARN L202 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-23 19:06:46,577 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:06:47,355 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:06:48,221 WARN L202 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-23 19:06:49,109 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:06:50,034 WARN L202 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:06:51,009 WARN L202 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:06:51,892 WARN L202 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-23 19:06:52,713 WARN L202 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:06:53,611 WARN L202 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:06:54,448 WARN L202 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:06:55,451 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-23 19:06:56,361 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:06:57,384 WARN L202 SmtUtils]: Spent 419.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:06:58,361 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:06:59,245 WARN L202 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-23 19:07:00,124 WARN L202 SmtUtils]: Spent 433.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:07:01,052 WARN L202 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:07:01,957 WARN L202 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:07:02,969 WARN L202 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-02-23 19:07:03,983 WARN L202 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:07:05,660 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2021-02-23 19:07:06,893 WARN L202 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-23 19:07:07,475 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:07:08,337 WARN L202 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-23 19:07:08,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:07:08,910 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-02-23 19:07:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-02-23 19:07:08,925 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 62 [2021-02-23 19:07:08,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:07:08,926 INFO L225 Difference]: With dead ends: 79 [2021-02-23 19:07:08,926 INFO L226 Difference]: Without dead ends: 73 [2021-02-23 19:07:08,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2026 ImplicationChecksByTransitivity, 44.4s TimeCoverageRelationStatistics Valid=459, Invalid=6513, Unknown=0, NotChecked=0, Total=6972 [2021-02-23 19:07:08,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-23 19:07:08,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2021-02-23 19:07:08,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2021-02-23 19:07:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-02-23 19:07:08,959 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 62 [2021-02-23 19:07:08,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:07:08,959 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-02-23 19:07:08,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2021-02-23 19:07:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-02-23 19:07:08,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-02-23 19:07:08,961 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:07:08,961 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 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 19:07:08,961 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 19:07:08,961 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:07:08,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:07:08,962 INFO L82 PathProgramCache]: Analyzing trace with hash -294500203, now seen corresponding path program 5 times [2021-02-23 19:07:08,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:07:08,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1177012424] [2021-02-23 19:07:08,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:07:11,573 WARN L202 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-02-23 19:07:11,589 WARN L141 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size [2021-02-23 19:07:11,609 WARN L147 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size 125 [2021-02-23 19:07:14,193 WARN L202 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-02-23 19:07:14,203 WARN L141 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size [2021-02-23 19:07:14,211 WARN L147 QuantifierPusher]: treesize reduction 85, result has 55.5 percent of original size 106 [2021-02-23 19:07:14,212 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:07:16,472 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:07:16,480 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 19:07:16,488 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 19:07:18,774 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-23 19:07:18,783 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 19:07:18,790 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 19:07:18,791 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:07:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:07:18,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:18,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:07:18,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:18,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:07:18,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:18,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 19:07:19,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:19,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 19:07:19,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:19,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 19:07:19,356 WARN L141 QuantifierPusher]: treesize reduction 48, result has 33.3 percent of original size [2021-02-23 19:07:19,361 WARN L147 QuantifierPusher]: treesize reduction 48, result has 33.3 percent of original size 24 [2021-02-23 19:07:19,571 WARN L202 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2021-02-23 19:07:19,581 WARN L141 QuantifierPusher]: treesize reduction 21, result has 82.1 percent of original size [2021-02-23 19:07:19,586 WARN L147 QuantifierPusher]: treesize reduction 21, result has 82.1 percent of original size 96 [2021-02-23 19:07:20,377 WARN L202 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 23 [2021-02-23 19:07:20,386 WARN L141 QuantifierPusher]: treesize reduction 21, result has 79.2 percent of original size [2021-02-23 19:07:20,394 WARN L147 QuantifierPusher]: treesize reduction 21, result has 79.2 percent of original size 80 [2021-02-23 19:07:20,904 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 16 [2021-02-23 19:07:20,913 WARN L141 QuantifierPusher]: treesize reduction 46, result has 43.9 percent of original size [2021-02-23 19:07:20,918 WARN L147 QuantifierPusher]: treesize reduction 46, result has 43.9 percent of original size 36 [2021-02-23 19:07:21,247 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 9 [2021-02-23 19:07:21,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:07:21,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:07:21,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:07:21,839 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:07:21,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:07:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:07:21,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:07:21,876 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 19:07:21,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,887 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:07:21,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-23 19:07:21,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-02-23 19:07:21,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,923 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:07:21,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:21,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 211 [2021-02-23 19:07:21,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-23 19:07:22,125 WARN L202 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 65 [2021-02-23 19:07:22,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:22,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-02-23 19:07:22,545 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2021-02-23 19:07:22,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:22,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-02-23 19:07:22,850 WARN L202 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:07:22,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:22,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 19:07:23,201 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:07:23,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:23,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-23 19:07:23,527 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:07:23,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:23,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 19:07:23,856 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-02-23 19:07:23,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:23,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-23 19:07:24,215 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:07:24,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:24,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-23 19:07:24,558 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-02-23 19:07:24,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:24,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 19:07:24,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:24,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-02-23 19:07:25,204 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-02-23 19:07:25,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:25,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-23 19:07:25,578 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:07:25,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:25,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 19:07:25,952 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-02-23 19:07:25,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:25,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:07:26,357 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:07:26,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:26,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:07:26,735 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:07:26,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:26,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-02-23 19:07:27,121 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-02-23 19:07:27,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:27,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-23 19:07:27,556 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-02-23 19:07:27,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:27,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-02-23 19:07:27,958 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2021-02-23 19:07:27,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:27,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-02-23 19:07:28,385 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2021-02-23 19:07:28,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:28,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 19:07:28,840 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:07:28,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:28,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 19:07:29,301 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-02-23 19:07:29,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:29,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 19:07:29,792 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:07:29,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:29,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-23 19:07:30,248 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:07:30,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:30,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-02-23 19:07:30,743 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:07:30,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:30,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-23 19:07:31,338 WARN L202 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-23 19:07:31,347 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:31,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-02-23 19:07:31,872 WARN L202 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:07:31,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:31,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-02-23 19:07:32,428 WARN L202 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-02-23 19:07:32,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:32,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 19:07:33,059 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:07:33,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:33,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-23 19:07:33,620 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-02-23 19:07:33,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:33,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-23 19:07:34,188 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:07:34,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:34,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-23 19:07:34,747 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:07:34,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:34,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-02-23 19:07:35,363 WARN L202 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:07:35,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:35,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-23 19:07:36,113 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-23 19:07:36,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:36,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-23 19:07:36,792 WARN L202 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:07:36,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:36,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-02-23 19:07:37,438 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:07:37,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:37,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-02-23 19:07:38,141 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-02-23 19:07:38,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:38,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-02-23 19:07:38,768 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-02-23 19:07:38,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:38,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-23 19:07:39,462 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-02-23 19:07:39,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:39,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-23 19:07:40,159 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-02-23 19:07:40,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:40,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-23 19:07:40,926 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2021-02-23 19:07:40,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:40,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-02-23 19:07:41,912 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2021-02-23 19:07:41,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:41,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-02-23 19:07:42,812 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-02-23 19:07:42,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:07:42,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:07:42,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1177012424] [2021-02-23 19:07:42,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 19:07:42,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-02-23 19:07:42,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99713181] [2021-02-23 19:07:42,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-02-23 19:07:42,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 19:07:42,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-02-23 19:07:42,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=2589, Unknown=0, NotChecked=0, Total=2756 [2021-02-23 19:07:42,827 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand 51 states. [2021-02-23 19:07:45,712 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-02-23 19:07:46,580 WARN L202 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-02-23 19:07:47,311 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2021-02-23 19:07:48,013 WARN L202 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-02-23 19:07:48,819 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-02-23 19:07:49,579 WARN L202 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-02-23 19:07:50,229 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:07:50,866 WARN L202 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-23 19:07:51,566 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-23 19:07:52,167 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:07:52,918 WARN L202 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-23 19:07:53,602 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2021-02-23 19:07:54,333 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-02-23 19:07:55,038 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:07:55,718 WARN L202 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-02-23 19:07:56,362 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:07:57,069 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:07:57,786 WARN L202 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:07:58,686 WARN L202 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-02-23 19:07:59,519 WARN L202 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-02-23 19:08:00,447 WARN L202 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-02-23 19:08:01,316 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:08:02,049 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2021-02-23 19:08:02,767 WARN L202 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:08:03,516 WARN L202 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:08:04,186 WARN L202 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:08:05,005 WARN L202 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-02-23 19:08:05,748 WARN L202 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-02-23 19:08:06,564 WARN L202 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-02-23 19:08:07,421 WARN L202 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:08:08,182 WARN L202 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2021-02-23 19:08:08,920 WARN L202 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:08:09,707 WARN L202 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:08:10,434 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:08:11,281 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2021-02-23 19:08:12,068 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-02-23 19:08:12,889 WARN L202 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-02-23 19:08:13,750 WARN L202 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:08:14,553 WARN L202 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-02-23 19:08:15,338 WARN L202 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:08:16,099 WARN L202 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:08:16,890 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-23 19:08:17,757 WARN L202 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2021-02-23 19:08:18,574 WARN L202 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:08:20,315 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2021-02-23 19:08:21,517 WARN L202 SmtUtils]: Spent 498.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-02-23 19:08:22,161 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-02-23 19:08:23,128 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-02-23 19:08:23,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 19:08:23,803 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2021-02-23 19:08:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-02-23 19:08:23,818 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 70 [2021-02-23 19:08:23,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 19:08:23,819 INFO L225 Difference]: With dead ends: 87 [2021-02-23 19:08:23,819 INFO L226 Difference]: Without dead ends: 81 [2021-02-23 19:08:23,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3063 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=559, Invalid=9541, Unknown=0, NotChecked=0, Total=10100 [2021-02-23 19:08:23,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-23 19:08:23,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 79. [2021-02-23 19:08:23,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-23 19:08:23,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2021-02-23 19:08:23,854 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 70 [2021-02-23 19:08:23,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 19:08:23,854 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2021-02-23 19:08:23,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2021-02-23 19:08:23,854 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2021-02-23 19:08:23,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-02-23 19:08:23,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 19:08:23,856 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 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 19:08:23,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 19:08:23,857 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 19:08:23,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 19:08:23,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1579869465, now seen corresponding path program 6 times [2021-02-23 19:08:23,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 19:08:23,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643088478] [2021-02-23 19:08:23,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 19:08:26,462 WARN L202 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-02-23 19:08:26,471 WARN L141 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size [2021-02-23 19:08:26,481 WARN L147 QuantifierPusher]: treesize reduction 74, result has 62.8 percent of original size 125 [2021-02-23 19:08:29,090 WARN L202 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2021-02-23 19:08:29,098 WARN L141 QuantifierPusher]: treesize reduction 14, result has 88.3 percent of original size [2021-02-23 19:08:29,107 WARN L147 QuantifierPusher]: treesize reduction 14, result has 88.3 percent of original size 106 [2021-02-23 19:08:29,108 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:08:31,383 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-02-23 19:08:31,394 WARN L141 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size [2021-02-23 19:08:31,408 WARN L147 QuantifierPusher]: treesize reduction 47, result has 68.2 percent of original size 101 [2021-02-23 19:08:33,675 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-02-23 19:08:33,686 WARN L141 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size [2021-02-23 19:08:33,693 WARN L147 QuantifierPusher]: treesize reduction 34, result has 76.1 percent of original size 108 [2021-02-23 19:08:33,694 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-23 19:08:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:08:33,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:33,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:08:33,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:33,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 19:08:33,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:33,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 19:08:34,007 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2021-02-23 19:08:34,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:34,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-02-23 19:08:34,223 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2021-02-23 19:08:34,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:34,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-23 19:08:34,510 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2021-02-23 19:08:34,520 WARN L141 QuantifierPusher]: treesize reduction 13, result has 82.7 percent of original size [2021-02-23 19:08:34,525 WARN L147 QuantifierPusher]: treesize reduction 13, result has 82.7 percent of original size 62 [2021-02-23 19:08:35,173 WARN L202 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2021-02-23 19:08:35,182 WARN L141 QuantifierPusher]: treesize reduction 21, result has 82.1 percent of original size [2021-02-23 19:08:35,186 WARN L147 QuantifierPusher]: treesize reduction 21, result has 82.1 percent of original size 96 [2021-02-23 19:08:36,341 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2021-02-23 19:08:36,352 WARN L141 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size [2021-02-23 19:08:36,359 WARN L147 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size 53 [2021-02-23 19:08:36,868 WARN L202 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2021-02-23 19:08:36,878 WARN L141 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size [2021-02-23 19:08:36,882 WARN L147 QuantifierPusher]: treesize reduction 40, result has 23.1 percent of original size 12 [2021-02-23 19:08:37,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:08:37,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 19:08:37,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:08:37,710 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-02-23 19:08:37,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 19:08:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 19:08:37,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 19:08:37,735 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 19:08:37,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:37,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-02-23 19:08:37,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 198 [2021-02-23 19:08:37,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,769 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:37,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:37,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 235 [2021-02-23 19:08:37,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 236 [2021-02-23 19:08:39,275 WARN L202 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 130 DAG size of output: 64 [2021-02-23 19:08:39,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:39,580 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:39,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:39,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-02-23 19:08:39,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-23 19:08:39,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:39,952 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:39,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:39,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-02-23 19:08:39,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 189 [2021-02-23 19:08:40,379 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-02-23 19:08:40,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:40,395 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:40,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:40,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 180 [2021-02-23 19:08:40,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 195 [2021-02-23 19:08:40,892 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-02-23 19:08:40,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:40,905 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:40,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:40,916 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 186 [2021-02-23 19:08:40,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 192 [2021-02-23 19:08:43,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:43,588 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:43,593 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:43,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:08:43,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-02-23 19:08:48,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:48,802 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:48,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:48,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:08:48,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 199 [2021-02-23 19:08:51,449 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-23 19:08:51,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:51,461 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:51,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:51,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:08:51,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 205 [2021-02-23 19:08:56,391 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-02-23 19:08:56,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:08:56,405 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:08:56,410 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:08:56,416 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 188 [2021-02-23 19:08:56,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 202 [2021-02-23 19:09:02,953 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-02-23 19:09:02,966 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:02,968 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:02,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:02,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:09:02,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 200 [2021-02-23 19:09:06,559 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-02-23 19:09:06,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:06,570 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:06,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:06,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:09:06,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 203 [2021-02-23 19:09:11,359 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-02-23 19:09:11,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:11,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:11,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:11,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:09:11,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-02-23 19:09:12,510 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-02-23 19:09:12,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:12,525 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:12,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:12,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:09:12,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-02-23 19:09:25,733 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-02-23 19:09:25,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:25,744 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:25,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:25,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:09:25,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-23 19:09:31,678 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-02-23 19:09:31,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:31,693 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:31,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:31,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:09:31,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 207 [2021-02-23 19:09:38,410 WARN L202 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-02-23 19:09:38,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:38,424 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:38,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:38,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:09:38,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-23 19:09:48,407 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-02-23 19:09:48,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:48,420 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:48,431 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:09:48,437 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 188 [2021-02-23 19:09:48,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 210 [2021-02-23 19:09:58,988 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-02-23 19:09:59,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:59,001 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:09:59,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:09:59,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:09:59,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 206 [2021-02-23 19:10:11,869 WARN L202 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-02-23 19:10:11,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:11,881 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:10:11,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:11,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:10:11,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 209 [2021-02-23 19:10:20,485 WARN L202 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-02-23 19:10:20,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:20,505 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:10:20,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:20,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:10:20,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-02-23 19:10:26,023 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 19:10:26,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:26,035 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:10:26,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:26,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:10:26,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-23 19:10:40,337 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-02-23 19:10:40,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:40,351 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:10:40,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:10:40,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:10:40,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-02-23 19:11:01,115 WARN L202 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 19:11:01,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:01,129 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:11:01,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:01,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:11:01,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 213 [2021-02-23 19:11:10,966 WARN L202 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 19:11:10,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:10,984 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:11:10,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:10,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:11:11,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-02-23 19:11:23,525 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 19:11:23,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:23,545 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:11:23,552 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:11:23,559 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 188 [2021-02-23 19:11:23,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 216 [2021-02-23 19:11:44,083 WARN L202 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-23 19:11:44,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:44,099 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:11:44,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:44,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:11:44,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 212 [2021-02-23 19:11:56,739 WARN L202 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-02-23 19:11:56,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:56,755 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:11:56,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:11:56,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:11:56,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 215 [2021-02-23 19:12:12,847 WARN L202 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 19:12:12,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:12,865 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:12:12,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:12,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:12:12,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-02-23 19:12:17,725 WARN L202 SmtUtils]: Spent 403.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 19:12:17,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:17,745 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:12:17,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:17,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:12:17,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-02-23 19:12:34,170 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 19:12:34,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:34,191 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:12:34,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:34,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:12:34,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-02-23 19:12:44,154 WARN L202 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 19:12:44,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:44,172 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:12:44,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:44,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:12:44,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 219 [2021-02-23 19:12:59,225 WARN L202 SmtUtils]: Spent 406.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 19:12:59,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:59,244 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:12:59,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:12:59,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 190 [2021-02-23 19:12:59,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 225 [2021-02-23 19:13:14,718 WARN L202 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-23 19:13:14,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:14,741 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:13:14,752 WARN L141 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size [2021-02-23 19:13:14,763 WARN L147 QuantifierPusher]: treesize reduction 2, result has 98.9 percent of original size 188 [2021-02-23 19:13:14,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 222 [2021-02-23 19:13:34,680 WARN L202 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-02-23 19:13:34,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:34,700 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:13:34,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:13:34,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:13:34,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 218 [2021-02-23 19:14:03,157 WARN L202 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-02-23 19:14:03,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,175 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-23 19:14:03,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 19:14:03,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 188 [2021-02-23 19:14:03,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221