/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/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/sum_25x0-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 04:15:17,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 04:15:17,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 04:15:17,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 04:15:17,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 04:15:17,497 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 04:15:17,500 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 04:15:17,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 04:15:17,505 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 04:15:17,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 04:15:17,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 04:15:17,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 04:15:17,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 04:15:17,531 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 04:15:17,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 04:15:17,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 04:15:17,545 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 04:15:17,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 04:15:17,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 04:15:17,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 04:15:17,559 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 04:15:17,583 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 04:15:17,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 04:15:17,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 04:15:17,588 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 04:15:17,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 04:15:17,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 04:15:17,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 04:15:17,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 04:15:17,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 04:15:17,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 04:15:17,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 04:15:17,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 04:15:17,591 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 04:15:17,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 04:15:17,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 04:15:17,592 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 04:15:17,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 04:15:17,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 04:15:17,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 04:15:17,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 04:15:17,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 04:15:17,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 04:15:17,593 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 04:15:17,593 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 04:15:18,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 04:15:18,072 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 04:15:18,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 04:15:18,077 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 04:15:18,078 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 04:15:18,079 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2021-02-24 04:15:18,176 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617c2637b/5d024428dc89424999547246c373402b/FLAG783d2f335 [2021-02-24 04:15:18,909 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 04:15:18,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_25x0-1.c [2021-02-24 04:15:18,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617c2637b/5d024428dc89424999547246c373402b/FLAG783d2f335 [2021-02-24 04:15:19,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/617c2637b/5d024428dc89424999547246c373402b [2021-02-24 04:15:19,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 04:15:19,299 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 04:15:19,300 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 04:15:19,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 04:15:19,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 04:15:19,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f494333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19, skipping insertion in model container [2021-02-24 04:15:19,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 04:15:19,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 04:15:19,486 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_25x0-1.c[481,494] [2021-02-24 04:15:19,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:15:19,506 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 04:15:19,522 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/sum_25x0-1.c[481,494] [2021-02-24 04:15:19,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 04:15:19,540 INFO L208 MainTranslator]: Completed translation [2021-02-24 04:15:19,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19 WrapperNode [2021-02-24 04:15:19,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 04:15:19,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 04:15:19,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 04:15:19,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 04:15:19,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (1/1) ... [2021-02-24 04:15:19,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 04:15:19,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 04:15:19,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 04:15:19,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 04:15:19,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (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 [2021-02-24 04:15:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 04:15:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 04:15:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 04:15:19,686 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2021-02-24 04:15:19,687 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 04:15:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 04:15:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 04:15:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 04:15:19,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 04:15:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2021-02-24 04:15:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 04:15:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 04:15:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 04:15:19,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 04:15:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 04:15:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 04:15:19,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 04:15:19,983 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 04:15:19,983 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 04:15:19,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:19 BoogieIcfgContainer [2021-02-24 04:15:19,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 04:15:19,990 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 04:15:19,990 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 04:15:19,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 04:15:19,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 04:15:19" (1/3) ... [2021-02-24 04:15:19,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684645a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:19, skipping insertion in model container [2021-02-24 04:15:19,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 04:15:19" (2/3) ... [2021-02-24 04:15:19,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684645a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 04:15:19, skipping insertion in model container [2021-02-24 04:15:19,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 04:15:19" (3/3) ... [2021-02-24 04:15:19,999 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_25x0-1.c [2021-02-24 04:15:20,007 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 04:15:20,012 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 04:15:20,035 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 04:15:20,084 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 04:15:20,085 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 04:15:20,085 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 04:15:20,090 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 04:15:20,091 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 04:15:20,091 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 04:15:20,091 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 04:15:20,091 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 04:15:20,134 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2021-02-24 04:15:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-02-24 04:15:20,157 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:20,161 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] [2021-02-24 04:15:20,161 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:20,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:20,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1485133070, now seen corresponding path program 1 times [2021-02-24 04:15:20,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:20,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [48200822] [2021-02-24 04:15:20,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:20,302 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:20,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:20,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:20,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:20,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:20,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:20,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:20,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:20,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:20,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:20,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:20,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:20,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:20,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-24 04:15:20,802 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [48200822] [2021-02-24 04:15:20,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:20,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 04:15:20,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537624473] [2021-02-24 04:15:20,812 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 04:15:20,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:20,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 04:15:20,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-02-24 04:15:20,835 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 7 states. [2021-02-24 04:15:21,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:21,145 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2021-02-24 04:15:21,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 04:15:21,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2021-02-24 04:15:21,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:21,158 INFO L225 Difference]: With dead ends: 48 [2021-02-24 04:15:21,159 INFO L226 Difference]: Without dead ends: 33 [2021-02-24 04:15:21,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:15:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-02-24 04:15:21,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-02-24 04:15:21,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-02-24 04:15:21,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2021-02-24 04:15:21,259 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 26 [2021-02-24 04:15:21,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:21,260 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2021-02-24 04:15:21,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 04:15:21,260 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2021-02-24 04:15:21,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-24 04:15:21,264 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:21,264 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:21,267 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 04:15:21,268 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:21,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1822905144, now seen corresponding path program 1 times [2021-02-24 04:15:21,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:21,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417578680] [2021-02-24 04:15:21,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:21,285 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:21,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:21,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:21,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,492 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-02-24 04:15:21,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417578680] [2021-02-24 04:15:21,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:21,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 04:15:21,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713467954] [2021-02-24 04:15:21,495 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 04:15:21,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:21,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 04:15:21,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-24 04:15:21,496 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 8 states. [2021-02-24 04:15:21,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:21,739 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2021-02-24 04:15:21,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-02-24 04:15:21,740 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 35 [2021-02-24 04:15:21,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:21,742 INFO L225 Difference]: With dead ends: 44 [2021-02-24 04:15:21,742 INFO L226 Difference]: Without dead ends: 38 [2021-02-24 04:15:21,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:15:21,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-02-24 04:15:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2021-02-24 04:15:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-02-24 04:15:21,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2021-02-24 04:15:21,769 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 35 [2021-02-24 04:15:21,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:21,770 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2021-02-24 04:15:21,770 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 04:15:21,770 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2021-02-24 04:15:21,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-02-24 04:15:21,772 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:21,772 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-02-24 04:15:21,772 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 04:15:21,773 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:21,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:21,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1004193542, now seen corresponding path program 2 times [2021-02-24 04:15:21,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:21,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796045348] [2021-02-24 04:15:21,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:21,777 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:21,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:21,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:21,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:21,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:21,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:21,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:21,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-02-24 04:15:22,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796045348] [2021-02-24 04:15:22,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:22,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-24 04:15:22,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937439293] [2021-02-24 04:15:22,011 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-24 04:15:22,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:22,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-24 04:15:22,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-02-24 04:15:22,012 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 9 states. [2021-02-24 04:15:22,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:22,283 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2021-02-24 04:15:22,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 04:15:22,288 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2021-02-24 04:15:22,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:22,290 INFO L225 Difference]: With dead ends: 49 [2021-02-24 04:15:22,290 INFO L226 Difference]: Without dead ends: 43 [2021-02-24 04:15:22,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:15:22,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-02-24 04:15:22,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-02-24 04:15:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2021-02-24 04:15:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2021-02-24 04:15:22,308 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 44 [2021-02-24 04:15:22,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:22,309 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2021-02-24 04:15:22,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-24 04:15:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2021-02-24 04:15:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-24 04:15:22,311 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:22,311 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 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] [2021-02-24 04:15:22,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 04:15:22,312 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:22,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:22,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1655724848, now seen corresponding path program 3 times [2021-02-24 04:15:22,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:22,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245462759] [2021-02-24 04:15:22,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:22,315 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:22,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:22,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:22,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:22,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:22,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-02-24 04:15:22,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245462759] [2021-02-24 04:15:22,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:22,537 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-24 04:15:22,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027422230] [2021-02-24 04:15:22,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-24 04:15:22,538 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:22,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-24 04:15:22,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-02-24 04:15:22,539 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 10 states. [2021-02-24 04:15:22,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:22,880 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2021-02-24 04:15:22,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-24 04:15:22,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 53 [2021-02-24 04:15:22,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:22,883 INFO L225 Difference]: With dead ends: 54 [2021-02-24 04:15:22,883 INFO L226 Difference]: Without dead ends: 48 [2021-02-24 04:15:22,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:15:22,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-02-24 04:15:22,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2021-02-24 04:15:22,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-02-24 04:15:22,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2021-02-24 04:15:22,897 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 53 [2021-02-24 04:15:22,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:22,897 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2021-02-24 04:15:22,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-24 04:15:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2021-02-24 04:15:22,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-02-24 04:15:22,899 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:22,900 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 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] [2021-02-24 04:15:22,900 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 04:15:22,900 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:22,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:22,901 INFO L82 PathProgramCache]: Analyzing trace with hash 54098690, now seen corresponding path program 4 times [2021-02-24 04:15:22,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:22,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354733159] [2021-02-24 04:15:22,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:22,903 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:22,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:22,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:22,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:23,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-02-24 04:15:23,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354733159] [2021-02-24 04:15:23,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:23,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-24 04:15:23,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130152566] [2021-02-24 04:15:23,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-24 04:15:23,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:23,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-24 04:15:23,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-24 04:15:23,152 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 11 states. [2021-02-24 04:15:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:23,505 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2021-02-24 04:15:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-24 04:15:23,506 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 62 [2021-02-24 04:15:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:23,507 INFO L225 Difference]: With dead ends: 59 [2021-02-24 04:15:23,508 INFO L226 Difference]: Without dead ends: 53 [2021-02-24 04:15:23,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2021-02-24 04:15:23,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-02-24 04:15:23,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-02-24 04:15:23,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-02-24 04:15:23,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2021-02-24 04:15:23,522 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 62 [2021-02-24 04:15:23,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:23,523 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2021-02-24 04:15:23,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-24 04:15:23,523 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2021-02-24 04:15:23,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-24 04:15:23,524 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:23,525 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 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] [2021-02-24 04:15:23,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 04:15:23,525 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:23,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:23,526 INFO L82 PathProgramCache]: Analyzing trace with hash -406982872, now seen corresponding path program 5 times [2021-02-24 04:15:23,526 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:23,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1362898912] [2021-02-24 04:15:23,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:23,528 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:23,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:23,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:23,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:23,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:23,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:23,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:23,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:23,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-02-24 04:15:23,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1362898912] [2021-02-24 04:15:23,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:23,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-24 04:15:23,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136923530] [2021-02-24 04:15:23,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-24 04:15:23,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:23,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-24 04:15:23,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-02-24 04:15:23,797 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 12 states. [2021-02-24 04:15:24,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:24,278 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2021-02-24 04:15:24,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-24 04:15:24,278 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 71 [2021-02-24 04:15:24,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:24,280 INFO L225 Difference]: With dead ends: 64 [2021-02-24 04:15:24,280 INFO L226 Difference]: Without dead ends: 58 [2021-02-24 04:15:24,282 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:15:24,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-02-24 04:15:24,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-02-24 04:15:24,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2021-02-24 04:15:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2021-02-24 04:15:24,298 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 71 [2021-02-24 04:15:24,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:24,299 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2021-02-24 04:15:24,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-24 04:15:24,299 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2021-02-24 04:15:24,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-02-24 04:15:24,300 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:24,301 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 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] [2021-02-24 04:15:24,301 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 04:15:24,301 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:24,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:24,302 INFO L82 PathProgramCache]: Analyzing trace with hash 507179274, now seen corresponding path program 6 times [2021-02-24 04:15:24,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:24,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422784760] [2021-02-24 04:15:24,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:24,304 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:24,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:24,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:24,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:24,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:24,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:24,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:24,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:24,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:24,661 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2021-02-24 04:15:24,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422784760] [2021-02-24 04:15:24,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:24,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-24 04:15:24,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978133487] [2021-02-24 04:15:24,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-24 04:15:24,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:24,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-24 04:15:24,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2021-02-24 04:15:24,663 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 13 states. [2021-02-24 04:15:25,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:25,128 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2021-02-24 04:15:25,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-24 04:15:25,129 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 80 [2021-02-24 04:15:25,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:25,131 INFO L225 Difference]: With dead ends: 69 [2021-02-24 04:15:25,131 INFO L226 Difference]: Without dead ends: 63 [2021-02-24 04:15:25,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=317, Unknown=0, NotChecked=0, Total=462 [2021-02-24 04:15:25,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-02-24 04:15:25,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-02-24 04:15:25,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-24 04:15:25,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2021-02-24 04:15:25,148 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2021-02-24 04:15:25,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:25,148 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2021-02-24 04:15:25,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-24 04:15:25,148 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2021-02-24 04:15:25,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-24 04:15:25,150 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:25,150 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:25,150 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 04:15:25,151 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:25,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:25,151 INFO L82 PathProgramCache]: Analyzing trace with hash -326332640, now seen corresponding path program 7 times [2021-02-24 04:15:25,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:25,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704737486] [2021-02-24 04:15:25,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:25,154 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:25,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:25,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:25,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:25,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:25,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:25,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:25,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:25,519 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-02-24 04:15:25,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704737486] [2021-02-24 04:15:25,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:25,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-24 04:15:25,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081249154] [2021-02-24 04:15:25,520 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-24 04:15:25,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:25,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-24 04:15:25,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-02-24 04:15:25,522 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 14 states. [2021-02-24 04:15:26,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:26,040 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2021-02-24 04:15:26,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-24 04:15:26,040 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 89 [2021-02-24 04:15:26,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:26,047 INFO L225 Difference]: With dead ends: 74 [2021-02-24 04:15:26,048 INFO L226 Difference]: Without dead ends: 68 [2021-02-24 04:15:26,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=175, Invalid=377, Unknown=0, NotChecked=0, Total=552 [2021-02-24 04:15:26,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-02-24 04:15:26,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2021-02-24 04:15:26,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2021-02-24 04:15:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2021-02-24 04:15:26,087 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 89 [2021-02-24 04:15:26,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:26,088 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2021-02-24 04:15:26,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-24 04:15:26,088 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2021-02-24 04:15:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-02-24 04:15:26,093 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:26,098 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:26,098 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 04:15:26,099 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:26,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:26,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1949113106, now seen corresponding path program 8 times [2021-02-24 04:15:26,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:26,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [697870945] [2021-02-24 04:15:26,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:26,104 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:26,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:26,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:26,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:26,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,216 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,216 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:26,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:26,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:26,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:26,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:26,530 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2021-02-24 04:15:26,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [697870945] [2021-02-24 04:15:26,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:26,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-24 04:15:26,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929659479] [2021-02-24 04:15:26,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-24 04:15:26,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:26,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-24 04:15:26,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-02-24 04:15:26,533 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 15 states. [2021-02-24 04:15:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:27,080 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2021-02-24 04:15:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-24 04:15:27,081 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 98 [2021-02-24 04:15:27,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:27,083 INFO L225 Difference]: With dead ends: 79 [2021-02-24 04:15:27,083 INFO L226 Difference]: Without dead ends: 73 [2021-02-24 04:15:27,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=208, Invalid=442, Unknown=0, NotChecked=0, Total=650 [2021-02-24 04:15:27,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-02-24 04:15:27,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-02-24 04:15:27,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2021-02-24 04:15:27,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2021-02-24 04:15:27,130 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 98 [2021-02-24 04:15:27,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:27,130 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2021-02-24 04:15:27,130 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-24 04:15:27,131 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2021-02-24 04:15:27,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-02-24 04:15:27,132 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:27,132 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:27,133 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 04:15:27,133 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:27,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:27,134 INFO L82 PathProgramCache]: Analyzing trace with hash 1213774616, now seen corresponding path program 9 times [2021-02-24 04:15:27,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:27,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565534315] [2021-02-24 04:15:27,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:27,137 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:27,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:27,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:27,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,345 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:27,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:27,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:27,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:27,583 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2021-02-24 04:15:27,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565534315] [2021-02-24 04:15:27,583 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:27,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 04:15:27,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751251278] [2021-02-24 04:15:27,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 04:15:27,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:27,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 04:15:27,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2021-02-24 04:15:27,585 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 16 states. [2021-02-24 04:15:28,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:28,182 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2021-02-24 04:15:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-24 04:15:28,182 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 107 [2021-02-24 04:15:28,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:28,184 INFO L225 Difference]: With dead ends: 84 [2021-02-24 04:15:28,184 INFO L226 Difference]: Without dead ends: 78 [2021-02-24 04:15:28,185 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2021-02-24 04:15:28,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-02-24 04:15:28,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-02-24 04:15:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2021-02-24 04:15:28,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2021-02-24 04:15:28,200 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 107 [2021-02-24 04:15:28,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:28,201 INFO L480 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2021-02-24 04:15:28,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 04:15:28,201 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2021-02-24 04:15:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-02-24 04:15:28,202 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:28,202 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:28,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 04:15:28,202 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:28,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:28,203 INFO L82 PathProgramCache]: Analyzing trace with hash -241993446, now seen corresponding path program 10 times [2021-02-24 04:15:28,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:28,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068490037] [2021-02-24 04:15:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:28,205 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:28,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:28,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:28,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:28,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,373 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,402 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,618 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:28,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:28,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:28,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:28,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-02-24 04:15:28,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068490037] [2021-02-24 04:15:28,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:28,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-24 04:15:28,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465227474] [2021-02-24 04:15:28,757 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-24 04:15:28,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:28,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-24 04:15:28,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2021-02-24 04:15:28,758 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 17 states. [2021-02-24 04:15:29,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:29,423 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2021-02-24 04:15:29,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-24 04:15:29,424 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 116 [2021-02-24 04:15:29,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:29,425 INFO L225 Difference]: With dead ends: 89 [2021-02-24 04:15:29,425 INFO L226 Difference]: Without dead ends: 83 [2021-02-24 04:15:29,427 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:15:29,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-02-24 04:15:29,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-02-24 04:15:29,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2021-02-24 04:15:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2021-02-24 04:15:29,440 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 116 [2021-02-24 04:15:29,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:29,440 INFO L480 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2021-02-24 04:15:29,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-24 04:15:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2021-02-24 04:15:29,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-02-24 04:15:29,442 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:29,442 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:29,442 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 04:15:29,442 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:29,443 INFO L82 PathProgramCache]: Analyzing trace with hash -790695152, now seen corresponding path program 11 times [2021-02-24 04:15:29,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:29,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155398609] [2021-02-24 04:15:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:29,445 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:29,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:29,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:29,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:29,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:29,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:29,908 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:29,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:29,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,066 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-02-24 04:15:30,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155398609] [2021-02-24 04:15:30,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:30,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-24 04:15:30,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827436868] [2021-02-24 04:15:30,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-24 04:15:30,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:30,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-24 04:15:30,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2021-02-24 04:15:30,068 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 18 states. [2021-02-24 04:15:30,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:30,789 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2021-02-24 04:15:30,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-02-24 04:15:30,790 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 125 [2021-02-24 04:15:30,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:30,792 INFO L225 Difference]: With dead ends: 94 [2021-02-24 04:15:30,792 INFO L226 Difference]: Without dead ends: 88 [2021-02-24 04:15:30,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=325, Invalid=667, Unknown=0, NotChecked=0, Total=992 [2021-02-24 04:15:30,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-02-24 04:15:30,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-02-24 04:15:30,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-02-24 04:15:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2021-02-24 04:15:30,808 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 125 [2021-02-24 04:15:30,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:30,808 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2021-02-24 04:15:30,808 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-24 04:15:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2021-02-24 04:15:30,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-02-24 04:15:30,810 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:30,810 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:30,811 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-24 04:15:30,811 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:30,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:30,811 INFO L82 PathProgramCache]: Analyzing trace with hash -126776542, now seen corresponding path program 12 times [2021-02-24 04:15:30,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:30,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1526845972] [2021-02-24 04:15:30,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:30,814 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:30,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:30,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:30,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:30,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:30,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:30,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:30,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:30,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:30,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,173 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,202 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,203 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,203 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,283 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:31,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:31,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:31,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:31,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:31,482 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2021-02-24 04:15:31,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1526845972] [2021-02-24 04:15:31,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:31,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-24 04:15:31,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592652772] [2021-02-24 04:15:31,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-24 04:15:31,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:31,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-24 04:15:31,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=215, Unknown=0, NotChecked=0, Total=342 [2021-02-24 04:15:31,486 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 19 states. [2021-02-24 04:15:32,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:32,251 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2021-02-24 04:15:32,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-24 04:15:32,252 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 134 [2021-02-24 04:15:32,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:32,253 INFO L225 Difference]: With dead ends: 99 [2021-02-24 04:15:32,253 INFO L226 Difference]: Without dead ends: 93 [2021-02-24 04:15:32,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=370, Invalid=752, Unknown=0, NotChecked=0, Total=1122 [2021-02-24 04:15:32,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-02-24 04:15:32,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-02-24 04:15:32,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2021-02-24 04:15:32,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2021-02-24 04:15:32,277 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 134 [2021-02-24 04:15:32,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:32,278 INFO L480 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2021-02-24 04:15:32,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-24 04:15:32,278 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2021-02-24 04:15:32,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-24 04:15:32,280 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:32,280 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:32,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-24 04:15:32,280 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:32,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:32,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1918613256, now seen corresponding path program 13 times [2021-02-24 04:15:32,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:32,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431135107] [2021-02-24 04:15:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:32,284 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:32,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:32,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:32,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:32,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:32,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,434 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,600 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:32,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:32,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:32,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:32,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:33,018 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2021-02-24 04:15:33,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431135107] [2021-02-24 04:15:33,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:33,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-24 04:15:33,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640440404] [2021-02-24 04:15:33,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-24 04:15:33,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:33,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-24 04:15:33,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2021-02-24 04:15:33,021 INFO L87 Difference]: Start difference. First operand 93 states and 94 transitions. Second operand 20 states. [2021-02-24 04:15:33,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:33,867 INFO L93 Difference]: Finished difference Result 104 states and 105 transitions. [2021-02-24 04:15:33,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-24 04:15:33,867 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 143 [2021-02-24 04:15:33,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:33,870 INFO L225 Difference]: With dead ends: 104 [2021-02-24 04:15:33,870 INFO L226 Difference]: Without dead ends: 98 [2021-02-24 04:15:33,871 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=418, Invalid=842, Unknown=0, NotChecked=0, Total=1260 [2021-02-24 04:15:33,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-02-24 04:15:33,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2021-02-24 04:15:33,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-02-24 04:15:33,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 99 transitions. [2021-02-24 04:15:33,896 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 99 transitions. Word has length 143 [2021-02-24 04:15:33,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:33,899 INFO L480 AbstractCegarLoop]: Abstraction has 98 states and 99 transitions. [2021-02-24 04:15:33,899 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-24 04:15:33,899 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 99 transitions. [2021-02-24 04:15:33,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-02-24 04:15:33,904 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:33,904 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:33,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-24 04:15:33,905 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:33,905 INFO L82 PathProgramCache]: Analyzing trace with hash 1212862762, now seen corresponding path program 14 times [2021-02-24 04:15:33,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:33,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [277973349] [2021-02-24 04:15:33,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:33,910 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:33,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:33,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:33,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:33,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:33,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:33,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:33,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:34,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:34,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,352 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,567 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,594 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,621 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:34,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:34,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:34,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:34,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:34,880 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2021-02-24 04:15:34,881 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [277973349] [2021-02-24 04:15:34,881 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:34,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-24 04:15:34,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004997491] [2021-02-24 04:15:34,882 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-24 04:15:34,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:34,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-24 04:15:34,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=260, Unknown=0, NotChecked=0, Total=420 [2021-02-24 04:15:34,884 INFO L87 Difference]: Start difference. First operand 98 states and 99 transitions. Second operand 21 states. [2021-02-24 04:15:35,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:35,762 INFO L93 Difference]: Finished difference Result 109 states and 110 transitions. [2021-02-24 04:15:35,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-24 04:15:35,763 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 152 [2021-02-24 04:15:35,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:35,764 INFO L225 Difference]: With dead ends: 109 [2021-02-24 04:15:35,764 INFO L226 Difference]: Without dead ends: 103 [2021-02-24 04:15:35,765 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 256 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=469, Invalid=937, Unknown=0, NotChecked=0, Total=1406 [2021-02-24 04:15:35,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2021-02-24 04:15:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2021-02-24 04:15:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2021-02-24 04:15:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 104 transitions. [2021-02-24 04:15:35,784 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 104 transitions. Word has length 152 [2021-02-24 04:15:35,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:35,786 INFO L480 AbstractCegarLoop]: Abstraction has 103 states and 104 transitions. [2021-02-24 04:15:35,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-24 04:15:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 104 transitions. [2021-02-24 04:15:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-24 04:15:35,788 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:35,788 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:35,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-24 04:15:35,789 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:35,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:35,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1200326400, now seen corresponding path program 15 times [2021-02-24 04:15:35,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:35,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110714924] [2021-02-24 04:15:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:35,793 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:35,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:35,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:35,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:35,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:35,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:35,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:35,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:35,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:35,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:35,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:35,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:35,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:35,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:35,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:35,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:36,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:36,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:36,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:36,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:36,728 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2021-02-24 04:15:36,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110714924] [2021-02-24 04:15:36,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:36,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-24 04:15:36,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550023645] [2021-02-24 04:15:36,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-24 04:15:36,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:36,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-24 04:15:36,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=284, Unknown=0, NotChecked=0, Total=462 [2021-02-24 04:15:36,731 INFO L87 Difference]: Start difference. First operand 103 states and 104 transitions. Second operand 22 states. [2021-02-24 04:15:37,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:37,611 INFO L93 Difference]: Finished difference Result 114 states and 115 transitions. [2021-02-24 04:15:37,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-24 04:15:37,612 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 161 [2021-02-24 04:15:37,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:37,613 INFO L225 Difference]: With dead ends: 114 [2021-02-24 04:15:37,613 INFO L226 Difference]: Without dead ends: 108 [2021-02-24 04:15:37,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 289 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=523, Invalid=1037, Unknown=0, NotChecked=0, Total=1560 [2021-02-24 04:15:37,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2021-02-24 04:15:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2021-02-24 04:15:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2021-02-24 04:15:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 109 transitions. [2021-02-24 04:15:37,630 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 109 transitions. Word has length 161 [2021-02-24 04:15:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:37,630 INFO L480 AbstractCegarLoop]: Abstraction has 108 states and 109 transitions. [2021-02-24 04:15:37,630 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-24 04:15:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 109 transitions. [2021-02-24 04:15:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-02-24 04:15:37,632 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:37,633 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:37,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-24 04:15:37,633 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:37,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:37,634 INFO L82 PathProgramCache]: Analyzing trace with hash -433927374, now seen corresponding path program 16 times [2021-02-24 04:15:37,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:37,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618994585] [2021-02-24 04:15:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:37,636 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:37,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:37,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:37,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,899 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,899 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:37,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:37,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:37,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:38,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:38,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:38,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:38,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:38,557 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-02-24 04:15:38,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618994585] [2021-02-24 04:15:38,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:38,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-02-24 04:15:38,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801631964] [2021-02-24 04:15:38,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-24 04:15:38,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:38,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-24 04:15:38,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=309, Unknown=0, NotChecked=0, Total=506 [2021-02-24 04:15:38,560 INFO L87 Difference]: Start difference. First operand 108 states and 109 transitions. Second operand 23 states. [2021-02-24 04:15:39,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:39,611 INFO L93 Difference]: Finished difference Result 119 states and 120 transitions. [2021-02-24 04:15:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-02-24 04:15:39,611 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 170 [2021-02-24 04:15:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:39,613 INFO L225 Difference]: With dead ends: 119 [2021-02-24 04:15:39,613 INFO L226 Difference]: Without dead ends: 113 [2021-02-24 04:15:39,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 324 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=580, Invalid=1142, Unknown=0, NotChecked=0, Total=1722 [2021-02-24 04:15:39,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-02-24 04:15:39,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-02-24 04:15:39,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2021-02-24 04:15:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 114 transitions. [2021-02-24 04:15:39,631 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 114 transitions. Word has length 170 [2021-02-24 04:15:39,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:39,631 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 114 transitions. [2021-02-24 04:15:39,631 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-24 04:15:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 114 transitions. [2021-02-24 04:15:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-02-24 04:15:39,633 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:39,634 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:39,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-24 04:15:39,634 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:39,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1314200840, now seen corresponding path program 17 times [2021-02-24 04:15:39,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:39,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682451264] [2021-02-24 04:15:39,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:39,637 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:39,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:39,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:39,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:39,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:39,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:39,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:39,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:39,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:39,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:39,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:40,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:40,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:40,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:40,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:40,576 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2021-02-24 04:15:40,577 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682451264] [2021-02-24 04:15:40,577 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:40,577 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-24 04:15:40,577 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521965223] [2021-02-24 04:15:40,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-24 04:15:40,578 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:40,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-24 04:15:40,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=335, Unknown=0, NotChecked=0, Total=552 [2021-02-24 04:15:40,578 INFO L87 Difference]: Start difference. First operand 113 states and 114 transitions. Second operand 24 states. [2021-02-24 04:15:41,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:41,698 INFO L93 Difference]: Finished difference Result 124 states and 125 transitions. [2021-02-24 04:15:41,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-02-24 04:15:41,698 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 179 [2021-02-24 04:15:41,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:41,701 INFO L225 Difference]: With dead ends: 124 [2021-02-24 04:15:41,701 INFO L226 Difference]: Without dead ends: 118 [2021-02-24 04:15:41,702 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=640, Invalid=1252, Unknown=0, NotChecked=0, Total=1892 [2021-02-24 04:15:41,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-02-24 04:15:41,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-02-24 04:15:41,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-24 04:15:41,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 119 transitions. [2021-02-24 04:15:41,718 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 119 transitions. Word has length 179 [2021-02-24 04:15:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:41,718 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 119 transitions. [2021-02-24 04:15:41,718 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-24 04:15:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 119 transitions. [2021-02-24 04:15:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-02-24 04:15:41,721 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:41,721 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:41,721 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-24 04:15:41,721 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:41,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:41,722 INFO L82 PathProgramCache]: Analyzing trace with hash 75299130, now seen corresponding path program 18 times [2021-02-24 04:15:41,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:41,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263354061] [2021-02-24 04:15:41,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:41,724 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:41,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:41,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:41,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:41,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:41,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:41,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:41,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:41,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:41,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:41,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:41,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,404 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,567 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,568 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:42,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:42,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:42,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:42,934 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2021-02-24 04:15:42,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263354061] [2021-02-24 04:15:42,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:42,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-24 04:15:42,935 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016530840] [2021-02-24 04:15:42,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-24 04:15:42,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:42,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-24 04:15:42,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=362, Unknown=0, NotChecked=0, Total=600 [2021-02-24 04:15:42,937 INFO L87 Difference]: Start difference. First operand 118 states and 119 transitions. Second operand 25 states. [2021-02-24 04:15:44,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:44,138 INFO L93 Difference]: Finished difference Result 129 states and 130 transitions. [2021-02-24 04:15:44,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-24 04:15:44,141 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 188 [2021-02-24 04:15:44,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:44,142 INFO L225 Difference]: With dead ends: 129 [2021-02-24 04:15:44,142 INFO L226 Difference]: Without dead ends: 123 [2021-02-24 04:15:44,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=703, Invalid=1367, Unknown=0, NotChecked=0, Total=2070 [2021-02-24 04:15:44,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2021-02-24 04:15:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2021-02-24 04:15:44,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-02-24 04:15:44,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 124 transitions. [2021-02-24 04:15:44,159 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 124 transitions. Word has length 188 [2021-02-24 04:15:44,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:44,160 INFO L480 AbstractCegarLoop]: Abstraction has 123 states and 124 transitions. [2021-02-24 04:15:44,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-24 04:15:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 124 transitions. [2021-02-24 04:15:44,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-02-24 04:15:44,163 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:44,163 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:44,163 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-24 04:15:44,163 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:44,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1886800624, now seen corresponding path program 19 times [2021-02-24 04:15:44,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:44,164 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062842160] [2021-02-24 04:15:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:44,166 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:44,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:44,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:44,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,373 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,712 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,916 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:44,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:44,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:44,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:45,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:45,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:45,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:45,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:45,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:45,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:45,342 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2021-02-24 04:15:45,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062842160] [2021-02-24 04:15:45,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:45,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-24 04:15:45,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231048950] [2021-02-24 04:15:45,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-24 04:15:45,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:45,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-24 04:15:45,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=390, Unknown=0, NotChecked=0, Total=650 [2021-02-24 04:15:45,344 INFO L87 Difference]: Start difference. First operand 123 states and 124 transitions. Second operand 26 states. [2021-02-24 04:15:46,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:46,591 INFO L93 Difference]: Finished difference Result 134 states and 135 transitions. [2021-02-24 04:15:46,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-24 04:15:46,591 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 197 [2021-02-24 04:15:46,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:46,594 INFO L225 Difference]: With dead ends: 134 [2021-02-24 04:15:46,594 INFO L226 Difference]: Without dead ends: 128 [2021-02-24 04:15:46,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 441 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=769, Invalid=1487, Unknown=0, NotChecked=0, Total=2256 [2021-02-24 04:15:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-02-24 04:15:46,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2021-02-24 04:15:46,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2021-02-24 04:15:46,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2021-02-24 04:15:46,612 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 197 [2021-02-24 04:15:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:46,612 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2021-02-24 04:15:46,612 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-02-24 04:15:46,613 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2021-02-24 04:15:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-24 04:15:46,615 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:46,616 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:46,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-24 04:15:46,616 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:46,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:46,616 INFO L82 PathProgramCache]: Analyzing trace with hash -346236094, now seen corresponding path program 20 times [2021-02-24 04:15:46,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:46,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1763542518] [2021-02-24 04:15:46,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:46,619 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:46,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:46,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:46,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:46,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:46,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:46,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:46,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:46,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:46,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,018 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,292 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:47,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:47,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:47,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:47,967 INFO L134 CoverageAnalysis]: Checked inductivity of 820 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2021-02-24 04:15:47,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1763542518] [2021-02-24 04:15:47,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:47,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-24 04:15:47,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749789823] [2021-02-24 04:15:47,968 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-24 04:15:47,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:47,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-24 04:15:47,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=283, Invalid=419, Unknown=0, NotChecked=0, Total=702 [2021-02-24 04:15:47,969 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand 27 states. [2021-02-24 04:15:49,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:49,359 INFO L93 Difference]: Finished difference Result 139 states and 140 transitions. [2021-02-24 04:15:49,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-02-24 04:15:49,361 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 206 [2021-02-24 04:15:49,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:49,363 INFO L225 Difference]: With dead ends: 139 [2021-02-24 04:15:49,364 INFO L226 Difference]: Without dead ends: 133 [2021-02-24 04:15:49,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=838, Invalid=1612, Unknown=0, NotChecked=0, Total=2450 [2021-02-24 04:15:49,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-02-24 04:15:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-02-24 04:15:49,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2021-02-24 04:15:49,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 134 transitions. [2021-02-24 04:15:49,379 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 134 transitions. Word has length 206 [2021-02-24 04:15:49,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:49,379 INFO L480 AbstractCegarLoop]: Abstraction has 133 states and 134 transitions. [2021-02-24 04:15:49,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-02-24 04:15:49,379 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 134 transitions. [2021-02-24 04:15:49,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-02-24 04:15:49,384 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:49,384 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:49,384 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-24 04:15:49,384 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:49,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:49,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1171636504, now seen corresponding path program 21 times [2021-02-24 04:15:49,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:49,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720284263] [2021-02-24 04:15:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:49,389 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:49,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:49,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:49,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:49,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,783 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:49,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:49,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:49,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,088 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,217 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,256 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,257 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,257 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:50,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:50,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:50,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:50,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 903 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2021-02-24 04:15:50,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1720284263] [2021-02-24 04:15:50,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:50,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-02-24 04:15:50,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098031034] [2021-02-24 04:15:50,989 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-24 04:15:50,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:50,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-24 04:15:50,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=449, Unknown=0, NotChecked=0, Total=756 [2021-02-24 04:15:50,990 INFO L87 Difference]: Start difference. First operand 133 states and 134 transitions. Second operand 28 states. [2021-02-24 04:15:52,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:52,453 INFO L93 Difference]: Finished difference Result 144 states and 145 transitions. [2021-02-24 04:15:52,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-24 04:15:52,457 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 215 [2021-02-24 04:15:52,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:52,459 INFO L225 Difference]: With dead ends: 144 [2021-02-24 04:15:52,459 INFO L226 Difference]: Without dead ends: 138 [2021-02-24 04:15:52,461 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=910, Invalid=1742, Unknown=0, NotChecked=0, Total=2652 [2021-02-24 04:15:52,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2021-02-24 04:15:52,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2021-02-24 04:15:52,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2021-02-24 04:15:52,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 139 transitions. [2021-02-24 04:15:52,478 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 139 transitions. Word has length 215 [2021-02-24 04:15:52,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:52,479 INFO L480 AbstractCegarLoop]: Abstraction has 138 states and 139 transitions. [2021-02-24 04:15:52,479 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-02-24 04:15:52,479 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 139 transitions. [2021-02-24 04:15:52,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2021-02-24 04:15:52,480 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:52,481 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:52,481 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-24 04:15:52,481 INFO L428 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:52,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:52,482 INFO L82 PathProgramCache]: Analyzing trace with hash -532287158, now seen corresponding path program 22 times [2021-02-24 04:15:52,482 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:52,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786719849] [2021-02-24 04:15:52,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:52,484 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:52,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:52,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:52,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:52,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:52,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,918 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:52,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:52,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:52,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:52,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,452 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:53,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:53,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:53,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:53,981 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-02-24 04:15:53,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786719849] [2021-02-24 04:15:53,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:53,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-02-24 04:15:53,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658408316] [2021-02-24 04:15:53,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-24 04:15:53,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:53,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-24 04:15:53,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=480, Unknown=0, NotChecked=0, Total=812 [2021-02-24 04:15:53,983 INFO L87 Difference]: Start difference. First operand 138 states and 139 transitions. Second operand 29 states. [2021-02-24 04:15:55,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:55,464 INFO L93 Difference]: Finished difference Result 149 states and 150 transitions. [2021-02-24 04:15:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-24 04:15:55,465 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 224 [2021-02-24 04:15:55,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:55,467 INFO L225 Difference]: With dead ends: 149 [2021-02-24 04:15:55,467 INFO L226 Difference]: Without dead ends: 143 [2021-02-24 04:15:55,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=985, Invalid=1877, Unknown=0, NotChecked=0, Total=2862 [2021-02-24 04:15:55,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2021-02-24 04:15:55,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2021-02-24 04:15:55,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2021-02-24 04:15:55,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 144 transitions. [2021-02-24 04:15:55,485 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 144 transitions. Word has length 224 [2021-02-24 04:15:55,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:55,486 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 144 transitions. [2021-02-24 04:15:55,486 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-02-24 04:15:55,486 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 144 transitions. [2021-02-24 04:15:55,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-24 04:15:55,488 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:55,488 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:55,488 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-24 04:15:55,488 INFO L428 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:55,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:55,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1401110240, now seen corresponding path program 23 times [2021-02-24 04:15:55,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:55,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210507616] [2021-02-24 04:15:55,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:55,491 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,556 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:55,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:55,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:55,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:55,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:55,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:55,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:55,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,351 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,574 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,640 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:56,671 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:56,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:15:56,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:56,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1081 trivial. 0 not checked. [2021-02-24 04:15:57,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210507616] [2021-02-24 04:15:57,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:15:57,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-24 04:15:57,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197955220] [2021-02-24 04:15:57,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-24 04:15:57,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:15:57,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-24 04:15:57,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=358, Invalid=512, Unknown=0, NotChecked=0, Total=870 [2021-02-24 04:15:57,082 INFO L87 Difference]: Start difference. First operand 143 states and 144 transitions. Second operand 30 states. [2021-02-24 04:15:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:15:58,641 INFO L93 Difference]: Finished difference Result 154 states and 155 transitions. [2021-02-24 04:15:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-02-24 04:15:58,642 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 233 [2021-02-24 04:15:58,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:15:58,648 INFO L225 Difference]: With dead ends: 154 [2021-02-24 04:15:58,648 INFO L226 Difference]: Without dead ends: 148 [2021-02-24 04:15:58,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1063, Invalid=2017, Unknown=0, NotChecked=0, Total=3080 [2021-02-24 04:15:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-02-24 04:15:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-02-24 04:15:58,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-02-24 04:15:58,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 149 transitions. [2021-02-24 04:15:58,668 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 149 transitions. Word has length 233 [2021-02-24 04:15:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:15:58,669 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 149 transitions. [2021-02-24 04:15:58,669 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-24 04:15:58,669 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 149 transitions. [2021-02-24 04:15:58,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2021-02-24 04:15:58,670 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:15:58,670 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:15:58,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-24 04:15:58,670 INFO L428 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:15:58,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:15:58,671 INFO L82 PathProgramCache]: Analyzing trace with hash 238795602, now seen corresponding path program 24 times [2021-02-24 04:15:58,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:15:58,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2042322547] [2021-02-24 04:15:58,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:15:58,674 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:15:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:58,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:58,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:58,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:15:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:58,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:15:58,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:15:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:58,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:58,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:58,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:58,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:58,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:58,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:58,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,117 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,166 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,722 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,826 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,827 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:15:59,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:15:59,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:15:59,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:15:59,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:00,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:00,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:00,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1176 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2021-02-24 04:16:00,583 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2042322547] [2021-02-24 04:16:00,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:00,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-24 04:16:00,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031457739] [2021-02-24 04:16:00,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-24 04:16:00,584 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:00,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-24 04:16:00,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=385, Invalid=545, Unknown=0, NotChecked=0, Total=930 [2021-02-24 04:16:00,585 INFO L87 Difference]: Start difference. First operand 148 states and 149 transitions. Second operand 31 states. [2021-02-24 04:16:02,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:02,211 INFO L93 Difference]: Finished difference Result 159 states and 160 transitions. [2021-02-24 04:16:02,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-24 04:16:02,213 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 242 [2021-02-24 04:16:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:02,215 INFO L225 Difference]: With dead ends: 159 [2021-02-24 04:16:02,216 INFO L226 Difference]: Without dead ends: 153 [2021-02-24 04:16:02,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 676 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1144, Invalid=2162, Unknown=0, NotChecked=0, Total=3306 [2021-02-24 04:16:02,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-02-24 04:16:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2021-02-24 04:16:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2021-02-24 04:16:02,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 154 transitions. [2021-02-24 04:16:02,235 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 154 transitions. Word has length 242 [2021-02-24 04:16:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:02,236 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 154 transitions. [2021-02-24 04:16:02,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-24 04:16:02,236 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 154 transitions. [2021-02-24 04:16:02,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-02-24 04:16:02,237 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 04:16:02,238 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 04:16:02,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-24 04:16:02,238 INFO L428 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 04:16:02,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 04:16:02,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1480733992, now seen corresponding path program 25 times [2021-02-24 04:16:02,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 04:16:02,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647393454] [2021-02-24 04:16:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 04:16:02,241 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 04:16:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:02,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:02,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:02,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:02,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:16:02,409 WARN L141 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size [2021-02-24 04:16:02,410 WARN L147 QuantifierPusher]: treesize reduction 7, result has 76.7 percent of original size 23 [2021-02-24 04:16:02,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:02,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 04:16:02,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:02,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 04:16:02,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-02-24 04:16:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:02,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:02,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:02,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:02,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:02,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:02,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:02,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:02,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:02,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:02,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:02,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,080 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,317 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,318 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,776 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:03,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:03,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:03,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:03,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:03,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,403 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,519 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,721 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:04,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:04,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:04,842 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,843 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:04,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:04,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,372 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,374 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:16:05,817 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-02-24 04:16:05,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-02-24 04:16:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 04:16:05,965 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 04:16:05,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,967 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 04:16:05,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:05,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-24 04:16:06,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 04:16:06,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-24 04:16:07,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1275 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2021-02-24 04:16:07,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647393454] [2021-02-24 04:16:07,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 04:16:07,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-02-24 04:16:07,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541360800] [2021-02-24 04:16:07,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-02-24 04:16:07,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 04:16:07,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-02-24 04:16:07,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=3055, Unknown=0, NotChecked=0, Total=3782 [2021-02-24 04:16:07,067 INFO L87 Difference]: Start difference. First operand 153 states and 154 transitions. Second operand 62 states. [2021-02-24 04:16:20,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 04:16:20,735 INFO L93 Difference]: Finished difference Result 153 states and 154 transitions. [2021-02-24 04:16:20,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-02-24 04:16:20,735 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 251 [2021-02-24 04:16:20,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 04:16:20,736 INFO L225 Difference]: With dead ends: 153 [2021-02-24 04:16:20,737 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 04:16:20,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3032 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=4325, Invalid=17137, Unknown=0, NotChecked=0, Total=21462 [2021-02-24 04:16:20,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 04:16:20,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 04:16:20,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 04:16:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 04:16:20,745 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 251 [2021-02-24 04:16:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 04:16:20,745 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 04:16:20,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 62 states. [2021-02-24 04:16:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 04:16:20,746 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 04:16:20,746 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-24 04:16:20,748 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 04:16:20,878 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 122 [2021-02-24 04:16:21,073 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 119 [2021-02-24 04:16:21,597 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 122 [2021-02-24 04:16:23,204 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 208 DAG size of output: 161 [2021-02-24 04:16:24,668 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 181 DAG size of output: 134 [2021-02-24 04:16:26,037 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 181 DAG size of output: 134 [2021-02-24 04:16:27,492 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 187 DAG size of output: 137 [2021-02-24 04:16:28,950 WARN L202 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 187 DAG size of output: 137 [2021-02-24 04:16:29,107 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 04:16:29,107 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 04:16:29,107 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 04:16:29,107 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,107 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,107 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,108 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,109 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 04:16:29,109 INFO L185 CegarLoopUtils]: At program point sumEXIT(lines 5 11) the Hoare annotation is: (let ((.cse3 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#res| .cse3))) (or (and .cse0 (<= (+ |sum_#in~m| 25) |sum_#res|) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= (+ |sum_#in~m| 9) |sum_#res|) (<= |sum_#in~n| 9)) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#res|) .cse1 (<= |sum_#in~n| 1) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 3) .cse2 (<= (+ |sum_#in~m| 3) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 19) .cse1 .cse2 (<= (+ |sum_#in~m| 19) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 4) .cse1 .cse2 (<= (+ |sum_#in~m| 4) |sum_#res|)) (and .cse0 .cse1 .cse2 (<= (+ |sum_#in~m| 21) |sum_#res|) (<= |sum_#in~n| 21)) (and .cse0 (<= (+ |sum_#in~m| 14) |sum_#res|) .cse1 (<= |sum_#in~n| 14) .cse2) (and .cse0 (<= (+ |sum_#in~m| 16) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 16)) (and .cse0 .cse1 .cse2 (<= |sum_#in~n| 12) (<= (+ |sum_#in~m| 12) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 15) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 15)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 23) |sum_#res|) .cse2 (<= |sum_#in~n| 23)) (and .cse0 (<= (+ |sum_#in~m| 11) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 11)) (and .cse0 (<= |sum_#in~n| 22) .cse1 .cse2 (<= (+ |sum_#in~m| 22) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 6) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 6)) (and .cse0 (<= |sum_#in~n| 17) .cse1 .cse2 (<= (+ |sum_#in~m| 17) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 24) |sum_#res|) (<= |sum_#in~n| 24) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 10)) (and .cse0 .cse1 .cse2 (<= |sum_#in~n| 20) (<= (+ |sum_#in~m| 20) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 18) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 18)) (and .cse0 (<= (+ |sum_#in~m| 2) |sum_#res|) (<= |sum_#in~n| 2) .cse1 .cse2) (and .cse0 (<= |sum_#res| |sum_#in~m|) .cse1 (<= .cse3 |sum_#res|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) .cse2 (<= (+ |sum_#in~m| 8) |sum_#res|)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 7) |sum_#res|) (<= |sum_#in~n| 7) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 13) .cse2 (<= (+ |sum_#in~m| 13) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 5) .cse1 .cse2 (<= (+ |sum_#in~m| 5) |sum_#res|))))) [2021-02-24 04:16:29,109 INFO L185 CegarLoopUtils]: At program point L9(line 9) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (<= 1 sum_~n) (= sum_~m |sum_#in~m|)) [2021-02-24 04:16:29,110 INFO L185 CegarLoopUtils]: At program point L9-1(line 9) the Hoare annotation is: (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m|)))) (or (and .cse0 (<= |sum_#in~n| 24) .cse1 .cse2 (<= (+ |sum_#in~m| 24) |sum_#t~ret7|)) (and .cse0 .cse1 (<= |sum_#in~n| 6) (<= (+ |sum_#in~m| 6) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 22) |sum_#t~ret7|) (<= |sum_#in~n| 22) .cse1 .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 16) |sum_#t~ret7|) (<= |sum_#in~n| 16) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 23) |sum_#t~ret7|) (<= |sum_#in~n| 23) .cse2) (and .cse0 (<= (+ |sum_#in~m| 3) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 3) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 11) .cse2 (<= (+ |sum_#in~m| 11) |sum_#t~ret7|)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 10) |sum_#t~ret7|) .cse2 (<= |sum_#in~n| 10)) (and .cse0 (<= (+ |sum_#in~m| 4) |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 21) |sum_#t~ret7|) .cse1 .cse2 (<= |sum_#in~n| 21)) (and .cse0 .cse1 (<= |sum_#in~n| 20) (<= (+ |sum_#in~m| 20) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 12) (<= (+ |sum_#in~m| 12) |sum_#t~ret7|) .cse2) (and .cse0 (<= |sum_#in~n| 19) .cse1 (<= (+ |sum_#in~m| 19) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 7) (<= (+ |sum_#in~m| 7) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 1) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 15) .cse2 (<= (+ |sum_#in~m| 15) |sum_#t~ret7|)) (and .cse0 (<= |sum_#in~n| 2) .cse1 .cse2 (<= (+ |sum_#in~m| 2) |sum_#t~ret7|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) (<= (+ |sum_#in~m| 8) |sum_#t~ret7|) .cse2) (and .cse0 (<= |sum_#in~n| 17) .cse1 (<= (+ |sum_#in~m| 17) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 18) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 18) .cse2) (and .cse0 (<= |sum_#in~n| 5) .cse1 (<= (+ |sum_#in~m| 5) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 9) |sum_#t~ret7|) (<= |sum_#in~n| 9) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 13) |sum_#t~ret7|) (<= |sum_#in~n| 13) .cse2) (and .cse0 (<= (+ |sum_#in~m| 25) |sum_#t~ret7|) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 14) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 14) .cse2))) [2021-02-24 04:16:29,110 INFO L185 CegarLoopUtils]: At program point L7(line 7) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (<= sum_~n 0)) [2021-02-24 04:16:29,111 INFO L185 CegarLoopUtils]: At program point L9-2(line 9) the Hoare annotation is: (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#t~ret7| (+ |sum_#in~n| |sum_#in~m|)))) (or (and .cse0 (<= |sum_#in~n| 24) .cse1 .cse2 (<= (+ |sum_#in~m| 24) |sum_#t~ret7|)) (and .cse0 .cse1 (<= |sum_#in~n| 6) (<= (+ |sum_#in~m| 6) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 22) |sum_#t~ret7|) (<= |sum_#in~n| 22) .cse1 .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 16) |sum_#t~ret7|) (<= |sum_#in~n| 16) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 23) |sum_#t~ret7|) (<= |sum_#in~n| 23) .cse2) (and .cse0 (<= (+ |sum_#in~m| 3) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 3) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 11) .cse2 (<= (+ |sum_#in~m| 11) |sum_#t~ret7|)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 10) |sum_#t~ret7|) .cse2 (<= |sum_#in~n| 10)) (and .cse0 (<= (+ |sum_#in~m| 4) |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 21) |sum_#t~ret7|) .cse1 .cse2 (<= |sum_#in~n| 21)) (and .cse0 .cse1 (<= |sum_#in~n| 20) (<= (+ |sum_#in~m| 20) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 12) (<= (+ |sum_#in~m| 12) |sum_#t~ret7|) .cse2) (and .cse0 (<= |sum_#in~n| 19) .cse1 (<= (+ |sum_#in~m| 19) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 7) (<= (+ |sum_#in~m| 7) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 1) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 15) .cse2 (<= (+ |sum_#in~m| 15) |sum_#t~ret7|)) (and .cse0 (<= |sum_#in~n| 2) .cse1 .cse2 (<= (+ |sum_#in~m| 2) |sum_#t~ret7|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) (<= (+ |sum_#in~m| 8) |sum_#t~ret7|) .cse2) (and .cse0 (<= |sum_#in~n| 17) .cse1 (<= (+ |sum_#in~m| 17) |sum_#t~ret7|) .cse2) (and .cse0 (<= (+ |sum_#in~m| 18) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 18) .cse2) (and .cse0 (<= |sum_#in~n| 5) .cse1 (<= (+ |sum_#in~m| 5) |sum_#t~ret7|) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 9) |sum_#t~ret7|) (<= |sum_#in~n| 9) .cse2) (and .cse0 .cse1 (<= (+ |sum_#in~m| 13) |sum_#t~ret7|) (<= |sum_#in~n| 13) .cse2) (and .cse0 (<= (+ |sum_#in~m| 25) |sum_#t~ret7|) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 14) |sum_#t~ret7|) .cse1 (<= |sum_#in~n| 14) .cse2))) [2021-02-24 04:16:29,111 INFO L185 CegarLoopUtils]: At program point L6(lines 6 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|)) [2021-02-24 04:16:29,112 INFO L185 CegarLoopUtils]: At program point L9-3(line 9) the Hoare annotation is: (let ((.cse29 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse2 (= sum_~m |sum_#in~m|)) (.cse3 (<= |sum_#res| .cse29)) (.cse4 (<= |sum_#t~ret7| .cse29))) (or (let ((.cse1 (+ |sum_#in~m| 1))) (and .cse0 (<= .cse1 |sum_#t~ret7|) (<= .cse1 |sum_#res|) .cse2 (<= |sum_#in~n| 1) .cse3 .cse4)) (let ((.cse5 (+ |sum_#in~m| 23))) (and .cse0 .cse2 (<= .cse5 |sum_#res|) (<= .cse5 |sum_#t~ret7|) .cse3 (<= |sum_#in~n| 23) .cse4)) (let ((.cse6 (+ |sum_#in~m| 21))) (and .cse0 (<= .cse6 |sum_#t~ret7|) .cse2 .cse3 (<= .cse6 |sum_#res|) .cse4 (<= |sum_#in~n| 21))) (let ((.cse7 (+ |sum_#in~m| 3))) (and .cse0 (<= .cse7 |sum_#t~ret7|) .cse2 (<= |sum_#in~n| 3) .cse3 (<= .cse7 |sum_#res|) .cse4)) (let ((.cse8 (+ |sum_#in~m| 16))) (and .cse0 (<= .cse8 |sum_#res|) .cse2 .cse3 (<= .cse8 |sum_#t~ret7|) (<= |sum_#in~n| 16) .cse4)) (let ((.cse9 (+ |sum_#in~m| 17))) (and .cse0 (<= |sum_#in~n| 17) .cse2 .cse3 (<= .cse9 |sum_#t~ret7|) .cse4 (<= .cse9 |sum_#res|))) (let ((.cse10 (+ |sum_#in~m| 24))) (and .cse0 (<= .cse10 |sum_#res|) (<= |sum_#in~n| 24) .cse2 .cse3 .cse4 (<= .cse10 |sum_#t~ret7|))) (let ((.cse11 (+ |sum_#in~m| 7))) (and .cse0 .cse2 (<= .cse11 |sum_#res|) (<= |sum_#in~n| 7) .cse3 (<= .cse11 |sum_#t~ret7|) .cse4)) (let ((.cse12 (+ |sum_#in~m| 19))) (and .cse0 (<= |sum_#in~n| 19) .cse2 (<= .cse12 |sum_#t~ret7|) .cse3 (<= .cse12 |sum_#res|) .cse4)) (let ((.cse13 (+ |sum_#in~m| 22))) (and .cse0 (<= .cse13 |sum_#t~ret7|) (<= |sum_#in~n| 22) .cse2 .cse3 (<= .cse13 |sum_#res|) .cse4)) (let ((.cse14 (+ |sum_#in~m| 4))) (and .cse0 (<= .cse14 |sum_#t~ret7|) (<= |sum_#in~n| 4) .cse2 .cse3 (<= .cse14 |sum_#res|) .cse4)) (let ((.cse15 (+ |sum_#in~m| 6))) (and .cse0 (<= .cse15 |sum_#res|) .cse2 .cse3 (<= |sum_#in~n| 6) (<= .cse15 |sum_#t~ret7|) .cse4)) (let ((.cse16 (+ |sum_#in~m| 10))) (and .cse0 (<= .cse16 |sum_#res|) .cse2 .cse3 (<= .cse16 |sum_#t~ret7|) .cse4 (<= |sum_#in~n| 10))) (let ((.cse17 (+ |sum_#in~m| 5))) (and .cse0 (<= |sum_#in~n| 5) .cse2 .cse3 (<= .cse17 |sum_#t~ret7|) (<= .cse17 |sum_#res|) .cse4)) (let ((.cse18 (+ |sum_#in~m| 2))) (and .cse0 (<= .cse18 |sum_#res|) (<= |sum_#in~n| 2) .cse2 .cse3 .cse4 (<= .cse18 |sum_#t~ret7|))) (let ((.cse19 (+ |sum_#in~m| 9))) (and .cse0 .cse2 .cse3 (<= .cse19 |sum_#res|) (<= .cse19 |sum_#t~ret7|) (<= |sum_#in~n| 9) .cse4)) (let ((.cse20 (+ |sum_#in~m| 20))) (and .cse0 .cse2 .cse3 (<= |sum_#in~n| 20) (<= .cse20 |sum_#t~ret7|) (<= .cse20 |sum_#res|) .cse4)) (let ((.cse21 (+ |sum_#in~m| 18))) (and .cse0 (<= .cse21 |sum_#res|) (<= .cse21 |sum_#t~ret7|) .cse2 .cse3 (<= |sum_#in~n| 18) .cse4)) (let ((.cse22 (+ |sum_#in~m| 11))) (and .cse0 (<= .cse22 |sum_#res|) .cse2 .cse3 (<= |sum_#in~n| 11) .cse4 (<= .cse22 |sum_#t~ret7|))) (let ((.cse23 (+ |sum_#in~m| 13))) (and .cse0 .cse2 (<= .cse23 |sum_#t~ret7|) (<= |sum_#in~n| 13) .cse3 (<= .cse23 |sum_#res|) .cse4)) (let ((.cse24 (+ |sum_#in~m| 8))) (and .cse0 .cse2 (<= |sum_#in~n| 8) .cse3 (<= .cse24 |sum_#res|) (<= .cse24 |sum_#t~ret7|) .cse4)) (let ((.cse25 (+ |sum_#in~m| 12))) (and .cse0 .cse2 .cse3 (<= |sum_#in~n| 12) (<= .cse25 |sum_#t~ret7|) .cse4 (<= .cse25 |sum_#res|))) (let ((.cse26 (+ |sum_#in~m| 25))) (and .cse0 (<= .cse26 |sum_#res|) (<= .cse26 |sum_#t~ret7|) .cse2 .cse3 .cse4)) (let ((.cse27 (+ |sum_#in~m| 14))) (and .cse0 (<= .cse27 |sum_#t~ret7|) (<= .cse27 |sum_#res|) .cse2 (<= |sum_#in~n| 14) .cse3 .cse4)) (let ((.cse28 (+ |sum_#in~m| 15))) (and .cse0 (<= .cse28 |sum_#res|) .cse2 .cse3 (<= |sum_#in~n| 15) .cse4 (<= .cse28 |sum_#t~ret7|)))))) [2021-02-24 04:16:29,112 INFO L185 CegarLoopUtils]: At program point L5(lines 5 11) the Hoare annotation is: (= sum_~n |sum_#in~n|) [2021-02-24 04:16:29,113 INFO L185 CegarLoopUtils]: At program point sumFINAL(lines 5 11) the Hoare annotation is: (let ((.cse3 (+ |sum_#in~n| |sum_#in~m|))) (let ((.cse0 (= sum_~n |sum_#in~n|)) (.cse1 (= sum_~m |sum_#in~m|)) (.cse2 (<= |sum_#res| .cse3))) (or (and .cse0 (<= (+ |sum_#in~m| 25) |sum_#res|) .cse1 .cse2) (and .cse0 .cse1 .cse2 (<= (+ |sum_#in~m| 9) |sum_#res|) (<= |sum_#in~n| 9)) (and .cse0 (<= (+ |sum_#in~m| 1) |sum_#res|) .cse1 (<= |sum_#in~n| 1) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 3) .cse2 (<= (+ |sum_#in~m| 3) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 19) .cse1 .cse2 (<= (+ |sum_#in~m| 19) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 4) .cse1 .cse2 (<= (+ |sum_#in~m| 4) |sum_#res|)) (and .cse0 .cse1 .cse2 (<= (+ |sum_#in~m| 21) |sum_#res|) (<= |sum_#in~n| 21)) (and .cse0 (<= (+ |sum_#in~m| 14) |sum_#res|) .cse1 (<= |sum_#in~n| 14) .cse2) (and .cse0 (<= (+ |sum_#in~m| 16) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 16)) (and .cse0 .cse1 .cse2 (<= |sum_#in~n| 12) (<= (+ |sum_#in~m| 12) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 15) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 15)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 23) |sum_#res|) .cse2 (<= |sum_#in~n| 23)) (and .cse0 (<= (+ |sum_#in~m| 11) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 11)) (and .cse0 (<= |sum_#in~n| 22) .cse1 .cse2 (<= (+ |sum_#in~m| 22) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 6) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 6)) (and .cse0 (<= |sum_#in~n| 17) .cse1 .cse2 (<= (+ |sum_#in~m| 17) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 24) |sum_#res|) (<= |sum_#in~n| 24) .cse1 .cse2) (and .cse0 (<= (+ |sum_#in~m| 10) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 10)) (and .cse0 .cse1 .cse2 (<= |sum_#in~n| 20) (<= (+ |sum_#in~m| 20) |sum_#res|)) (and .cse0 (<= (+ |sum_#in~m| 18) |sum_#res|) .cse1 .cse2 (<= |sum_#in~n| 18)) (and .cse0 (<= (+ |sum_#in~m| 2) |sum_#res|) (<= |sum_#in~n| 2) .cse1 .cse2) (and .cse0 (<= |sum_#res| |sum_#in~m|) .cse1 (<= .cse3 |sum_#res|)) (and .cse0 .cse1 (<= |sum_#in~n| 8) .cse2 (<= (+ |sum_#in~m| 8) |sum_#res|)) (and .cse0 .cse1 (<= (+ |sum_#in~m| 7) |sum_#res|) (<= |sum_#in~n| 7) .cse2) (and .cse0 .cse1 (<= |sum_#in~n| 13) .cse2 (<= (+ |sum_#in~m| 13) |sum_#res|)) (and .cse0 (<= |sum_#in~n| 5) .cse1 .cse2 (<= (+ |sum_#in~m| 5) |sum_#res|))))) [2021-02-24 04:16:29,113 INFO L192 CegarLoopUtils]: At program point sumENTRY(lines 5 11) the Hoare annotation is: true [2021-02-24 04:16:29,113 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) the Hoare annotation is: false [2021-02-24 04:16:29,113 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2021-02-24 04:16:29,113 INFO L185 CegarLoopUtils]: At program point mainEXIT(lines 13 20) the Hoare annotation is: (<= 25 main_~a~0) [2021-02-24 04:16:29,113 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: false [2021-02-24 04:16:29,113 INFO L185 CegarLoopUtils]: At program point L17(lines 17 19) the Hoare annotation is: (and (<= main_~a~0 main_~result~0) (<= main_~a~0 25) (<= main_~result~0 main_~a~0) (<= 25 main_~a~0) (= main_~b~0 0)) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L18-1(line 18) the Hoare annotation is: false [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~a~0 25) (<= 25 main_~a~0) (= main_~b~0 0)) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L15(line 15) the Hoare annotation is: (and (<= main_~a~0 25) (<= 25 main_~a~0)) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L16-1(line 16) the Hoare annotation is: (and (<= |main_#t~ret8| main_~a~0) (<= main_~a~0 25) (<= main_~a~0 |main_#t~ret8|) (<= 25 main_~a~0) (= main_~b~0 0)) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L17-2(lines 13 20) the Hoare annotation is: (<= 25 main_~a~0) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L16-2(line 16) the Hoare annotation is: (and (<= |main_#t~ret8| main_~a~0) (<= main_~a~0 25) (<= main_~a~0 |main_#t~ret8|) (<= 25 main_~a~0) (= main_~b~0 0)) [2021-02-24 04:16:29,114 INFO L185 CegarLoopUtils]: At program point L16-3(line 16) the Hoare annotation is: (and (<= |main_#t~ret8| main_~a~0) (<= main_~a~0 main_~result~0) (<= main_~a~0 25) (<= main_~a~0 |main_#t~ret8|) (<= main_~result~0 main_~a~0) (<= 25 main_~a~0) (= main_~b~0 0)) [2021-02-24 04:16:29,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 04:16:29 BoogieIcfgContainer [2021-02-24 04:16:29,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 04:16:29,145 INFO L168 Benchmark]: Toolchain (without parser) took 69859.15 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 127.9 MB in the beginning and 382.4 MB in the end (delta: -254.4 MB). Peak memory consumption was 473.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:16:29,145 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 04:16:29,145 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.70 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 04:16:29,146 INFO L168 Benchmark]: Boogie Preprocessor took 33.50 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 116.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 04:16:29,146 INFO L168 Benchmark]: RCFGBuilder took 411.15 ms. Allocated memory is still 152.0 MB. Free memory was 116.3 MB in the beginning and 130.5 MB in the end (delta: -14.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-24 04:16:29,146 INFO L168 Benchmark]: TraceAbstraction took 69154.47 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 129.9 MB in the beginning and 382.4 MB in the end (delta: -252.5 MB). Peak memory consumption was 476.2 MB. Max. memory is 8.0 GB. [2021-02-24 04:16:29,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 82.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 240.70 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 117.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.50 ms. Allocated memory is still 152.0 MB. Free memory was 117.7 MB in the beginning and 116.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 411.15 ms. Allocated memory is still 152.0 MB. Free memory was 116.3 MB in the beginning and 130.5 MB in the end (delta: -14.2 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 69154.47 ms. Allocated memory was 152.0 MB in the beginning and 791.7 MB in the end (delta: 639.6 MB). Free memory was 129.9 MB in the beginning and 382.4 MB in the end (delta: -252.5 MB). Peak memory consumption was 476.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 5]: Procedure Contract for sum Derived contract for procedure sum: (((((((((((((((((((((((((((n == \old(n) && \old(m) + 25 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) || ((((n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 9 <= \result) && \old(n) <= 9)) || ((((n == \old(n) && \old(m) + 1 <= \result) && m == \old(m)) && \old(n) <= 1) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && m == \old(m)) && \old(n) <= 3) && \result <= \old(n) + \old(m)) && \old(m) + 3 <= \result)) || ((((n == \old(n) && \old(n) <= 19) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 19 <= \result)) || ((((n == \old(n) && \old(n) <= 4) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 4 <= \result)) || ((((n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 21 <= \result) && \old(n) <= 21)) || ((((n == \old(n) && \old(m) + 14 <= \result) && m == \old(m)) && \old(n) <= 14) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && \old(m) + 16 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 16)) || ((((n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 12) && \old(m) + 12 <= \result)) || ((((n == \old(n) && \old(m) + 15 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 15)) || ((((n == \old(n) && m == \old(m)) && \old(m) + 23 <= \result) && \result <= \old(n) + \old(m)) && \old(n) <= 23)) || ((((n == \old(n) && \old(m) + 11 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 11)) || ((((n == \old(n) && \old(n) <= 22) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 22 <= \result)) || ((((n == \old(n) && \old(m) + 6 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 6)) || ((((n == \old(n) && \old(n) <= 17) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 17 <= \result)) || ((((n == \old(n) && \old(m) + 24 <= \result) && \old(n) <= 24) && m == \old(m)) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && \old(m) + 10 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 10)) || ((((n == \old(n) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 20) && \old(m) + 20 <= \result)) || ((((n == \old(n) && \old(m) + 18 <= \result) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(n) <= 18)) || ((((n == \old(n) && \old(m) + 2 <= \result) && \old(n) <= 2) && m == \old(m)) && \result <= \old(n) + \old(m))) || (((n == \old(n) && \result <= \old(m)) && m == \old(m)) && \old(n) + \old(m) <= \result)) || ((((n == \old(n) && m == \old(m)) && \old(n) <= 8) && \result <= \old(n) + \old(m)) && \old(m) + 8 <= \result)) || ((((n == \old(n) && m == \old(m)) && \old(m) + 7 <= \result) && \old(n) <= 7) && \result <= \old(n) + \old(m))) || ((((n == \old(n) && m == \old(m)) && \old(n) <= 13) && \result <= \old(n) + \old(m)) && \old(m) + 13 <= \result)) || ((((n == \old(n) && \old(n) <= 5) && m == \old(m)) && \result <= \old(n) + \old(m)) && \old(m) + 5 <= \result) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 25 <= a - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 60.6s, OverallIterations: 26, TraceHistogramMax: 26, AutomataDifference: 34.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 723 SDtfs, 3274 SDslu, 1925 SDs, 0 SdLazy, 6017 SolverSat, 915 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1724 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 945 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9232 ImplicationChecksByTransitivity, 33.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=153occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 26 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 36 LocationsWithAnnotation, 46 PreInvPairs, 421 NumberOfFragments, 2942 HoareAnnotationTreeSize, 46 FomulaSimplifications, 7520 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 36 FomulaSimplificationsInter, 10160 FormulaSimplificationTreeSizeReductionInter, 7.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...