/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/Ackermann04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:56:46,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:56:46,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:56:46,340 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 03:56:46,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:56:46,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:56:46,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:56:46,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:56:46,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:56:46,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:56:46,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:56:46,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:56:46,375 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:56:46,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:56:46,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:56:46,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:56:46,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:56:46,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:56:46,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:56:46,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:56:46,399 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 03:56:46,422 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:56:46,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:56:46,425 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:56:46,426 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:56:46,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:56:46,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:56:46,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:56:46,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:56:46,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:56:46,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:56:46,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:56:46,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:56:46,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:56:46,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:56:46,430 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:56:46,430 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:56:46,431 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:56:46,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:56:46,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:56:46,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:56:46,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:56:46,432 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:56:46,432 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:56:46,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:56:46,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:56:46,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:56:46,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:56:46,897 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:56:46,898 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:56:46,899 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann04.c [2021-02-24 03:56:46,971 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b595332f6/e62250e2767649629233e534315f86ef/FLAG32572dcc1 [2021-02-24 03:56:47,553 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:56:47,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann04.c [2021-02-24 03:56:47,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b595332f6/e62250e2767649629233e534315f86ef/FLAG32572dcc1 [2021-02-24 03:56:47,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b595332f6/e62250e2767649629233e534315f86ef [2021-02-24 03:56:47,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:56:47,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:56:47,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:56:47,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:56:47,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:56:47,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:56:47" (1/1) ... [2021-02-24 03:56:47,915 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@457b4b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:47, skipping insertion in model container [2021-02-24 03:56:47,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:56:47" (1/1) ... [2021-02-24 03:56:47,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:56:47,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:56:48,083 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/Ackermann04.c[1166,1179] [2021-02-24 03:56:48,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:56:48,100 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:56:48,119 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/Ackermann04.c[1166,1179] [2021-02-24 03:56:48,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:56:48,137 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:56:48,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48 WrapperNode [2021-02-24 03:56:48,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:56:48,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:56:48,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:56:48,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:56:48,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,171 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (1/1) ... [2021-02-24 03:56:48,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:56:48,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:56:48,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:56:48,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:56:48,175 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (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 03:56:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:56:48,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:56:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:56:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2021-02-24 03:56:48,285 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:56:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:56:48,285 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:56:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:56:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:56:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:56:48,286 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2021-02-24 03:56:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:56:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:56:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:56:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:56:48,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:56:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:56:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:56:48,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:56:48,657 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 03:56:48,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:56:48 BoogieIcfgContainer [2021-02-24 03:56:48,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:56:48,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:56:48,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:56:48,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:56:48,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:56:47" (1/3) ... [2021-02-24 03:56:48,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba66fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:56:48, skipping insertion in model container [2021-02-24 03:56:48,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:56:48" (2/3) ... [2021-02-24 03:56:48,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba66fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:56:48, skipping insertion in model container [2021-02-24 03:56:48,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:56:48" (3/3) ... [2021-02-24 03:56:48,670 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann04.c [2021-02-24 03:56:48,708 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:56:48,713 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:56:48,743 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:56:48,785 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:56:48,785 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:56:48,785 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:56:48,785 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:56:48,786 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:56:48,786 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:56:48,786 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:56:48,786 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:56:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2021-02-24 03:56:48,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-24 03:56:48,828 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:48,830 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:48,831 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:48,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:48,840 INFO L82 PathProgramCache]: Analyzing trace with hash 305373308, now seen corresponding path program 1 times [2021-02-24 03:56:48,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:48,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1716066828] [2021-02-24 03:56:48,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:48,948 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:49,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:49,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:49,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:49,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:49,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:49,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:49,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:49,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:49,318 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:49,319 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:49,341 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 03:56:49,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1716066828] [2021-02-24 03:56:49,345 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:49,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:56:49,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133874367] [2021-02-24 03:56:49,352 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:56:49,353 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:49,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:56:49,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:56:49,371 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 6 states. [2021-02-24 03:56:50,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:50,235 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2021-02-24 03:56:50,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 03:56:50,238 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-24 03:56:50,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:50,250 INFO L225 Difference]: With dead ends: 97 [2021-02-24 03:56:50,250 INFO L226 Difference]: Without dead ends: 53 [2021-02-24 03:56:50,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:56:50,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-02-24 03:56:50,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-02-24 03:56:50,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-02-24 03:56:50,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2021-02-24 03:56:50,318 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 32 [2021-02-24 03:56:50,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:50,319 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2021-02-24 03:56:50,319 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:56:50,319 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-02-24 03:56:50,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-24 03:56:50,322 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:50,323 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, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:50,323 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:56:50,324 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:50,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:50,325 INFO L82 PathProgramCache]: Analyzing trace with hash -40053035, now seen corresponding path program 1 times [2021-02-24 03:56:50,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:50,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631438188] [2021-02-24 03:56:50,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:50,329 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:50,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:50,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:50,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:50,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:50,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:50,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:50,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:50,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:50,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:50,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:50,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:50,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:50,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:50,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:50,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:50,572 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-24 03:56:50,573 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631438188] [2021-02-24 03:56:50,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:50,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:56:50,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540253285] [2021-02-24 03:56:50,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:56:50,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:50,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:56:50,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:56:50,577 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 6 states. [2021-02-24 03:56:51,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:51,020 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions. [2021-02-24 03:56:51,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 03:56:51,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2021-02-24 03:56:51,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:51,024 INFO L225 Difference]: With dead ends: 91 [2021-02-24 03:56:51,025 INFO L226 Difference]: Without dead ends: 55 [2021-02-24 03:56:51,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:56:51,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-02-24 03:56:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-02-24 03:56:51,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-02-24 03:56:51,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2021-02-24 03:56:51,047 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 42 [2021-02-24 03:56:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:51,048 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2021-02-24 03:56:51,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:56:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-02-24 03:56:51,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-24 03:56:51,051 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:51,051 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:51,052 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-24 03:56:51,052 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:51,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:51,053 INFO L82 PathProgramCache]: Analyzing trace with hash 1101309652, now seen corresponding path program 1 times [2021-02-24 03:56:51,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:51,053 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1265982559] [2021-02-24 03:56:51,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:51,056 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,256 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:51,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:51,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,347 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-02-24 03:56:51,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1265982559] [2021-02-24 03:56:51,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:51,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-24 03:56:51,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313272752] [2021-02-24 03:56:51,351 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-24 03:56:51,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:51,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-24 03:56:51,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-24 03:56:51,355 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 7 states. [2021-02-24 03:56:51,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:51,788 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-02-24 03:56:51,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 03:56:51,788 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2021-02-24 03:56:51,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:51,797 INFO L225 Difference]: With dead ends: 83 [2021-02-24 03:56:51,797 INFO L226 Difference]: Without dead ends: 77 [2021-02-24 03:56:51,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-24 03:56:51,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-02-24 03:56:51,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-02-24 03:56:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-02-24 03:56:51,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2021-02-24 03:56:51,847 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 61 [2021-02-24 03:56:51,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:51,847 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2021-02-24 03:56:51,847 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-24 03:56:51,848 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2021-02-24 03:56:51,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-02-24 03:56:51,852 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:51,852 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:51,852 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-24 03:56:51,852 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:51,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:51,853 INFO L82 PathProgramCache]: Analyzing trace with hash 697726399, now seen corresponding path program 2 times [2021-02-24 03:56:51,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:51,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464316271] [2021-02-24 03:56:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:51,856 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:51,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,906 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,947 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:51,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:51,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:51,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:51,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-24 03:56:52,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,053 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:56:52,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,092 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-02-24 03:56:52,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464316271] [2021-02-24 03:56:52,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:52,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-24 03:56:52,093 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886879912] [2021-02-24 03:56:52,094 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-24 03:56:52,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:52,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-24 03:56:52,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-24 03:56:52,095 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand 8 states. [2021-02-24 03:56:52,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:52,622 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2021-02-24 03:56:52,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-24 03:56:52,623 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2021-02-24 03:56:52,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:52,627 INFO L225 Difference]: With dead ends: 115 [2021-02-24 03:56:52,627 INFO L226 Difference]: Without dead ends: 109 [2021-02-24 03:56:52,628 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-02-24 03:56:52,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-24 03:56:52,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-02-24 03:56:52,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-24 03:56:52,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2021-02-24 03:56:52,667 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 80 [2021-02-24 03:56:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:52,668 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2021-02-24 03:56:52,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-24 03:56:52,668 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2021-02-24 03:56:52,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-02-24 03:56:52,674 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:52,674 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:52,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-24 03:56:52,675 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:52,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:52,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1386789945, now seen corresponding path program 3 times [2021-02-24 03:56:52,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:52,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589521230] [2021-02-24 03:56:52,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:52,679 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:52,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:52,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,881 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,882 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,939 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:52,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:52,963 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:52,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:52,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:52,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,020 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:53,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,106 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:56:53,111 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:56:53,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:56:53,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:53,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,175 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:56:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:56:53,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-24 03:56:53,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:53,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:53,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:53,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:53,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:53,323 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-02-24 03:56:53,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589521230] [2021-02-24 03:56:53,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:53,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-24 03:56:53,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141347580] [2021-02-24 03:56:53,326 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-24 03:56:53,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:53,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-24 03:56:53,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-02-24 03:56:53,329 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand 16 states. [2021-02-24 03:56:55,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:55,698 INFO L93 Difference]: Finished difference Result 399 states and 948 transitions. [2021-02-24 03:56:55,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-24 03:56:55,698 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 129 [2021-02-24 03:56:55,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:55,720 INFO L225 Difference]: With dead ends: 399 [2021-02-24 03:56:55,720 INFO L226 Difference]: Without dead ends: 311 [2021-02-24 03:56:55,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=482, Invalid=1680, Unknown=0, NotChecked=0, Total=2162 [2021-02-24 03:56:55,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-24 03:56:55,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 176. [2021-02-24 03:56:55,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2021-02-24 03:56:55,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 334 transitions. [2021-02-24 03:56:55,852 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 334 transitions. Word has length 129 [2021-02-24 03:56:55,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:55,853 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 334 transitions. [2021-02-24 03:56:55,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-24 03:56:55,853 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 334 transitions. [2021-02-24 03:56:55,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-24 03:56:55,867 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:55,868 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:55,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-24 03:56:55,868 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:55,869 INFO L82 PathProgramCache]: Analyzing trace with hash 2098452402, now seen corresponding path program 4 times [2021-02-24 03:56:55,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:55,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [116992559] [2021-02-24 03:56:55,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:55,874 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:55,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,039 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:56:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,174 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:56,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-24 03:56:56,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-24 03:56:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-24 03:56:56,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-24 03:56:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,383 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-02-24 03:56:56,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [116992559] [2021-02-24 03:56:56,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:56,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-24 03:56:56,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371375946] [2021-02-24 03:56:56,386 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-24 03:56:56,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:56,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-24 03:56:56,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-24 03:56:56,387 INFO L87 Difference]: Start difference. First operand 176 states and 334 transitions. Second operand 6 states. [2021-02-24 03:56:56,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:56,617 INFO L93 Difference]: Finished difference Result 257 states and 536 transitions. [2021-02-24 03:56:56,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-24 03:56:56,618 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2021-02-24 03:56:56,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:56,620 INFO L225 Difference]: With dead ends: 257 [2021-02-24 03:56:56,620 INFO L226 Difference]: Without dead ends: 102 [2021-02-24 03:56:56,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-02-24 03:56:56,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-02-24 03:56:56,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-02-24 03:56:56,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-24 03:56:56,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-02-24 03:56:56,656 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 206 [2021-02-24 03:56:56,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:56,658 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-02-24 03:56:56,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-24 03:56:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-02-24 03:56:56,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-24 03:56:56,661 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:56,661 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1] [2021-02-24 03:56:56,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-24 03:56:56,662 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:56,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:56,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2010304395, now seen corresponding path program 5 times [2021-02-24 03:56:56,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:56,663 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239136779] [2021-02-24 03:56:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:56,667 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:56,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,948 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:56,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,965 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:56,968 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:56:56,968 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:56:56,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:56,986 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:56:57,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,009 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:56:57,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:56:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:57,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:57,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,119 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-02-24 03:56:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:57,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,180 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:56:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:56:57,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:57,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:57,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 34 proven. 42 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-02-24 03:56:57,267 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239136779] [2021-02-24 03:56:57,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:56:57,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-24 03:56:57,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523358917] [2021-02-24 03:56:57,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-24 03:56:57,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:56:57,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-24 03:56:57,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:56:57,270 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 17 states. [2021-02-24 03:56:59,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:56:59,767 INFO L93 Difference]: Finished difference Result 239 states and 431 transitions. [2021-02-24 03:56:59,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-24 03:56:59,768 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 167 [2021-02-24 03:56:59,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:56:59,772 INFO L225 Difference]: With dead ends: 239 [2021-02-24 03:56:59,772 INFO L226 Difference]: Without dead ends: 156 [2021-02-24 03:56:59,777 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=705, Invalid=2265, Unknown=0, NotChecked=0, Total=2970 [2021-02-24 03:56:59,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-02-24 03:56:59,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 118. [2021-02-24 03:56:59,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-24 03:56:59,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 157 transitions. [2021-02-24 03:56:59,804 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 157 transitions. Word has length 167 [2021-02-24 03:56:59,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:56:59,804 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 157 transitions. [2021-02-24 03:56:59,805 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-24 03:56:59,805 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2021-02-24 03:56:59,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-02-24 03:56:59,809 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:56:59,810 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 15, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:56:59,810 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-24 03:56:59,810 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:56:59,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:56:59,811 INFO L82 PathProgramCache]: Analyzing trace with hash -241636117, now seen corresponding path program 6 times [2021-02-24 03:56:59,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:56:59,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4292805] [2021-02-24 03:56:59,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:56:59,815 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:56:59,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:59,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:59,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:59,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:59,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:59,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:56:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:59,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:59,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:59,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:56:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:56:59,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:59,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:59,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:56:59,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:56:59,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:56:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,022 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,028 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,081 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,113 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:57:00,114 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:57:00,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:57:00,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:00,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:00,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,193 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:00,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:00,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-24 03:57:00,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-24 03:57:00,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:00,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,376 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-24 03:57:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:00,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:00,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 23 proven. 128 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-02-24 03:57:00,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4292805] [2021-02-24 03:57:00,528 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:57:00,528 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-24 03:57:00,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994992207] [2021-02-24 03:57:00,529 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-24 03:57:00,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:57:00,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-24 03:57:00,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-02-24 03:57:00,529 INFO L87 Difference]: Start difference. First operand 118 states and 157 transitions. Second operand 17 states. [2021-02-24 03:57:03,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:57:03,754 INFO L93 Difference]: Finished difference Result 277 states and 471 transitions. [2021-02-24 03:57:03,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-24 03:57:03,755 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 263 [2021-02-24 03:57:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:57:03,761 INFO L225 Difference]: With dead ends: 277 [2021-02-24 03:57:03,761 INFO L226 Difference]: Without dead ends: 176 [2021-02-24 03:57:03,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=889, Invalid=2893, Unknown=0, NotChecked=0, Total=3782 [2021-02-24 03:57:03,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-02-24 03:57:03,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 136. [2021-02-24 03:57:03,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-02-24 03:57:03,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 186 transitions. [2021-02-24 03:57:03,801 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 186 transitions. Word has length 263 [2021-02-24 03:57:03,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:57:03,802 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 186 transitions. [2021-02-24 03:57:03,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-24 03:57:03,802 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 186 transitions. [2021-02-24 03:57:03,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-24 03:57:03,807 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:57:03,807 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:57:03,807 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-24 03:57:03,807 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:57:03,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:57:03,808 INFO L82 PathProgramCache]: Analyzing trace with hash 465788811, now seen corresponding path program 7 times [2021-02-24 03:57:03,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:57:03,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1832061313] [2021-02-24 03:57:03,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:57:03,812 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:57:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:03,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:03,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:03,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:57:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:03,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:03,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:57:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:03,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:03,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,988 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:03,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:03,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:03,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:04,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,212 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,277 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:57:04,278 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:57:04,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:57:04,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:04,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:04,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:04,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:04,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:57:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,477 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,478 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:04,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:04,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:04,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:04,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:04,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 93 proven. 69 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-02-24 03:57:04,650 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1832061313] [2021-02-24 03:57:04,650 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:57:04,650 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-02-24 03:57:04,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914732310] [2021-02-24 03:57:04,651 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-24 03:57:04,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:57:04,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-24 03:57:04,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2021-02-24 03:57:04,652 INFO L87 Difference]: Start difference. First operand 136 states and 186 transitions. Second operand 23 states. [2021-02-24 03:57:12,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:57:12,958 INFO L93 Difference]: Finished difference Result 401 states and 704 transitions. [2021-02-24 03:57:12,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-02-24 03:57:12,959 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 243 [2021-02-24 03:57:12,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:57:12,966 INFO L225 Difference]: With dead ends: 401 [2021-02-24 03:57:12,967 INFO L226 Difference]: Without dead ends: 286 [2021-02-24 03:57:12,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4308 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=2660, Invalid=11382, Unknown=0, NotChecked=0, Total=14042 [2021-02-24 03:57:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-02-24 03:57:13,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 166. [2021-02-24 03:57:13,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-24 03:57:13,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 247 transitions. [2021-02-24 03:57:13,026 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 247 transitions. Word has length 243 [2021-02-24 03:57:13,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:57:13,027 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 247 transitions. [2021-02-24 03:57:13,027 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-24 03:57:13,027 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 247 transitions. [2021-02-24 03:57:13,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-24 03:57:13,033 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:57:13,033 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 14, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:57:13,033 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-24 03:57:13,034 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:57:13,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:57:13,034 INFO L82 PathProgramCache]: Analyzing trace with hash 437568672, now seen corresponding path program 8 times [2021-02-24 03:57:13,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:57:13,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1354129189] [2021-02-24 03:57:13,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:57:13,038 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:57:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:57:13,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:57:13,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,238 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,246 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,286 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:13,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,350 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,412 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,455 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,486 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:57:13,487 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:57:13,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:57:13,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:13,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:13,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:13,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:13,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:57:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,627 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:13,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,772 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-24 03:57:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:13,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:13,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 109 proven. 81 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-02-24 03:57:13,874 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1354129189] [2021-02-24 03:57:13,874 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:57:13,874 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-24 03:57:13,874 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968348791] [2021-02-24 03:57:13,874 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-24 03:57:13,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:57:13,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-24 03:57:13,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-02-24 03:57:13,875 INFO L87 Difference]: Start difference. First operand 166 states and 247 transitions. Second operand 24 states. [2021-02-24 03:57:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:57:22,524 INFO L93 Difference]: Finished difference Result 455 states and 855 transitions. [2021-02-24 03:57:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-02-24 03:57:22,525 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 262 [2021-02-24 03:57:22,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:57:22,534 INFO L225 Difference]: With dead ends: 455 [2021-02-24 03:57:22,535 INFO L226 Difference]: Without dead ends: 310 [2021-02-24 03:57:22,548 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5009 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=2976, Invalid=13026, Unknown=0, NotChecked=0, Total=16002 [2021-02-24 03:57:22,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-02-24 03:57:22,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 200. [2021-02-24 03:57:22,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-24 03:57:22,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 316 transitions. [2021-02-24 03:57:22,614 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 316 transitions. Word has length 262 [2021-02-24 03:57:22,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:57:22,615 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 316 transitions. [2021-02-24 03:57:22,615 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-24 03:57:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 316 transitions. [2021-02-24 03:57:22,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-02-24 03:57:22,623 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:57:22,623 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 15, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:57:22,624 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-24 03:57:22,624 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:57:22,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:57:22,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1442041525, now seen corresponding path program 9 times [2021-02-24 03:57:22,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:57:22,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381184203] [2021-02-24 03:57:22,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:57:22,628 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:57:22,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,739 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:22,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:22,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-24 03:57:22,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-24 03:57:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,857 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:22,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:22,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,917 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-24 03:57:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:22,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:22,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:22,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:22,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:22,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:22,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-24 03:57:23,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,082 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,156 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,234 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,234 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-24 03:57:23,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,333 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-24 03:57:23,334 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-24 03:57:23,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-24 03:57:23,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-24 03:57:23,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,387 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,388 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,408 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:23,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-24 03:57:23,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:23,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-24 03:57:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:23,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-24 03:57:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:23,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-24 03:57:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-24 03:57:23,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-24 03:57:23,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-24 03:57:23,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-24 03:57:23,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-24 03:57:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-02-24 03:57:23,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381184203] [2021-02-24 03:57:23,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-24 03:57:23,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-24 03:57:23,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611514086] [2021-02-24 03:57:23,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-24 03:57:23,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-24 03:57:23,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-24 03:57:23,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2021-02-24 03:57:23,726 INFO L87 Difference]: Start difference. First operand 200 states and 316 transitions. Second operand 26 states. [2021-02-24 03:57:29,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-24 03:57:29,400 INFO L93 Difference]: Finished difference Result 430 states and 649 transitions. [2021-02-24 03:57:29,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-02-24 03:57:29,400 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 281 [2021-02-24 03:57:29,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-24 03:57:29,403 INFO L225 Difference]: With dead ends: 430 [2021-02-24 03:57:29,403 INFO L226 Difference]: Without dead ends: 0 [2021-02-24 03:57:29,417 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2663 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2242, Invalid=8678, Unknown=0, NotChecked=0, Total=10920 [2021-02-24 03:57:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-24 03:57:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-24 03:57:29,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-24 03:57:29,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-24 03:57:29,418 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 281 [2021-02-24 03:57:29,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-24 03:57:29,418 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-24 03:57:29,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-02-24 03:57:29,418 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-24 03:57:29,419 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-24 03:57:29,419 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-24 03:57:29,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-24 03:57:34,803 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-24 03:57:34,998 WARN L202 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-24 03:57:35,208 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:35,339 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-24 03:57:35,473 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-24 03:57:35,690 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:35,805 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:35,964 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:36,092 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:36,207 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:36,318 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:36,439 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:36,575 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-24 03:57:36,695 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-24 03:57:36,974 WARN L202 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 102 [2021-02-24 03:57:37,126 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:37,238 WARN L202 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-24 03:57:37,394 WARN L202 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:37,610 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 115 [2021-02-24 03:57:37,762 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:37,880 WARN L202 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-24 03:57:38,024 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:38,330 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:38,551 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 101 [2021-02-24 03:57:38,862 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-24 03:57:39,043 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 101 [2021-02-24 03:57:39,158 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:39,278 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-24 03:57:39,502 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:39,628 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-24 03:57:39,760 WARN L202 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:39,875 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:40,261 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:40,375 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:40,488 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:40,662 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 113 [2021-02-24 03:57:40,779 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:41,095 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:41,315 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-24 03:57:41,526 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:41,636 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:41,801 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:41,918 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:42,037 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:42,153 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:42,279 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-24 03:57:42,741 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 102 [2021-02-24 03:57:42,859 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:42,977 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-24 03:57:43,090 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:43,254 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 115 [2021-02-24 03:57:43,402 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:43,524 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-24 03:57:43,666 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:43,984 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:44,512 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-24 03:57:44,796 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:44,915 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-24 03:57:45,127 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:45,338 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:45,454 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:45,839 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:45,959 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:46,073 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:46,246 WARN L202 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 113 [2021-02-24 03:57:46,359 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-24 03:57:46,503 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:46,642 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:46,884 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:47,111 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:57:47,251 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:47,389 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:47,636 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:47,868 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:48,187 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:48,421 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:48,651 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:48,877 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:49,120 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:49,360 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:57:49,580 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:57:50,129 WARN L202 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 145 [2021-02-24 03:57:50,372 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:50,704 WARN L202 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-24 03:57:50,939 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:51,414 WARN L202 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-24 03:57:51,691 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:52,037 WARN L202 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-24 03:57:52,302 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:52,444 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:52,583 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:52,814 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:52,989 WARN L202 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-02-24 03:57:53,307 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-24 03:57:53,544 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:53,712 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:54,060 WARN L202 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-24 03:57:54,446 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-24 03:57:54,679 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:55,037 WARN L202 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-24 03:57:55,177 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:55,413 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:55,554 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:55,787 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:56,017 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:56,258 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:57:56,457 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 104 [2021-02-24 03:57:56,719 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:56,959 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:57,197 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:57,725 WARN L202 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-24 03:57:57,964 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:57:58,116 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:58,257 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:58,490 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:58,724 WARN L202 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:57:58,877 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:59,018 WARN L202 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:57:59,249 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:59,477 WARN L202 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:57:59,770 WARN L202 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:00,003 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:00,233 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:00,459 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:58:00,699 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-24 03:58:00,931 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:58:01,156 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:58:01,701 WARN L202 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 145 [2021-02-24 03:58:01,940 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:02,271 WARN L202 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-24 03:58:02,504 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:02,995 WARN L202 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-24 03:58:03,270 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:03,618 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-24 03:58:03,884 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:04,023 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:04,161 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:04,393 WARN L202 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:04,558 WARN L202 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-02-24 03:58:04,876 WARN L202 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-24 03:58:05,015 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:05,153 WARN L202 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:05,499 WARN L202 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-24 03:58:05,887 WARN L202 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-24 03:58:06,124 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:06,473 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-24 03:58:06,618 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:06,846 WARN L202 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:06,984 WARN L202 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-24 03:58:07,221 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:07,458 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:07,695 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-24 03:58:07,897 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 104 [2021-02-24 03:58:08,158 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:08,423 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:08,659 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:09,188 WARN L202 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-24 03:58:09,420 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-24 03:58:10,757 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 112 [2021-02-24 03:58:10,964 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-02-24 03:58:11,205 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 136 [2021-02-24 03:58:11,436 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-02-24 03:58:12,114 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 126 [2021-02-24 03:58:12,488 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 126 [2021-02-24 03:58:13,429 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 140 [2021-02-24 03:58:14,035 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-02-24 03:58:14,642 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-24 03:58:15,388 WARN L202 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 125 [2021-02-24 03:58:15,607 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2021-02-24 03:58:15,857 WARN L202 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 125 [2021-02-24 03:58:16,104 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2021-02-24 03:58:16,803 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-02-24 03:58:17,169 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-02-24 03:58:18,212 WARN L202 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2021-02-24 03:58:18,314 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-24 03:58:19,719 WARN L202 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 12 [2021-02-24 03:58:19,932 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-02-24 03:58:20,155 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-02-24 03:58:20,424 WARN L202 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 23 [2021-02-24 03:58:20,607 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2021-02-24 03:58:22,047 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 118 DAG size of output: 44 [2021-02-24 03:58:22,232 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2021-02-24 03:58:24,359 WARN L202 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 245 DAG size of output: 41 [2021-02-24 03:58:26,464 WARN L202 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 245 DAG size of output: 41 [2021-02-24 03:58:31,127 WARN L202 SmtUtils]: Spent 4.64 s on a formula simplification. DAG size of input: 389 DAG size of output: 53 [2021-02-24 03:58:35,796 WARN L202 SmtUtils]: Spent 4.65 s on a formula simplification. DAG size of input: 389 DAG size of output: 53 [2021-02-24 03:58:38,647 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 236 DAG size of output: 53 [2021-02-24 03:58:38,970 WARN L202 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 10 [2021-02-24 03:58:42,201 WARN L202 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 255 DAG size of output: 47 [2021-02-24 03:58:43,353 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 118 DAG size of output: 44 [2021-02-24 03:58:43,362 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-24 03:58:43,362 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-24 03:58:43,363 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-24 03:58:43,363 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,363 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,363 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,363 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,364 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,364 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,364 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 03:58:43,364 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,364 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point L29(lines 29 33) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 27 47) the Hoare annotation is: true [2021-02-24 03:58:43,365 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 27 47) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L185 CegarLoopUtils]: At program point L42(lines 42 46) the Hoare annotation is: (or (<= 7 main_~result~0) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) the Hoare annotation is: false [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 27 47) the Hoare annotation is: true [2021-02-24 03:58:43,366 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-24 03:58:43,367 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-24 03:58:43,367 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: false [2021-02-24 03:58:43,367 INFO L185 CegarLoopUtils]: At program point L45-1(line 45) the Hoare annotation is: false [2021-02-24 03:58:43,367 INFO L192 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: true [2021-02-24 03:58:43,367 INFO L192 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: true [2021-02-24 03:58:43,367 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (or (<= 7 |main_#t~ret12|) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-24 03:58:43,367 INFO L192 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: true [2021-02-24 03:58:43,367 INFO L185 CegarLoopUtils]: At program point L41-2(line 41) the Hoare annotation is: (or (<= 7 |main_#t~ret12|) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-24 03:58:43,368 INFO L185 CegarLoopUtils]: At program point L41-3(line 41) the Hoare annotation is: (or (<= main_~m~0 1) (<= main_~n~0 1) (and (<= 7 |main_#t~ret12|) (<= 7 main_~result~0))) [2021-02-24 03:58:43,368 INFO L192 CegarLoopUtils]: At program point L35(lines 35 40) the Hoare annotation is: true [2021-02-24 03:58:43,368 INFO L185 CegarLoopUtils]: At program point ackermannEXIT(lines 16 24) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse2 (<= 5 |ackermann_#res|)) (.cse1 (<= ackermann_~m 1))) (and (or .cse0 .cse1 .cse2) (or (and (<= 2 |ackermann_#res|) .cse0 .cse1) (and (<= |ackermann_#in~n| 3) .cse1 .cse2) (and .cse1 (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse1) (and (<= (+ |ackermann_#in~n| 1) |ackermann_#res|) (= |ackermann_#in~m| 0)) (and (<= |ackermann_#in~n| 1) (<= 3 |ackermann_#res|)) (and (<= 7 |ackermann_#res|) (not (= ackermann_~m 0)))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|))) [2021-02-24 03:58:43,368 INFO L185 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: (and (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,368 INFO L185 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse0 (<= 3 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) .cse0) (let ((.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse5 (<= |ackermann_#in~n| 2)) (.cse2 (<= ackermann_~m 1)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse1 (not (= ackermann_~m 0))) (.cse4 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~n| 3) .cse1 .cse2 (<= 4 |ackermann_#t~ret8|) .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse3) (and .cse1 .cse2 .cse6 .cse4 .cse3 (<= |ackermann_#in~n| 4)) (and .cse1 .cse5 .cse0 .cse2 .cse4 .cse3) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse1 .cse2 .cse4 .cse3) (and (<= 6 |ackermann_#t~ret8|) .cse1 .cse4 .cse3) (and .cse7 .cse1 .cse0 .cse4 .cse3))))) [2021-02-24 03:58:43,369 INFO L192 CegarLoopUtils]: At program point ackermannENTRY(lines 16 24) the Hoare annotation is: true [2021-02-24 03:58:43,369 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (= |ackermann_#in~n| 0) (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,369 INFO L185 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse0 (<= 3 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) .cse0) (let ((.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse5 (<= |ackermann_#in~n| 2)) (.cse2 (<= ackermann_~m 1)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse1 (not (= ackermann_~m 0))) (.cse4 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~n| 3) .cse1 .cse2 (<= 4 |ackermann_#t~ret8|) .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse3) (and .cse1 .cse2 .cse6 .cse4 .cse3 (<= |ackermann_#in~n| 4)) (and .cse1 .cse5 .cse0 .cse2 .cse4 .cse3) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse1 .cse2 .cse4 .cse3) (and (<= 6 |ackermann_#t~ret8|) .cse1 .cse4 .cse3) (and .cse7 .cse1 .cse0 .cse4 .cse3))))) [2021-02-24 03:58:43,369 INFO L185 CegarLoopUtils]: At program point L20(lines 20 22) the Hoare annotation is: (and (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,369 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|))) (or (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)) (and .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|)))) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,370 INFO L185 CegarLoopUtils]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse7 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= |ackermann_#in~n| 2)) (.cse4 (not (= ackermann_~m 0))) (.cse8 (<= 3 |ackermann_#t~ret8|)) (.cse9 (<= ackermann_~m 1))) (let ((.cse0 (and .cse10 .cse4 (<= 4 |ackermann_#t~ret9|) .cse8 .cse9)) (.cse3 (and .cse7 (<= |ackermann_#in~n| 3) .cse4 .cse9 (<= 4 |ackermann_#t~ret8|))) (.cse1 (<= 6 |ackermann_#t~ret9|)) (.cse2 (<= 5 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) (not (<= |ackermann_#in~m| 1)) .cse0 (and .cse1 .cse2) .cse3) (let ((.cse6 (<= |ackermann_#in~n| 1)) (.cse5 (<= 7 |ackermann_#t~ret9|))) (or (and (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) .cse0 (and .cse6 .cse4 (<= 2 |ackermann_#t~ret8|) .cse9 (<= 3 |ackermann_#t~ret9|)) .cse3 (and .cse4 .cse1 .cse9 .cse2 (<= |ackermann_#in~n| 4)) (and .cse10 .cse4 .cse5 .cse2))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)))) [2021-02-24 03:58:43,370 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|))) (or (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)) (and .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|)))) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,370 INFO L185 CegarLoopUtils]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse7 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= |ackermann_#in~n| 2)) (.cse4 (not (= ackermann_~m 0))) (.cse8 (<= 3 |ackermann_#t~ret8|)) (.cse9 (<= ackermann_~m 1))) (let ((.cse0 (and .cse10 .cse4 (<= 4 |ackermann_#t~ret9|) .cse8 .cse9)) (.cse3 (and .cse7 (<= |ackermann_#in~n| 3) .cse4 .cse9 (<= 4 |ackermann_#t~ret8|))) (.cse1 (<= 6 |ackermann_#t~ret9|)) (.cse2 (<= 5 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) (not (<= |ackermann_#in~m| 1)) .cse0 (and .cse1 .cse2) .cse3) (let ((.cse6 (<= |ackermann_#in~n| 1)) (.cse5 (<= 7 |ackermann_#t~ret9|))) (or (and (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) .cse0 (and .cse6 .cse4 (<= 2 |ackermann_#t~ret8|) .cse9 (<= 3 |ackermann_#t~ret9|)) .cse3 (and .cse4 .cse1 .cse9 .cse2 (<= |ackermann_#in~n| 4)) (and .cse10 .cse4 .cse5 .cse2))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)))) [2021-02-24 03:58:43,371 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (= |ackermann_#in~m| 0)) [2021-02-24 03:58:43,371 INFO L185 CegarLoopUtils]: At program point L21-3(line 21) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 .cse1 (<= 3 |ackermann_#res|) .cse2 .cse3 (<= 3 |ackermann_#t~ret7|)) (and (<= 2 |ackermann_#res|) .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|) .cse3))) [2021-02-24 03:58:43,371 INFO L185 CegarLoopUtils]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse0 (<= 5 |ackermann_#t~ret9|)) (.cse1 (<= 5 |ackermann_#res|)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= 7 |ackermann_#t~ret9|)) (.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= ackermann_~m 1))) (and (or (and .cse0 .cse1) .cse2) (not (= ackermann_~m 0)) (let ((.cse5 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse3 (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and (<= |ackermann_#in~n| 2) (<= 3 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret9|) .cse2 (<= 6 |ackermann_#res|) .cse6 .cse5 (<= |ackermann_#in~n| 4)) (and .cse0 (<= |ackermann_#in~n| 3) .cse2 (<= 4 |ackermann_#t~ret8|) .cse1 .cse5) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse2 .cse5))) (<= 3 |ackermann_#t~ret9|) (<= 3 |ackermann_#res|) (= ackermann_~n |ackermann_#in~n|) (or .cse7 (and .cse3 .cse4 .cse6) (and (<= 4 |ackermann_#res|) (<= 4 |ackermann_#t~ret9|) .cse2)))) [2021-02-24 03:58:43,371 INFO L185 CegarLoopUtils]: At program point L17(lines 17 19) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-24 03:58:43,372 INFO L185 CegarLoopUtils]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse0 (<= ackermann_~m 1)) (.cse5 (<= 3 |ackermann_#t~ret8|)) (.cse4 (<= 5 |ackermann_#res|))) (and (let ((.cse1 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= 7 |ackermann_#res|)) (.cse3 (<= |ackermann_#in~n| 2))) (or (<= |ackermann_#in~n| 1) (and .cse0 (<= 6 |ackermann_#res|) .cse1 (<= |ackermann_#in~n| 4)) (and .cse2 .cse3 .cse1) (and .cse2 (<= 6 |ackermann_#t~ret8|)) (and (<= |ackermann_#in~n| 3) .cse0 (<= 4 |ackermann_#t~ret8|) .cse4) (and (<= 4 |ackermann_#res|) .cse3 .cse5 .cse0))) (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (let ((.cse6 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= 2 |ackermann_#t~ret8|) .cse0 (<= 3 |ackermann_#res|) .cse6) (and .cse5 .cse4 .cse6))))) [2021-02-24 03:58:43,372 INFO L185 CegarLoopUtils]: At program point L16(lines 16 24) the Hoare annotation is: (= ackermann_~m |ackermann_#in~m|) [2021-02-24 03:58:43,372 INFO L185 CegarLoopUtils]: At program point ackermannFINAL(lines 16 24) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse2 (<= 5 |ackermann_#res|)) (.cse1 (<= ackermann_~m 1))) (and (or .cse0 .cse1 .cse2) (or (and (<= 2 |ackermann_#res|) .cse0 .cse1) (and (<= |ackermann_#in~n| 3) .cse1 .cse2) (and .cse1 (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse1) (and (<= (+ |ackermann_#in~n| 1) |ackermann_#res|) (= |ackermann_#in~m| 0)) (and (<= |ackermann_#in~n| 1) (<= 3 |ackermann_#res|)) (and (<= 7 |ackermann_#res|) (not (= ackermann_~m 0)))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|))) [2021-02-24 03:58:43,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:58:43 BoogieIcfgContainer [2021-02-24 03:58:43,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:58:43,393 INFO L168 Benchmark]: Toolchain (without parser) took 115495.50 ms. Allocated memory was 172.0 MB in the beginning and 684.7 MB in the end (delta: 512.8 MB). Free memory was 147.8 MB in the beginning and 321.2 MB in the end (delta: -173.4 MB). Peak memory consumption was 420.7 MB. Max. memory is 8.0 GB. [2021-02-24 03:58:43,394 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 172.0 MB. Free memory is still 145.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:58:43,394 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.10 ms. Allocated memory is still 172.0 MB. Free memory was 146.6 MB in the beginning and 137.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:58:43,394 INFO L168 Benchmark]: Boogie Preprocessor took 34.20 ms. Allocated memory is still 172.0 MB. Free memory was 137.3 MB in the beginning and 135.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:58:43,394 INFO L168 Benchmark]: RCFGBuilder took 485.82 ms. Allocated memory is still 172.0 MB. Free memory was 135.9 MB in the beginning and 119.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:58:43,395 INFO L168 Benchmark]: TraceAbstraction took 114731.00 ms. Allocated memory was 172.0 MB in the beginning and 684.7 MB in the end (delta: 512.8 MB). Free memory was 119.5 MB in the beginning and 321.2 MB in the end (delta: -201.7 MB). Peak memory consumption was 392.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:58:43,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 172.0 MB. Free memory is still 145.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 229.10 ms. Allocated memory is still 172.0 MB. Free memory was 146.6 MB in the beginning and 137.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.20 ms. Allocated memory is still 172.0 MB. Free memory was 137.3 MB in the beginning and 135.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 485.82 ms. Allocated memory is still 172.0 MB. Free memory was 135.9 MB in the beginning and 119.9 MB in the end (delta: 16.0 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 114731.00 ms. Allocated memory was 172.0 MB in the beginning and 684.7 MB in the end (delta: 512.8 MB). Free memory was 119.5 MB in the beginning and 321.2 MB in the end (delta: -201.7 MB). Peak memory consumption was 392.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: 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: 16]: Procedure Contract for ackermann Derived contract for procedure ackermann: ((((\old(n) == 0 || m <= 1) || 5 <= \result) && ((((((((2 <= \result && \old(n) == 0) && m <= 1) || ((\old(n) <= 3 && m <= 1) && 5 <= \result)) || ((m <= 1 && 6 <= \result) && \old(n) <= 4)) || ((4 <= \result && \old(n) <= 2) && m <= 1)) || (\old(n) + 1 <= \result && \old(m) == 0)) || (\old(n) <= 1 && 3 <= \result)) || (7 <= \result && !(m == 0)))) && n == \old(n)) && m == \old(m) - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 40.6s, OverallIterations: 11, TraceHistogramMax: 27, AutomataDifference: 33.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 73.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 1254 SDslu, 987 SDs, 0 SdLazy, 6618 SolverSat, 1492 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 968 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 545 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13986 ImplicationChecksByTransitivity, 25.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 443 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 2591 PreInvPairs, 16504 NumberOfFragments, 1272 HoareAnnotationTreeSize, 2591 FomulaSimplifications, 179193682 FormulaSimplificationTreeSizeReduction, 50.0s HoareSimplificationTime, 53 FomulaSimplificationsInter, 5437503 FormulaSimplificationTreeSizeReductionInter, 23.6s 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...