/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 18:46:36,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 18:46:36,279 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 18:46:36,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 18:46:36,371 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 18:46:36,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 18:46:36,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 18:46:36,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 18:46:36,383 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 18:46:36,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 18:46:36,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 18:46:36,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 18:46:36,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 18:46:36,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 18:46:36,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 18:46:36,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 18:46:36,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 18:46:36,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 18:46:36,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 18:46:36,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 18:46:36,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 18:46:36,455 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 18:46:36,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 18:46:36,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 18:46:36,460 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 18:46:36,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 18:46:36,461 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 18:46:36,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 18:46:36,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 18:46:36,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 18:46:36,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 18:46:36,462 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 18:46:36,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 18:46:36,463 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 18:46:36,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 18:46:36,464 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 18:46:36,464 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 18:46:36,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 18:46:36,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 18:46:36,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:46:36,465 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 18:46:36,465 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 18:46:36,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 18:46:36,465 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 18:46:36,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 18:46:36,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 18:46:36,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 18:46:36,982 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 18:46:36,983 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 18:46:36,984 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2021-02-23 18:46:37,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d9fdcf1/95c5d37252d542748ac803460809c177/FLAG8e5a6780b [2021-02-23 18:46:37,740 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 18:46:37,741 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i [2021-02-23 18:46:37,749 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d9fdcf1/95c5d37252d542748ac803460809c177/FLAG8e5a6780b [2021-02-23 18:46:38,120 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2d9fdcf1/95c5d37252d542748ac803460809c177 [2021-02-23 18:46:38,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 18:46:38,141 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 18:46:38,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 18:46:38,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 18:46:38,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 18:46:38,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d51f8a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38, skipping insertion in model container [2021-02-23 18:46:38,155 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 18:46:38,185 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 18:46:38,397 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i[805,818] [2021-02-23 18:46:38,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:46:38,430 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 18:46:38,445 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-lopstr16/flag_loopdep.i[805,818] [2021-02-23 18:46:38,453 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 18:46:38,474 INFO L208 MainTranslator]: Completed translation [2021-02-23 18:46:38,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38 WrapperNode [2021-02-23 18:46:38,475 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 18:46:38,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 18:46:38,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 18:46:38,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 18:46:38,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... [2021-02-23 18:46:38,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 18:46:38,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 18:46:38,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 18:46:38,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 18:46:38,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 18:46:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 18:46:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 18:46:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 18:46:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-23 18:46:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2021-02-23 18:46:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 18:46:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 18:46:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 18:46:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2021-02-23 18:46:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2021-02-23 18:46:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 18:46:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 18:46:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-23 18:46:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-02-23 18:46:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_pointer [2021-02-23 18:46:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure init [2021-02-23 18:46:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-02-23 18:46:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 18:46:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 18:46:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 18:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 18:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 18:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 18:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 18:46:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 18:46:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 18:46:39,218 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 18:46:39,219 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-02-23 18:46:39,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:46:39 BoogieIcfgContainer [2021-02-23 18:46:39,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 18:46:39,227 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 18:46:39,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 18:46:39,232 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 18:46:39,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 06:46:38" (1/3) ... [2021-02-23 18:46:39,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a844d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:46:39, skipping insertion in model container [2021-02-23 18:46:39,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 06:46:38" (2/3) ... [2021-02-23 18:46:39,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16a844d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 06:46:39, skipping insertion in model container [2021-02-23 18:46:39,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 06:46:39" (3/3) ... [2021-02-23 18:46:39,239 INFO L111 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2021-02-23 18:46:39,247 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 18:46:39,253 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 18:46:39,279 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 18:46:39,324 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 18:46:39,325 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 18:46:39,325 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 18:46:39,325 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 18:46:39,325 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 18:46:39,326 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 18:46:39,326 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 18:46:39,326 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 18:46:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2021-02-23 18:46:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-02-23 18:46:39,365 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:39,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:46:39,367 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:39,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:39,378 INFO L82 PathProgramCache]: Analyzing trace with hash -351077520, now seen corresponding path program 1 times [2021-02-23 18:46:39,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:39,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644422205] [2021-02-23 18:46:39,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:39,490 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:39,755 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:39,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:39,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:39,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:46:39,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:39,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:39,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:39,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:39,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:39,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:39,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:39,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:39,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:39,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644422205] [2021-02-23 18:46:39,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:39,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 18:46:39,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338615971] [2021-02-23 18:46:39,962 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 18:46:39,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:39,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 18:46:39,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 18:46:39,979 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 5 states. [2021-02-23 18:46:40,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:40,382 INFO L93 Difference]: Finished difference Result 114 states and 139 transitions. [2021-02-23 18:46:40,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 18:46:40,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 33 [2021-02-23 18:46:40,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:40,396 INFO L225 Difference]: With dead ends: 114 [2021-02-23 18:46:40,397 INFO L226 Difference]: Without dead ends: 72 [2021-02-23 18:46:40,401 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 18:46:40,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-02-23 18:46:40,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 54. [2021-02-23 18:46:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-23 18:46:40,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2021-02-23 18:46:40,460 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 33 [2021-02-23 18:46:40,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:40,461 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2021-02-23 18:46:40,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 18:46:40,461 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2021-02-23 18:46:40,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-02-23 18:46:40,463 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:40,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:46:40,464 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 18:46:40,464 INFO L428 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:40,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:40,465 INFO L82 PathProgramCache]: Analyzing trace with hash -878173048, now seen corresponding path program 1 times [2021-02-23 18:46:40,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:40,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106485762] [2021-02-23 18:46:40,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:40,497 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:40,500 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:40,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:40,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:46:40,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:46:40,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 18:46:40,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:40,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:40,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:40,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:40,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:40,686 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:40,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:40,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:40,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106485762] [2021-02-23 18:46:40,692 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:40,692 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:46:40,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651475743] [2021-02-23 18:46:40,694 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:46:40,694 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:40,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:46:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:46:40,697 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 7 states. [2021-02-23 18:46:41,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:41,144 INFO L93 Difference]: Finished difference Result 96 states and 107 transitions. [2021-02-23 18:46:41,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 18:46:41,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2021-02-23 18:46:41,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:41,160 INFO L225 Difference]: With dead ends: 96 [2021-02-23 18:46:41,160 INFO L226 Difference]: Without dead ends: 81 [2021-02-23 18:46:41,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-02-23 18:46:41,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2021-02-23 18:46:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 63. [2021-02-23 18:46:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2021-02-23 18:46:41,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2021-02-23 18:46:41,198 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 40 [2021-02-23 18:46:41,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:41,198 INFO L480 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2021-02-23 18:46:41,199 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:46:41,199 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2021-02-23 18:46:41,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-02-23 18:46:41,202 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:41,202 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 18:46:41,202 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 18:46:41,202 INFO L428 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:41,203 INFO L82 PathProgramCache]: Analyzing trace with hash -692121488, now seen corresponding path program 2 times [2021-02-23 18:46:41,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:41,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [471709729] [2021-02-23 18:46:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:41,219 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:41,221 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:41,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:41,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:41,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:41,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:41,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:41,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:41,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:41,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:41,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:41,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:41,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:41,381 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:41,382 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:41,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:41,402 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:41,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:41,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:41,455 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [471709729] [2021-02-23 18:46:41,455 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:41,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 18:46:41,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509413670] [2021-02-23 18:46:41,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 18:46:41,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:41,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 18:46:41,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 18:46:41,457 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 7 states. [2021-02-23 18:46:41,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:41,944 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2021-02-23 18:46:41,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 18:46:41,945 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2021-02-23 18:46:41,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:41,946 INFO L225 Difference]: With dead ends: 105 [2021-02-23 18:46:41,946 INFO L226 Difference]: Without dead ends: 68 [2021-02-23 18:46:41,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-02-23 18:46:41,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-02-23 18:46:41,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 64. [2021-02-23 18:46:41,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-23 18:46:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2021-02-23 18:46:41,960 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 47 [2021-02-23 18:46:41,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:41,960 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2021-02-23 18:46:41,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 18:46:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2021-02-23 18:46:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-02-23 18:46:41,962 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:41,963 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:46:41,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 18:46:41,963 INFO L428 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:41,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1856414860, now seen corresponding path program 1 times [2021-02-23 18:46:41,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:41,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1035688711] [2021-02-23 18:46:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:41,974 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:41,976 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:42,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:42,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,126 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:42,128 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:42,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,163 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,165 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,185 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,187 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:42,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:42,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1035688711] [2021-02-23 18:46:42,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:42,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-02-23 18:46:42,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884413369] [2021-02-23 18:46:42,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 18:46:42,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:42,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 18:46:42,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-02-23 18:46:42,234 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 9 states. [2021-02-23 18:46:42,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:42,600 INFO L93 Difference]: Finished difference Result 111 states and 121 transitions. [2021-02-23 18:46:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 18:46:42,600 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2021-02-23 18:46:42,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:42,602 INFO L225 Difference]: With dead ends: 111 [2021-02-23 18:46:42,602 INFO L226 Difference]: Without dead ends: 74 [2021-02-23 18:46:42,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-02-23 18:46:42,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-02-23 18:46:42,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 70. [2021-02-23 18:46:42,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2021-02-23 18:46:42,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 75 transitions. [2021-02-23 18:46:42,627 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 75 transitions. Word has length 53 [2021-02-23 18:46:42,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:42,628 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 75 transitions. [2021-02-23 18:46:42,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 18:46:42,628 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 75 transitions. [2021-02-23 18:46:42,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-23 18:46:42,632 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:42,633 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:46:42,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 18:46:42,633 INFO L428 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:42,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:42,634 INFO L82 PathProgramCache]: Analyzing trace with hash 549303208, now seen corresponding path program 2 times [2021-02-23 18:46:42,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:42,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473778811] [2021-02-23 18:46:42,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:42,664 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:42,666 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:42,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:42,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:42,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:42,889 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:42,891 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:42,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,906 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,926 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,927 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,975 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,977 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:42,998 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:42,999 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:43,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:43,044 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473778811] [2021-02-23 18:46:43,044 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:43,044 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-02-23 18:46:43,044 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295699977] [2021-02-23 18:46:43,045 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-23 18:46:43,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:43,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-23 18:46:43,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2021-02-23 18:46:43,046 INFO L87 Difference]: Start difference. First operand 70 states and 75 transitions. Second operand 11 states. [2021-02-23 18:46:43,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:43,533 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2021-02-23 18:46:43,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 18:46:43,534 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2021-02-23 18:46:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:43,535 INFO L225 Difference]: With dead ends: 117 [2021-02-23 18:46:43,535 INFO L226 Difference]: Without dead ends: 80 [2021-02-23 18:46:43,536 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-02-23 18:46:43,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-02-23 18:46:43,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2021-02-23 18:46:43,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2021-02-23 18:46:43,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 81 transitions. [2021-02-23 18:46:43,550 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 81 transitions. Word has length 59 [2021-02-23 18:46:43,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:43,550 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 81 transitions. [2021-02-23 18:46:43,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2021-02-23 18:46:43,551 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 81 transitions. [2021-02-23 18:46:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-02-23 18:46:43,552 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:43,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 18:46:43,553 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 18:46:43,553 INFO L428 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:43,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash -331612732, now seen corresponding path program 3 times [2021-02-23 18:46:43,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:43,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1755471970] [2021-02-23 18:46:43,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:43,566 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:43,568 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:43,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:43,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:43,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:43,637 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,638 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:43,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:43,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:43,691 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:43,692 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:43,701 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,702 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,721 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,722 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,742 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,743 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,764 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,765 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,787 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,789 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,840 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:43,845 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:43,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:43,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:43,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:43,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1755471970] [2021-02-23 18:46:43,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:43,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-02-23 18:46:43,901 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551906520] [2021-02-23 18:46:43,902 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 18:46:43,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:43,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 18:46:43,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-02-23 18:46:43,903 INFO L87 Difference]: Start difference. First operand 76 states and 81 transitions. Second operand 13 states. [2021-02-23 18:46:44,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:44,453 INFO L93 Difference]: Finished difference Result 123 states and 133 transitions. [2021-02-23 18:46:44,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 18:46:44,454 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 65 [2021-02-23 18:46:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:44,456 INFO L225 Difference]: With dead ends: 123 [2021-02-23 18:46:44,457 INFO L226 Difference]: Without dead ends: 86 [2021-02-23 18:46:44,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=137, Invalid=369, Unknown=0, NotChecked=0, Total=506 [2021-02-23 18:46:44,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-02-23 18:46:44,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2021-02-23 18:46:44,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2021-02-23 18:46:44,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 87 transitions. [2021-02-23 18:46:44,473 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 87 transitions. Word has length 65 [2021-02-23 18:46:44,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:44,473 INFO L480 AbstractCegarLoop]: Abstraction has 82 states and 87 transitions. [2021-02-23 18:46:44,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 18:46:44,474 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 87 transitions. [2021-02-23 18:46:44,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-02-23 18:46:44,475 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:44,475 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2021-02-23 18:46:44,475 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 18:46:44,475 INFO L428 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:44,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:44,476 INFO L82 PathProgramCache]: Analyzing trace with hash -141999392, now seen corresponding path program 4 times [2021-02-23 18:46:44,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:44,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873887770] [2021-02-23 18:46:44,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:44,488 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:44,489 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:44,531 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:44,532 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:44,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:44,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:44,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:44,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:44,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:44,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:44,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:44,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:44,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:44,628 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:44,630 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:44,639 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,641 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,658 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,659 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,697 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,698 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,743 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,744 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,768 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,771 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,797 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,799 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,831 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,832 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,864 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:44,867 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:44,901 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:44,902 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:44,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:44,931 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873887770] [2021-02-23 18:46:44,931 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:44,931 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-02-23 18:46:44,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412951759] [2021-02-23 18:46:44,931 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-02-23 18:46:44,932 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:44,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-02-23 18:46:44,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2021-02-23 18:46:44,933 INFO L87 Difference]: Start difference. First operand 82 states and 87 transitions. Second operand 15 states. [2021-02-23 18:46:45,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:45,520 INFO L93 Difference]: Finished difference Result 129 states and 139 transitions. [2021-02-23 18:46:45,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 18:46:45,520 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 71 [2021-02-23 18:46:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:45,522 INFO L225 Difference]: With dead ends: 129 [2021-02-23 18:46:45,522 INFO L226 Difference]: Without dead ends: 92 [2021-02-23 18:46:45,523 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2021-02-23 18:46:45,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-02-23 18:46:45,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 88. [2021-02-23 18:46:45,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-02-23 18:46:45,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 93 transitions. [2021-02-23 18:46:45,552 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 93 transitions. Word has length 71 [2021-02-23 18:46:45,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:45,552 INFO L480 AbstractCegarLoop]: Abstraction has 88 states and 93 transitions. [2021-02-23 18:46:45,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2021-02-23 18:46:45,553 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 93 transitions. [2021-02-23 18:46:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-02-23 18:46:45,554 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:45,554 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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] [2021-02-23 18:46:45,555 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 18:46:45,555 INFO L428 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:45,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:45,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1815954172, now seen corresponding path program 5 times [2021-02-23 18:46:45,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:45,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [284415582] [2021-02-23 18:46:45,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:45,568 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:45,570 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:45,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:45,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:45,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:45,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:45,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:45,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:45,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:45,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:45,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:45,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:45,697 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:45,697 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:45,707 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,748 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,751 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,770 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,772 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,794 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,795 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,820 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,821 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,843 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,844 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,867 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,868 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,891 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,892 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,921 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,922 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,948 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:45,949 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:45,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:45,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:46,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:46,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [284415582] [2021-02-23 18:46:46,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:46,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-23 18:46:46,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181374834] [2021-02-23 18:46:46,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 18:46:46,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:46,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 18:46:46,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=205, Unknown=0, NotChecked=0, Total=272 [2021-02-23 18:46:46,003 INFO L87 Difference]: Start difference. First operand 88 states and 93 transitions. Second operand 17 states. [2021-02-23 18:46:46,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:46,659 INFO L93 Difference]: Finished difference Result 135 states and 145 transitions. [2021-02-23 18:46:46,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-23 18:46:46,660 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 77 [2021-02-23 18:46:46,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:46,661 INFO L225 Difference]: With dead ends: 135 [2021-02-23 18:46:46,661 INFO L226 Difference]: Without dead ends: 98 [2021-02-23 18:46:46,663 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2021-02-23 18:46:46,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2021-02-23 18:46:46,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2021-02-23 18:46:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-02-23 18:46:46,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2021-02-23 18:46:46,677 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 77 [2021-02-23 18:46:46,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:46,678 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2021-02-23 18:46:46,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 18:46:46,678 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2021-02-23 18:46:46,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-23 18:46:46,679 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:46,680 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 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] [2021-02-23 18:46:46,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 18:46:46,680 INFO L428 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:46,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:46,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1394589208, now seen corresponding path program 6 times [2021-02-23 18:46:46,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:46,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [198631883] [2021-02-23 18:46:46,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:46,692 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:46,693 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:46,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:46,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:46,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:46,730 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:46,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:46,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:46,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:46,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:46,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:46,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:46,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:46,837 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:46,838 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:46,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,862 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,863 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,879 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,881 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,899 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,899 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,918 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,918 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,940 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,941 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,964 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,965 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:46,996 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:46,998 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,029 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:47,030 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,056 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:47,057 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,085 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:47,086 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,113 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:47,114 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,141 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:47,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:47,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:47,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:47,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [198631883] [2021-02-23 18:46:47,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:47,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-02-23 18:46:47,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347237626] [2021-02-23 18:46:47,210 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-02-23 18:46:47,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:47,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-02-23 18:46:47,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2021-02-23 18:46:47,212 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 19 states. [2021-02-23 18:46:47,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:47,928 INFO L93 Difference]: Finished difference Result 141 states and 151 transitions. [2021-02-23 18:46:47,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 18:46:47,929 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 83 [2021-02-23 18:46:47,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:47,930 INFO L225 Difference]: With dead ends: 141 [2021-02-23 18:46:47,930 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 18:46:47,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=329, Invalid=861, Unknown=0, NotChecked=0, Total=1190 [2021-02-23 18:46:47,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 18:46:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 100. [2021-02-23 18:46:47,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2021-02-23 18:46:47,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 105 transitions. [2021-02-23 18:46:47,950 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 105 transitions. Word has length 83 [2021-02-23 18:46:47,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:47,950 INFO L480 AbstractCegarLoop]: Abstraction has 100 states and 105 transitions. [2021-02-23 18:46:47,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2021-02-23 18:46:47,951 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 105 transitions. [2021-02-23 18:46:47,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-02-23 18:46:47,952 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:47,953 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 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] [2021-02-23 18:46:47,953 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 18:46:47,953 INFO L428 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:47,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:47,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1881699380, now seen corresponding path program 7 times [2021-02-23 18:46:47,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:47,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1883070033] [2021-02-23 18:46:47,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:47,967 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:47,968 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:48,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:48,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:48,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:48,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:48,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:48,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:48,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:48,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:48,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:48,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:48,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:48,099 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:48,100 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:48,110 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,111 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,128 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,129 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,150 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,152 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,202 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,224 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,225 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,252 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,253 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,279 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,280 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,304 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,305 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,332 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,333 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,362 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,363 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,399 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,436 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,436 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,473 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,474 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,512 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:48,514 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:48,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:48,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:48,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:48,587 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1883070033] [2021-02-23 18:46:48,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:48,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-02-23 18:46:48,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364750352] [2021-02-23 18:46:48,588 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-02-23 18:46:48,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:48,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-02-23 18:46:48,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2021-02-23 18:46:48,590 INFO L87 Difference]: Start difference. First operand 100 states and 105 transitions. Second operand 21 states. [2021-02-23 18:46:49,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:49,437 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2021-02-23 18:46:49,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-23 18:46:49,437 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 89 [2021-02-23 18:46:49,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:49,439 INFO L225 Difference]: With dead ends: 147 [2021-02-23 18:46:49,439 INFO L226 Difference]: Without dead ends: 110 [2021-02-23 18:46:49,441 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 18:46:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-02-23 18:46:49,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2021-02-23 18:46:49,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2021-02-23 18:46:49,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 111 transitions. [2021-02-23 18:46:49,459 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 111 transitions. Word has length 89 [2021-02-23 18:46:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:49,459 INFO L480 AbstractCegarLoop]: Abstraction has 106 states and 111 transitions. [2021-02-23 18:46:49,459 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2021-02-23 18:46:49,460 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 111 transitions. [2021-02-23 18:46:49,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-02-23 18:46:49,463 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:49,463 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 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] [2021-02-23 18:46:49,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 18:46:49,463 INFO L428 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:49,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:49,464 INFO L82 PathProgramCache]: Analyzing trace with hash 511649104, now seen corresponding path program 8 times [2021-02-23 18:46:49,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:49,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349256354] [2021-02-23 18:46:49,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:49,482 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:49,483 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:49,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:49,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:49,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:49,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:49,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:49,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:49,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:49,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:49,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:49,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:49,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:49,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:49,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:49,654 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:49,655 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:49,664 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,664 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,680 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,681 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,719 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,720 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,739 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,740 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,762 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,762 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,784 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,785 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,807 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,808 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,831 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,832 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,860 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,860 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,884 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,885 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,932 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:49,962 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:49,963 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:50,000 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:50,000 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:50,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:50,041 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:50,077 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:50,077 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:50,116 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:50,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:50,158 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:50,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:50,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:50,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349256354] [2021-02-23 18:46:50,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:50,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-02-23 18:46:50,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846568970] [2021-02-23 18:46:50,204 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-23 18:46:50,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:50,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-23 18:46:50,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=382, Unknown=0, NotChecked=0, Total=506 [2021-02-23 18:46:50,205 INFO L87 Difference]: Start difference. First operand 106 states and 111 transitions. Second operand 23 states. [2021-02-23 18:46:51,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:51,179 INFO L93 Difference]: Finished difference Result 153 states and 163 transitions. [2021-02-23 18:46:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-23 18:46:51,179 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 95 [2021-02-23 18:46:51,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:51,181 INFO L225 Difference]: With dead ends: 153 [2021-02-23 18:46:51,181 INFO L226 Difference]: Without dead ends: 116 [2021-02-23 18:46:51,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=507, Invalid=1299, Unknown=0, NotChecked=0, Total=1806 [2021-02-23 18:46:51,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-02-23 18:46:51,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2021-02-23 18:46:51,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2021-02-23 18:46:51,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 117 transitions. [2021-02-23 18:46:51,198 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 117 transitions. Word has length 95 [2021-02-23 18:46:51,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:51,198 INFO L480 AbstractCegarLoop]: Abstraction has 112 states and 117 transitions. [2021-02-23 18:46:51,198 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-23 18:46:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 117 transitions. [2021-02-23 18:46:51,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-02-23 18:46:51,200 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:51,200 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 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] [2021-02-23 18:46:51,200 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 18:46:51,200 INFO L428 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:51,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:51,201 INFO L82 PathProgramCache]: Analyzing trace with hash 746295660, now seen corresponding path program 9 times [2021-02-23 18:46:51,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:51,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508310490] [2021-02-23 18:46:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:51,213 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:51,215 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:51,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:51,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:51,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:51,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:51,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:51,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:51,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:51,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:51,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:51,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:51,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:51,355 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:51,355 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:51,364 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,364 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,381 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,382 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,403 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,404 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,422 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,423 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,441 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,442 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,461 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,462 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,482 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,483 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,505 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,505 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,527 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,528 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,551 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,552 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,576 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,577 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,605 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,640 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,677 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,678 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,713 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,715 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,751 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,752 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,789 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,789 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,844 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,845 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,893 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:51,894 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:51,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:51,933 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:51,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508310490] [2021-02-23 18:46:51,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:51,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-02-23 18:46:51,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118239865] [2021-02-23 18:46:51,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-23 18:46:51,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:51,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-23 18:46:51,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2021-02-23 18:46:51,990 INFO L87 Difference]: Start difference. First operand 112 states and 117 transitions. Second operand 25 states. [2021-02-23 18:46:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:53,198 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2021-02-23 18:46:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 18:46:53,198 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 101 [2021-02-23 18:46:53,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:53,199 INFO L225 Difference]: With dead ends: 159 [2021-02-23 18:46:53,199 INFO L226 Difference]: Without dead ends: 122 [2021-02-23 18:46:53,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=611, Invalid=1551, Unknown=0, NotChecked=0, Total=2162 [2021-02-23 18:46:53,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-02-23 18:46:53,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 118. [2021-02-23 18:46:53,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-23 18:46:53,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 123 transitions. [2021-02-23 18:46:53,213 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 123 transitions. Word has length 101 [2021-02-23 18:46:53,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:53,213 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 123 transitions. [2021-02-23 18:46:53,213 INFO L481 AbstractCegarLoop]: Interpolant automaton has 25 states. [2021-02-23 18:46:53,214 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 123 transitions. [2021-02-23 18:46:53,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-02-23 18:46:53,215 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:53,215 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2021-02-23 18:46:53,215 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 18:46:53,215 INFO L428 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:53,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:53,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1213892472, now seen corresponding path program 10 times [2021-02-23 18:46:53,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:53,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052144654] [2021-02-23 18:46:53,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:53,230 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:53,232 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:53,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:53,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:53,277 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:53,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:53,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:53,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:53,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:53,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:53,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:53,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:53,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:53,368 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:53,369 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:53,378 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,378 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,395 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,396 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,413 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,414 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,452 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,453 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,475 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,475 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,499 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,501 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,530 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,531 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,567 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,600 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,601 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,632 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,633 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,666 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,669 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,701 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,738 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,739 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,776 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,778 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,816 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,820 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,864 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,906 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,910 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,951 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:53,995 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:53,996 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:54,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:54,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:54,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:54,089 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:54,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:54,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052144654] [2021-02-23 18:46:54,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:54,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-02-23 18:46:54,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110234632] [2021-02-23 18:46:54,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-02-23 18:46:54,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:54,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-02-23 18:46:54,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2021-02-23 18:46:54,138 INFO L87 Difference]: Start difference. First operand 118 states and 123 transitions. Second operand 27 states. [2021-02-23 18:46:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:55,410 INFO L93 Difference]: Finished difference Result 165 states and 175 transitions. [2021-02-23 18:46:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-23 18:46:55,411 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 107 [2021-02-23 18:46:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:55,412 INFO L225 Difference]: With dead ends: 165 [2021-02-23 18:46:55,412 INFO L226 Difference]: Without dead ends: 128 [2021-02-23 18:46:55,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=725, Invalid=1825, Unknown=0, NotChecked=0, Total=2550 [2021-02-23 18:46:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-02-23 18:46:55,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2021-02-23 18:46:55,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-02-23 18:46:55,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 129 transitions. [2021-02-23 18:46:55,429 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 129 transitions. Word has length 107 [2021-02-23 18:46:55,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:55,429 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 129 transitions. [2021-02-23 18:46:55,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 27 states. [2021-02-23 18:46:55,430 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 129 transitions. [2021-02-23 18:46:55,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-02-23 18:46:55,431 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:55,431 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 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] [2021-02-23 18:46:55,431 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 18:46:55,431 INFO L428 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:55,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:55,432 INFO L82 PathProgramCache]: Analyzing trace with hash 146053796, now seen corresponding path program 11 times [2021-02-23 18:46:55,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:55,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156766444] [2021-02-23 18:46:55,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:55,445 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:55,447 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:55,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:55,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:55,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:55,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:55,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:55,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:55,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:55,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:55,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:55,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:55,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:55,588 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:55,589 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:55,596 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,613 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,614 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,630 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,649 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,650 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,669 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,670 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,692 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,693 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,719 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,720 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,749 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,750 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,779 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,807 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,808 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,837 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,838 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,868 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,869 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,897 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,897 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,928 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:55,959 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:55,960 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,000 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,001 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,078 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,079 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,114 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,115 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,149 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,150 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,192 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,193 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,239 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,242 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,289 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:56,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:56,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:56,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:56,392 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156766444] [2021-02-23 18:46:56,392 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:56,392 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2021-02-23 18:46:56,392 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265144110] [2021-02-23 18:46:56,393 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-23 18:46:56,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:56,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-23 18:46:56,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2021-02-23 18:46:56,394 INFO L87 Difference]: Start difference. First operand 124 states and 129 transitions. Second operand 29 states. [2021-02-23 18:46:58,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:46:58,023 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2021-02-23 18:46:58,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-02-23 18:46:58,024 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 113 [2021-02-23 18:46:58,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:46:58,025 INFO L225 Difference]: With dead ends: 171 [2021-02-23 18:46:58,025 INFO L226 Difference]: Without dead ends: 134 [2021-02-23 18:46:58,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=849, Invalid=2121, Unknown=0, NotChecked=0, Total=2970 [2021-02-23 18:46:58,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-02-23 18:46:58,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-02-23 18:46:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-02-23 18:46:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 135 transitions. [2021-02-23 18:46:58,042 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 135 transitions. Word has length 113 [2021-02-23 18:46:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:46:58,043 INFO L480 AbstractCegarLoop]: Abstraction has 130 states and 135 transitions. [2021-02-23 18:46:58,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 29 states. [2021-02-23 18:46:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 135 transitions. [2021-02-23 18:46:58,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-02-23 18:46:58,044 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:46:58,045 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 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] [2021-02-23 18:46:58,045 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 18:46:58,045 INFO L428 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:46:58,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:46:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1871755200, now seen corresponding path program 12 times [2021-02-23 18:46:58,046 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:46:58,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244032018] [2021-02-23 18:46:58,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:46:58,059 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:46:58,060 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:46:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:58,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:58,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:58,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:58,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:46:58,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:58,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:58,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:58,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:46:58,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:46:58,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:58,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:46:58,241 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:46:58,242 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:46:58,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,267 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,268 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,285 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,286 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,305 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,305 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,345 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,346 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,367 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,368 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,391 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,392 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,431 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,432 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,459 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,460 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,490 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,491 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,526 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,561 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,562 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,599 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,641 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,675 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,676 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,750 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,751 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,793 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,794 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,838 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,840 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,885 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,886 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,932 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,933 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:58,985 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:58,986 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:59,031 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:59,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:59,082 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:46:59,083 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:46:59,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:46:59,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:46:59,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:46:59,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244032018] [2021-02-23 18:46:59,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:46:59,224 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2021-02-23 18:46:59,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106611136] [2021-02-23 18:46:59,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-02-23 18:46:59,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:46:59,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-02-23 18:46:59,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-02-23 18:46:59,226 INFO L87 Difference]: Start difference. First operand 130 states and 135 transitions. Second operand 31 states. [2021-02-23 18:47:00,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:00,842 INFO L93 Difference]: Finished difference Result 177 states and 187 transitions. [2021-02-23 18:47:00,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-02-23 18:47:00,843 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 119 [2021-02-23 18:47:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:00,845 INFO L225 Difference]: With dead ends: 177 [2021-02-23 18:47:00,845 INFO L226 Difference]: Without dead ends: 140 [2021-02-23 18:47:00,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=983, Invalid=2439, Unknown=0, NotChecked=0, Total=3422 [2021-02-23 18:47:00,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-02-23 18:47:00,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 136. [2021-02-23 18:47:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-02-23 18:47:00,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 141 transitions. [2021-02-23 18:47:00,862 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 141 transitions. Word has length 119 [2021-02-23 18:47:00,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:00,863 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 141 transitions. [2021-02-23 18:47:00,863 INFO L481 AbstractCegarLoop]: Interpolant automaton has 31 states. [2021-02-23 18:47:00,863 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 141 transitions. [2021-02-23 18:47:00,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-02-23 18:47:00,864 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:00,864 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 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] [2021-02-23 18:47:00,864 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 18:47:00,865 INFO L428 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:00,865 INFO L82 PathProgramCache]: Analyzing trace with hash 525438940, now seen corresponding path program 13 times [2021-02-23 18:47:00,865 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:00,865 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2129544990] [2021-02-23 18:47:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:00,878 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:00,879 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:00,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:00,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:00,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:00,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:00,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:00,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:00,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:00,958 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:00,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:01,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:01,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:01,040 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:01,040 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:01,049 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,050 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,067 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,068 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,090 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,091 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,117 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,118 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,141 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,170 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,171 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,203 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,204 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,231 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,232 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,264 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,301 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,337 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,338 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,368 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,369 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,401 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,433 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,434 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,467 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,468 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,501 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,502 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,535 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,536 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,571 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,572 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,605 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,641 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,677 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,678 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,716 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,716 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,768 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,854 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,855 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,904 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,948 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:01,949 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:01,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:01,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:02,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:02,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2129544990] [2021-02-23 18:47:02,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:02,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2021-02-23 18:47:02,103 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86621742] [2021-02-23 18:47:02,104 INFO L460 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-02-23 18:47:02,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:02,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-02-23 18:47:02,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=797, Unknown=0, NotChecked=0, Total=1056 [2021-02-23 18:47:02,108 INFO L87 Difference]: Start difference. First operand 136 states and 141 transitions. Second operand 33 states. [2021-02-23 18:47:03,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:03,822 INFO L93 Difference]: Finished difference Result 183 states and 193 transitions. [2021-02-23 18:47:03,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-23 18:47:03,823 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 125 [2021-02-23 18:47:03,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:03,825 INFO L225 Difference]: With dead ends: 183 [2021-02-23 18:47:03,825 INFO L226 Difference]: Without dead ends: 146 [2021-02-23 18:47:03,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1127, Invalid=2779, Unknown=0, NotChecked=0, Total=3906 [2021-02-23 18:47:03,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-02-23 18:47:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 142. [2021-02-23 18:47:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2021-02-23 18:47:03,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 147 transitions. [2021-02-23 18:47:03,844 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 147 transitions. Word has length 125 [2021-02-23 18:47:03,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:03,845 INFO L480 AbstractCegarLoop]: Abstraction has 142 states and 147 transitions. [2021-02-23 18:47:03,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has 33 states. [2021-02-23 18:47:03,845 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 147 transitions. [2021-02-23 18:47:03,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-02-23 18:47:03,846 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:03,846 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 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] [2021-02-23 18:47:03,846 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 18:47:03,846 INFO L428 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:03,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:03,847 INFO L82 PathProgramCache]: Analyzing trace with hash 171893496, now seen corresponding path program 14 times [2021-02-23 18:47:03,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:03,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164737836] [2021-02-23 18:47:03,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:03,861 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:03,862 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:03,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:03,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:03,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:03,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:03,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:03,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:03,943 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:03,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:04,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:04,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:04,031 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:04,031 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:04,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,059 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,060 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,087 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,088 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,111 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,111 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,141 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,189 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,190 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,213 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,214 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,247 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,247 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,278 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,279 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,310 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,311 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,346 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,347 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,386 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,387 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,424 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,425 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,455 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,487 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,519 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,520 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,554 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,555 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,586 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,587 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,621 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,622 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,658 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,659 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,696 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,697 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,737 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,737 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,776 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,777 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,819 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,819 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,860 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,861 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,905 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,906 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,950 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:04,995 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:04,995 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:05,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:05,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:05,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:05,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:05,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164737836] [2021-02-23 18:47:05,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:05,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-02-23 18:47:05,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911358594] [2021-02-23 18:47:05,203 INFO L460 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-02-23 18:47:05,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:05,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-02-23 18:47:05,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2021-02-23 18:47:05,205 INFO L87 Difference]: Start difference. First operand 142 states and 147 transitions. Second operand 35 states. [2021-02-23 18:47:07,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:07,273 INFO L93 Difference]: Finished difference Result 189 states and 199 transitions. [2021-02-23 18:47:07,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-02-23 18:47:07,274 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 131 [2021-02-23 18:47:07,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:07,277 INFO L225 Difference]: With dead ends: 189 [2021-02-23 18:47:07,277 INFO L226 Difference]: Without dead ends: 152 [2021-02-23 18:47:07,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 759 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1281, Invalid=3141, Unknown=0, NotChecked=0, Total=4422 [2021-02-23 18:47:07,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-02-23 18:47:07,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 148. [2021-02-23 18:47:07,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2021-02-23 18:47:07,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 153 transitions. [2021-02-23 18:47:07,297 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 153 transitions. Word has length 131 [2021-02-23 18:47:07,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:07,297 INFO L480 AbstractCegarLoop]: Abstraction has 148 states and 153 transitions. [2021-02-23 18:47:07,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 35 states. [2021-02-23 18:47:07,297 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 153 transitions. [2021-02-23 18:47:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-02-23 18:47:07,298 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:07,299 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 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] [2021-02-23 18:47:07,299 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 18:47:07,299 INFO L428 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:07,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:07,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1110413036, now seen corresponding path program 15 times [2021-02-23 18:47:07,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:07,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1594701487] [2021-02-23 18:47:07,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:07,311 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:07,312 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:07,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:07,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:07,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:07,370 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:07,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:07,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:07,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:07,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:07,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:07,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:07,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:07,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:07,509 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:07,510 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:07,521 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,543 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,544 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,566 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,567 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,591 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,592 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,614 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,614 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,639 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,663 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,663 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,689 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,690 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,717 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,718 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,744 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,745 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,771 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,772 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,802 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,802 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,832 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,833 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,865 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,865 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,904 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,938 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,938 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:07,974 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:07,975 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,009 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,010 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,048 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,049 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,087 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,088 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,125 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,126 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,165 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,166 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,208 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,209 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,251 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,294 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,295 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,340 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,385 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,386 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,456 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,507 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,508 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,555 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,556 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,604 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:08,605 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:08,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:08,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:08,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:08,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1594701487] [2021-02-23 18:47:08,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:08,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2021-02-23 18:47:08,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422555504] [2021-02-23 18:47:08,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-02-23 18:47:08,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:08,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-02-23 18:47:08,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=327, Invalid=1005, Unknown=0, NotChecked=0, Total=1332 [2021-02-23 18:47:08,739 INFO L87 Difference]: Start difference. First operand 148 states and 153 transitions. Second operand 37 states. [2021-02-23 18:47:10,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:10,805 INFO L93 Difference]: Finished difference Result 195 states and 205 transitions. [2021-02-23 18:47:10,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-23 18:47:10,805 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 137 [2021-02-23 18:47:10,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:10,807 INFO L225 Difference]: With dead ends: 195 [2021-02-23 18:47:10,807 INFO L226 Difference]: Without dead ends: 158 [2021-02-23 18:47:10,810 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1445, Invalid=3525, Unknown=0, NotChecked=0, Total=4970 [2021-02-23 18:47:10,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-02-23 18:47:10,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 154. [2021-02-23 18:47:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-02-23 18:47:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 159 transitions. [2021-02-23 18:47:10,829 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 159 transitions. Word has length 137 [2021-02-23 18:47:10,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:10,829 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 159 transitions. [2021-02-23 18:47:10,829 INFO L481 AbstractCegarLoop]: Interpolant automaton has 37 states. [2021-02-23 18:47:10,829 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 159 transitions. [2021-02-23 18:47:10,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-02-23 18:47:10,830 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:10,830 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 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] [2021-02-23 18:47:10,831 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-23 18:47:10,831 INFO L428 AbstractCegarLoop]: === Iteration 19 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:10,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:10,831 INFO L82 PathProgramCache]: Analyzing trace with hash 1051589168, now seen corresponding path program 16 times [2021-02-23 18:47:10,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:10,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017062918] [2021-02-23 18:47:10,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:10,843 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:10,845 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:10,906 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:10,907 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:10,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:10,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:10,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:10,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:10,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:10,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:10,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:11,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:11,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:11,028 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:11,028 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:11,039 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,040 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,079 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,080 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,099 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,100 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,121 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,143 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,144 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,167 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,168 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,193 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,194 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,218 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,219 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,245 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,246 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,289 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,319 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,349 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,349 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,380 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,380 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,415 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,416 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,448 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,483 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,484 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,520 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,520 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,557 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,557 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,637 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,679 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,680 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,718 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,718 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,760 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,761 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,802 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,803 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,846 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,891 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,935 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,936 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:11,980 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:11,981 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:12,027 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:12,028 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:12,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:12,073 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:12,120 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:12,121 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:12,169 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:12,169 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:12,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:12,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:12,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017062918] [2021-02-23 18:47:12,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:12,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2021-02-23 18:47:12,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454431812] [2021-02-23 18:47:12,366 INFO L460 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-02-23 18:47:12,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:12,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-02-23 18:47:12,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=1118, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 18:47:12,367 INFO L87 Difference]: Start difference. First operand 154 states and 159 transitions. Second operand 39 states. [2021-02-23 18:47:14,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:14,850 INFO L93 Difference]: Finished difference Result 201 states and 211 transitions. [2021-02-23 18:47:14,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-02-23 18:47:14,851 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 143 [2021-02-23 18:47:14,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:14,852 INFO L225 Difference]: With dead ends: 201 [2021-02-23 18:47:14,852 INFO L226 Difference]: Without dead ends: 164 [2021-02-23 18:47:14,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 963 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1619, Invalid=3931, Unknown=0, NotChecked=0, Total=5550 [2021-02-23 18:47:14,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-02-23 18:47:14,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2021-02-23 18:47:14,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2021-02-23 18:47:14,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 165 transitions. [2021-02-23 18:47:14,875 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 165 transitions. Word has length 143 [2021-02-23 18:47:14,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:14,875 INFO L480 AbstractCegarLoop]: Abstraction has 160 states and 165 transitions. [2021-02-23 18:47:14,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 39 states. [2021-02-23 18:47:14,875 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 165 transitions. [2021-02-23 18:47:14,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-02-23 18:47:14,876 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:14,877 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 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] [2021-02-23 18:47:14,877 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-23 18:47:14,877 INFO L428 AbstractCegarLoop]: === Iteration 20 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:14,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:14,877 INFO L82 PathProgramCache]: Analyzing trace with hash -458277300, now seen corresponding path program 17 times [2021-02-23 18:47:14,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:14,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [105333093] [2021-02-23 18:47:14,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:14,888 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:14,889 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:14,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:14,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:14,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:14,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:14,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:14,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:14,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:14,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:14,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:15,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:15,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:15,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:15,064 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:15,065 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:15,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,074 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,090 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,091 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,109 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,109 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,131 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,132 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,152 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,153 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,196 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,196 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,224 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,224 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,255 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,257 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,287 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,288 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,322 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,349 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,350 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,377 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,378 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,409 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,410 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,449 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,450 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,529 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,530 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,568 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,609 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,649 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,650 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,698 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,699 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,740 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,784 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,785 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,826 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,826 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,868 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,869 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,911 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,912 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:15,958 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:15,959 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,012 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,013 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,066 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,067 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,125 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,126 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,186 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,187 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,249 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,252 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,312 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,313 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,377 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,381 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,441 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:16,441 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:16,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:16,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:16,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:16,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [105333093] [2021-02-23 18:47:16,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:16,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2021-02-23 18:47:16,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52036065] [2021-02-23 18:47:16,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-02-23 18:47:16,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:16,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-02-23 18:47:16,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=403, Invalid=1237, Unknown=0, NotChecked=0, Total=1640 [2021-02-23 18:47:16,606 INFO L87 Difference]: Start difference. First operand 160 states and 165 transitions. Second operand 41 states. [2021-02-23 18:47:19,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:19,302 INFO L93 Difference]: Finished difference Result 207 states and 217 transitions. [2021-02-23 18:47:19,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-23 18:47:19,303 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 149 [2021-02-23 18:47:19,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:19,304 INFO L225 Difference]: With dead ends: 207 [2021-02-23 18:47:19,304 INFO L226 Difference]: Without dead ends: 170 [2021-02-23 18:47:19,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1074 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1803, Invalid=4359, Unknown=0, NotChecked=0, Total=6162 [2021-02-23 18:47:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-02-23 18:47:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 166. [2021-02-23 18:47:19,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-23 18:47:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 171 transitions. [2021-02-23 18:47:19,328 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 171 transitions. Word has length 149 [2021-02-23 18:47:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:19,328 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 171 transitions. [2021-02-23 18:47:19,328 INFO L481 AbstractCegarLoop]: Interpolant automaton has 41 states. [2021-02-23 18:47:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 171 transitions. [2021-02-23 18:47:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-02-23 18:47:19,329 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:19,329 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 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] [2021-02-23 18:47:19,332 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-23 18:47:19,332 INFO L428 AbstractCegarLoop]: === Iteration 21 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:19,333 INFO L82 PathProgramCache]: Analyzing trace with hash 920386920, now seen corresponding path program 18 times [2021-02-23 18:47:19,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:19,333 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1698063382] [2021-02-23 18:47:19,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:19,343 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:19,344 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:19,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:19,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:19,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:19,407 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:19,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:19,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:19,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:19,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:19,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:19,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:19,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:19,522 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:19,523 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:19,532 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,533 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,549 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,550 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,567 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,589 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,610 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,611 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,634 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,635 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,686 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,687 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,715 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,715 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,744 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,744 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,773 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,774 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,805 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,806 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,840 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,841 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,872 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,904 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,905 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,939 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,940 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:19,975 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:19,976 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,013 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,014 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,053 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,053 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,092 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,093 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,132 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,133 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,182 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,184 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,223 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,224 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,265 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,306 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,307 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,347 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,348 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,402 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,402 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,458 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,574 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,575 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,633 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,633 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,694 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,695 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,757 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,757 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,822 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,823 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,888 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,888 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:20,955 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:20,956 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:21,024 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:21,025 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:21,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:21,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:21,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:21,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1698063382] [2021-02-23 18:47:21,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:21,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2021-02-23 18:47:21,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062921656] [2021-02-23 18:47:21,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-02-23 18:47:21,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:21,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-02-23 18:47:21,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=444, Invalid=1362, Unknown=0, NotChecked=0, Total=1806 [2021-02-23 18:47:21,199 INFO L87 Difference]: Start difference. First operand 166 states and 171 transitions. Second operand 43 states. [2021-02-23 18:47:24,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:24,022 INFO L93 Difference]: Finished difference Result 213 states and 223 transitions. [2021-02-23 18:47:24,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-23 18:47:24,022 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 155 [2021-02-23 18:47:24,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:24,024 INFO L225 Difference]: With dead ends: 213 [2021-02-23 18:47:24,024 INFO L226 Difference]: Without dead ends: 176 [2021-02-23 18:47:24,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1191 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1997, Invalid=4809, Unknown=0, NotChecked=0, Total=6806 [2021-02-23 18:47:24,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-02-23 18:47:24,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 172. [2021-02-23 18:47:24,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2021-02-23 18:47:24,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 177 transitions. [2021-02-23 18:47:24,054 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 177 transitions. Word has length 155 [2021-02-23 18:47:24,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:24,054 INFO L480 AbstractCegarLoop]: Abstraction has 172 states and 177 transitions. [2021-02-23 18:47:24,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 43 states. [2021-02-23 18:47:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 177 transitions. [2021-02-23 18:47:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-02-23 18:47:24,056 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:24,056 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 19, 19, 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] [2021-02-23 18:47:24,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-23 18:47:24,056 INFO L428 AbstractCegarLoop]: === Iteration 22 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:24,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:24,057 INFO L82 PathProgramCache]: Analyzing trace with hash -949225596, now seen corresponding path program 19 times [2021-02-23 18:47:24,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:24,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942833344] [2021-02-23 18:47:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:24,069 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:24,070 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:24,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:24,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:24,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:24,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:24,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:24,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:24,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:24,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:24,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:24,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:24,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:24,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:24,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:24,272 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:24,273 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:24,283 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,284 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,300 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,340 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,363 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,363 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,386 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,387 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,411 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,412 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,438 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,464 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,464 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,490 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,517 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,518 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,543 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,544 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,570 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,571 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,606 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,607 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,653 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,654 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,692 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,693 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,733 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,734 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,776 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,816 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,858 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,859 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,908 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:24,996 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:24,996 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,089 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,090 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,134 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,135 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,182 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,183 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,227 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,280 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,281 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,340 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,463 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,464 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,528 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,528 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,592 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,593 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,727 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,727 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,795 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,796 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,864 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,865 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:25,927 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:25,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:25,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:26,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942833344] [2021-02-23 18:47:26,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:26,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2021-02-23 18:47:26,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527597984] [2021-02-23 18:47:26,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-02-23 18:47:26,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:26,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-02-23 18:47:26,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=1493, Unknown=0, NotChecked=0, Total=1980 [2021-02-23 18:47:26,114 INFO L87 Difference]: Start difference. First operand 172 states and 177 transitions. Second operand 45 states. [2021-02-23 18:47:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:29,002 INFO L93 Difference]: Finished difference Result 219 states and 229 transitions. [2021-02-23 18:47:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-23 18:47:29,003 INFO L78 Accepts]: Start accepts. Automaton has 45 states. Word has length 161 [2021-02-23 18:47:29,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:29,004 INFO L225 Difference]: With dead ends: 219 [2021-02-23 18:47:29,004 INFO L226 Difference]: Without dead ends: 182 [2021-02-23 18:47:29,006 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1314 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=2201, Invalid=5281, Unknown=0, NotChecked=0, Total=7482 [2021-02-23 18:47:29,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-02-23 18:47:29,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2021-02-23 18:47:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2021-02-23 18:47:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 183 transitions. [2021-02-23 18:47:29,033 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 183 transitions. Word has length 161 [2021-02-23 18:47:29,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:29,033 INFO L480 AbstractCegarLoop]: Abstraction has 178 states and 183 transitions. [2021-02-23 18:47:29,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 45 states. [2021-02-23 18:47:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 183 transitions. [2021-02-23 18:47:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-23 18:47:29,035 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:29,035 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 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] [2021-02-23 18:47:29,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-23 18:47:29,035 INFO L428 AbstractCegarLoop]: === Iteration 23 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:29,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:29,036 INFO L82 PathProgramCache]: Analyzing trace with hash 264694944, now seen corresponding path program 20 times [2021-02-23 18:47:29,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:29,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963956922] [2021-02-23 18:47:29,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:29,047 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:29,049 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:29,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:29,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:29,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:29,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:29,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:29,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:29,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:29,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:29,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:29,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:29,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:29,244 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:29,244 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:29,254 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,271 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,272 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,309 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,310 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,334 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,335 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,361 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,362 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,424 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,426 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,456 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,524 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,565 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,566 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,600 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,601 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,639 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,678 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,679 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,719 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,720 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,762 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,763 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,803 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,803 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,848 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,849 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,895 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,896 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,944 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,944 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:29,992 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:29,993 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,043 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,097 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,099 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,148 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,149 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,204 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,205 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,261 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,262 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,379 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,380 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,438 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,500 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,500 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,564 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,565 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,628 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,692 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,692 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,757 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,758 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,837 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,838 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,904 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,905 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:30,974 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:30,975 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:31,049 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:31,050 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:31,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:31,122 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:31,196 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:31,197 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:31,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:31,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:31,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:31,395 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963956922] [2021-02-23 18:47:31,395 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:31,395 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2021-02-23 18:47:31,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101661282] [2021-02-23 18:47:31,396 INFO L460 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-02-23 18:47:31,396 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:31,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-02-23 18:47:31,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=532, Invalid=1630, Unknown=0, NotChecked=0, Total=2162 [2021-02-23 18:47:31,397 INFO L87 Difference]: Start difference. First operand 178 states and 183 transitions. Second operand 47 states. [2021-02-23 18:47:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:34,844 INFO L93 Difference]: Finished difference Result 225 states and 235 transitions. [2021-02-23 18:47:34,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-02-23 18:47:34,845 INFO L78 Accepts]: Start accepts. Automaton has 47 states. Word has length 167 [2021-02-23 18:47:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:34,847 INFO L225 Difference]: With dead ends: 225 [2021-02-23 18:47:34,847 INFO L226 Difference]: Without dead ends: 188 [2021-02-23 18:47:34,848 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2415, Invalid=5775, Unknown=0, NotChecked=0, Total=8190 [2021-02-23 18:47:34,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-02-23 18:47:34,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2021-02-23 18:47:34,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2021-02-23 18:47:34,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 189 transitions. [2021-02-23 18:47:34,869 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 189 transitions. Word has length 167 [2021-02-23 18:47:34,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:34,870 INFO L480 AbstractCegarLoop]: Abstraction has 184 states and 189 transitions. [2021-02-23 18:47:34,870 INFO L481 AbstractCegarLoop]: Interpolant automaton has 47 states. [2021-02-23 18:47:34,870 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 189 transitions. [2021-02-23 18:47:34,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2021-02-23 18:47:34,871 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:34,871 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 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] [2021-02-23 18:47:34,871 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-23 18:47:34,872 INFO L428 AbstractCegarLoop]: === Iteration 24 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:34,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:34,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1283759292, now seen corresponding path program 21 times [2021-02-23 18:47:34,872 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:34,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27099714] [2021-02-23 18:47:34,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:34,884 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:34,885 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:34,955 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:34,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:34,957 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:34,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:34,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:34,979 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:34,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:34,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:35,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:35,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:35,101 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:35,102 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:35,113 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,114 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,136 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,137 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,157 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,158 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,180 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,181 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,204 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,205 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,227 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,274 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,300 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,329 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,329 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,356 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,357 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,386 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,387 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,417 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,418 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,448 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,482 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,483 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,552 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,553 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,589 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,629 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,633 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,677 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,677 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,723 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,723 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,773 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,774 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,823 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,874 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,875 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,928 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:35,981 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:35,982 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,037 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,037 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,093 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,095 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,151 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,151 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,210 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,211 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,270 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,271 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,391 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,392 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,458 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,524 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,598 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,664 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,665 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,735 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,736 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,806 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,807 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,878 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,879 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:36,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:36,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:37,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:37,031 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:37,115 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:37,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:37,193 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:37,194 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:37,272 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:37,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:37,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:37,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27099714] [2021-02-23 18:47:37,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:37,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2021-02-23 18:47:37,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331235355] [2021-02-23 18:47:37,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-02-23 18:47:37,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:37,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-02-23 18:47:37,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=579, Invalid=1773, Unknown=0, NotChecked=0, Total=2352 [2021-02-23 18:47:37,407 INFO L87 Difference]: Start difference. First operand 184 states and 189 transitions. Second operand 49 states. [2021-02-23 18:47:41,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:41,240 INFO L93 Difference]: Finished difference Result 231 states and 241 transitions. [2021-02-23 18:47:41,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-02-23 18:47:41,241 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 173 [2021-02-23 18:47:41,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:41,242 INFO L225 Difference]: With dead ends: 231 [2021-02-23 18:47:41,242 INFO L226 Difference]: Without dead ends: 194 [2021-02-23 18:47:41,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1578 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2639, Invalid=6291, Unknown=0, NotChecked=0, Total=8930 [2021-02-23 18:47:41,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-02-23 18:47:41,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 190. [2021-02-23 18:47:41,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2021-02-23 18:47:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 195 transitions. [2021-02-23 18:47:41,272 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 195 transitions. Word has length 173 [2021-02-23 18:47:41,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:41,273 INFO L480 AbstractCegarLoop]: Abstraction has 190 states and 195 transitions. [2021-02-23 18:47:41,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 49 states. [2021-02-23 18:47:41,273 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 195 transitions. [2021-02-23 18:47:41,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-02-23 18:47:41,274 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:41,274 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 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] [2021-02-23 18:47:41,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-23 18:47:41,274 INFO L428 AbstractCegarLoop]: === Iteration 25 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:41,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:41,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1500301272, now seen corresponding path program 22 times [2021-02-23 18:47:41,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:41,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027466512] [2021-02-23 18:47:41,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:41,287 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:41,288 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:41,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:41,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:41,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:41,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:41,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:41,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:41,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:41,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:41,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:41,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:41,509 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:41,510 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:41,521 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,563 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,564 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,589 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,617 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,646 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,647 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,677 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,678 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,709 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,739 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,740 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,766 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,767 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,797 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,825 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,826 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,856 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,857 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,887 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,888 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,921 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,921 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:41,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:41,990 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,033 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,034 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,080 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,080 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,127 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,129 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,170 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,170 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,217 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,218 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,268 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,269 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,319 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,373 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,427 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,428 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,484 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,485 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,541 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,542 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,599 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,600 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,721 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,722 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,784 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,784 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,848 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,849 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:42,980 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:42,980 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,048 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,049 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,118 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,119 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,189 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,190 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,261 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,261 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,338 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,338 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,421 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,421 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,497 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,498 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,577 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,577 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,656 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,656 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,736 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,737 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,817 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:43,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:43,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:43,900 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:44,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:44,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027466512] [2021-02-23 18:47:44,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:44,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [51] imperfect sequences [] total 51 [2021-02-23 18:47:44,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965223315] [2021-02-23 18:47:44,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 51 states [2021-02-23 18:47:44,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:44,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-02-23 18:47:44,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=628, Invalid=1922, Unknown=0, NotChecked=0, Total=2550 [2021-02-23 18:47:44,044 INFO L87 Difference]: Start difference. First operand 190 states and 195 transitions. Second operand 51 states. [2021-02-23 18:47:47,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:47,941 INFO L93 Difference]: Finished difference Result 237 states and 247 transitions. [2021-02-23 18:47:47,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-23 18:47:47,942 INFO L78 Accepts]: Start accepts. Automaton has 51 states. Word has length 179 [2021-02-23 18:47:47,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:47,944 INFO L225 Difference]: With dead ends: 237 [2021-02-23 18:47:47,944 INFO L226 Difference]: Without dead ends: 200 [2021-02-23 18:47:47,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1719 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=2873, Invalid=6829, Unknown=0, NotChecked=0, Total=9702 [2021-02-23 18:47:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2021-02-23 18:47:47,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 196. [2021-02-23 18:47:47,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196 states. [2021-02-23 18:47:47,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 201 transitions. [2021-02-23 18:47:47,977 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 201 transitions. Word has length 179 [2021-02-23 18:47:47,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:47,978 INFO L480 AbstractCegarLoop]: Abstraction has 196 states and 201 transitions. [2021-02-23 18:47:47,978 INFO L481 AbstractCegarLoop]: Interpolant automaton has 51 states. [2021-02-23 18:47:47,978 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 201 transitions. [2021-02-23 18:47:47,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-02-23 18:47:47,979 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:47,979 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 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] [2021-02-23 18:47:47,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-23 18:47:47,980 INFO L428 AbstractCegarLoop]: === Iteration 26 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:47,980 INFO L82 PathProgramCache]: Analyzing trace with hash -1921569292, now seen corresponding path program 23 times [2021-02-23 18:47:47,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:47,981 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612555478] [2021-02-23 18:47:47,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:47,991 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:47,992 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:48,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:48,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:48,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:48,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:48,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:48,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:48,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:48,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:48,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:48,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:48,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:48,214 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:48,215 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:48,216 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:48,227 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,274 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,275 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,298 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,299 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,320 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,321 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,344 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,345 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,368 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,369 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,393 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,394 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,419 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,420 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,448 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,475 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,476 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,505 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,505 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,534 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,535 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,565 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,566 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,597 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,637 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,637 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,679 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,680 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,724 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,724 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,768 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,769 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,815 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,815 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,862 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,862 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,910 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,911 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:48,961 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:48,962 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,013 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,014 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,066 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,067 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,122 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,177 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,178 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,236 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,236 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,295 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,295 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,355 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,356 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,417 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,418 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,480 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,481 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,544 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,544 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,619 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,686 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,687 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,755 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,755 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,824 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,825 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,894 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,895 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:49,967 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:49,968 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,116 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,117 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,197 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,198 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,278 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,278 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,356 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,357 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,436 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,437 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,518 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,518 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,603 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:50,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:50,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:50,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:50,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:50,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612555478] [2021-02-23 18:47:50,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:50,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2021-02-23 18:47:50,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510608907] [2021-02-23 18:47:50,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-02-23 18:47:50,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:50,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-02-23 18:47:50,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=679, Invalid=2077, Unknown=0, NotChecked=0, Total=2756 [2021-02-23 18:47:50,862 INFO L87 Difference]: Start difference. First operand 196 states and 201 transitions. Second operand 53 states. [2021-02-23 18:47:55,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:47:55,161 INFO L93 Difference]: Finished difference Result 243 states and 253 transitions. [2021-02-23 18:47:55,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-02-23 18:47:55,162 INFO L78 Accepts]: Start accepts. Automaton has 53 states. Word has length 185 [2021-02-23 18:47:55,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:47:55,164 INFO L225 Difference]: With dead ends: 243 [2021-02-23 18:47:55,165 INFO L226 Difference]: Without dead ends: 206 [2021-02-23 18:47:55,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1866 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=3117, Invalid=7389, Unknown=0, NotChecked=0, Total=10506 [2021-02-23 18:47:55,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-02-23 18:47:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 202. [2021-02-23 18:47:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2021-02-23 18:47:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 207 transitions. [2021-02-23 18:47:55,203 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 207 transitions. Word has length 185 [2021-02-23 18:47:55,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:47:55,204 INFO L480 AbstractCegarLoop]: Abstraction has 202 states and 207 transitions. [2021-02-23 18:47:55,204 INFO L481 AbstractCegarLoop]: Interpolant automaton has 53 states. [2021-02-23 18:47:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 207 transitions. [2021-02-23 18:47:55,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-02-23 18:47:55,205 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:47:55,205 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 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] [2021-02-23 18:47:55,206 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-23 18:47:55,206 INFO L428 AbstractCegarLoop]: === Iteration 27 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:47:55,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:47:55,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1765044464, now seen corresponding path program 24 times [2021-02-23 18:47:55,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:47:55,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662166042] [2021-02-23 18:47:55,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:47:55,217 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:47:55,218 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:47:55,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:55,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:55,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:55,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:55,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:55,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:47:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:55,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:55,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:55,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:47:55,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:47:55,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:55,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:47:55,425 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:47:55,425 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:47:55,435 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,436 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,456 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,476 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,476 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,499 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,500 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,521 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,546 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,569 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,570 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,595 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,596 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,625 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,626 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,660 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,661 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,706 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,706 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,741 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,779 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,780 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,819 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,820 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,857 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,858 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,898 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,898 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,943 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,944 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:55,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:55,990 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,036 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,037 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,084 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,085 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,134 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,135 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,185 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,186 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,237 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,345 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,345 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,456 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,514 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,515 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,574 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,574 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,635 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,636 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,697 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,698 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,761 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,762 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,825 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,826 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,893 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,894 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:56,960 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:56,961 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,030 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,100 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,101 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,173 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,245 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,246 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,320 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,321 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,396 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,397 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,473 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,474 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,552 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,553 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,640 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,641 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,722 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,723 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,804 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,805 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,888 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,889 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:57,973 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:57,973 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:58,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:47:58,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:47:58,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:47:58,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:47:58,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:47:58,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662166042] [2021-02-23 18:47:58,328 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:47:58,328 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [55] imperfect sequences [] total 55 [2021-02-23 18:47:58,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854677816] [2021-02-23 18:47:58,328 INFO L460 AbstractCegarLoop]: Interpolant automaton has 55 states [2021-02-23 18:47:58,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:47:58,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-02-23 18:47:58,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=732, Invalid=2238, Unknown=0, NotChecked=0, Total=2970 [2021-02-23 18:47:58,329 INFO L87 Difference]: Start difference. First operand 202 states and 207 transitions. Second operand 55 states. [2021-02-23 18:48:02,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:02,706 INFO L93 Difference]: Finished difference Result 249 states and 259 transitions. [2021-02-23 18:48:02,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-02-23 18:48:02,707 INFO L78 Accepts]: Start accepts. Automaton has 55 states. Word has length 191 [2021-02-23 18:48:02,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:02,709 INFO L225 Difference]: With dead ends: 249 [2021-02-23 18:48:02,710 INFO L226 Difference]: Without dead ends: 212 [2021-02-23 18:48:02,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2019 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3371, Invalid=7971, Unknown=0, NotChecked=0, Total=11342 [2021-02-23 18:48:02,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-02-23 18:48:02,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 208. [2021-02-23 18:48:02,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2021-02-23 18:48:02,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 213 transitions. [2021-02-23 18:48:02,743 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 213 transitions. Word has length 191 [2021-02-23 18:48:02,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:02,743 INFO L480 AbstractCegarLoop]: Abstraction has 208 states and 213 transitions. [2021-02-23 18:48:02,743 INFO L481 AbstractCegarLoop]: Interpolant automaton has 55 states. [2021-02-23 18:48:02,743 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 213 transitions. [2021-02-23 18:48:02,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2021-02-23 18:48:02,744 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:02,744 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 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] [2021-02-23 18:48:02,745 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-23 18:48:02,745 INFO L428 AbstractCegarLoop]: === Iteration 28 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:02,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1455532844, now seen corresponding path program 25 times [2021-02-23 18:48:02,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:02,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078976519] [2021-02-23 18:48:02,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:02,755 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:02,756 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:02,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:02,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:02,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:02,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:02,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:02,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:02,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:02,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:02,969 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:02,970 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:02,981 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:02,981 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,000 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,001 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,022 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,022 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,045 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,045 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,095 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,096 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,122 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,150 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,151 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,179 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,180 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,213 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,213 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,251 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,329 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,369 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,370 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,412 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,413 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,456 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,502 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,503 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,550 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,550 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,598 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,660 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,710 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,711 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,764 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,764 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,827 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,828 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,881 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,882 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,938 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,939 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:03,997 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:03,998 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,122 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,185 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,186 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,248 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,249 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,314 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,315 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,381 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,382 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,453 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,454 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,520 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,591 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,592 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,662 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,662 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,734 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,737 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,808 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,809 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,883 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,885 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:04,960 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:04,961 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,038 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,038 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,116 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,197 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,198 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,278 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,278 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,360 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,361 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,447 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,450 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,522 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,616 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,705 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,706 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,797 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,888 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:05,889 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:05,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:05,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:06,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:06,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078976519] [2021-02-23 18:48:06,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:06,164 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [] total 57 [2021-02-23 18:48:06,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962130395] [2021-02-23 18:48:06,164 INFO L460 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-02-23 18:48:06,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:06,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-02-23 18:48:06,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=787, Invalid=2405, Unknown=0, NotChecked=0, Total=3192 [2021-02-23 18:48:06,166 INFO L87 Difference]: Start difference. First operand 208 states and 213 transitions. Second operand 57 states. [2021-02-23 18:48:10,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:10,898 INFO L93 Difference]: Finished difference Result 255 states and 265 transitions. [2021-02-23 18:48:10,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-02-23 18:48:10,899 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 197 [2021-02-23 18:48:10,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:10,902 INFO L225 Difference]: With dead ends: 255 [2021-02-23 18:48:10,902 INFO L226 Difference]: Without dead ends: 218 [2021-02-23 18:48:10,904 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2178 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=3635, Invalid=8575, Unknown=0, NotChecked=0, Total=12210 [2021-02-23 18:48:10,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-02-23 18:48:10,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 214. [2021-02-23 18:48:10,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2021-02-23 18:48:10,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 219 transitions. [2021-02-23 18:48:10,944 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 219 transitions. Word has length 197 [2021-02-23 18:48:10,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:10,944 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 219 transitions. [2021-02-23 18:48:10,944 INFO L481 AbstractCegarLoop]: Interpolant automaton has 57 states. [2021-02-23 18:48:10,944 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 219 transitions. [2021-02-23 18:48:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-02-23 18:48:10,946 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:10,946 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 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] [2021-02-23 18:48:10,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-02-23 18:48:10,946 INFO L428 AbstractCegarLoop]: === Iteration 29 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:10,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:10,947 INFO L82 PathProgramCache]: Analyzing trace with hash -1109310904, now seen corresponding path program 26 times [2021-02-23 18:48:10,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:10,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1263330108] [2021-02-23 18:48:10,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:10,958 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:10,960 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:11,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:11,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:11,041 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:11,042 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:11,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:11,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:11,063 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:11,064 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:11,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:11,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:11,196 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:11,197 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:11,197 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:11,209 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,209 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,229 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,230 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,254 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,255 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,280 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,281 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,308 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,309 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,335 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,335 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,360 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,361 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,389 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,390 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,420 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,420 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,452 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,453 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,484 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,485 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,518 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,519 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,553 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,554 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,589 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,589 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,624 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,625 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,723 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,723 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,762 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,763 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,807 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,808 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,858 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,858 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,909 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,910 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:11,962 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:11,963 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,015 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,016 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,126 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,126 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,184 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,243 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,244 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,304 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,305 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,367 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,368 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,498 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,499 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,565 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,566 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,628 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,695 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,696 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,767 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,840 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,841 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,915 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,916 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:12,991 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:12,992 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,148 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,149 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,230 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,231 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,312 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,313 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,396 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,397 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,481 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,482 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,567 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,663 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,663 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,752 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,753 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,844 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,845 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:13,936 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:13,937 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:14,035 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:14,036 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:14,131 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:14,132 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:14,229 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:14,231 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:14,326 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:14,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:14,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:14,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:14,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1263330108] [2021-02-23 18:48:14,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:14,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [59] imperfect sequences [] total 59 [2021-02-23 18:48:14,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761794418] [2021-02-23 18:48:14,626 INFO L460 AbstractCegarLoop]: Interpolant automaton has 59 states [2021-02-23 18:48:14,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:14,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-02-23 18:48:14,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=844, Invalid=2578, Unknown=0, NotChecked=0, Total=3422 [2021-02-23 18:48:14,627 INFO L87 Difference]: Start difference. First operand 214 states and 219 transitions. Second operand 59 states. [2021-02-23 18:48:20,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:20,360 INFO L93 Difference]: Finished difference Result 261 states and 271 transitions. [2021-02-23 18:48:20,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-02-23 18:48:20,361 INFO L78 Accepts]: Start accepts. Automaton has 59 states. Word has length 203 [2021-02-23 18:48:20,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:20,363 INFO L225 Difference]: With dead ends: 261 [2021-02-23 18:48:20,363 INFO L226 Difference]: Without dead ends: 224 [2021-02-23 18:48:20,365 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2343 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=3909, Invalid=9201, Unknown=0, NotChecked=0, Total=13110 [2021-02-23 18:48:20,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-02-23 18:48:20,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2021-02-23 18:48:20,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2021-02-23 18:48:20,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 225 transitions. [2021-02-23 18:48:20,399 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 225 transitions. Word has length 203 [2021-02-23 18:48:20,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:20,399 INFO L480 AbstractCegarLoop]: Abstraction has 220 states and 225 transitions. [2021-02-23 18:48:20,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 59 states. [2021-02-23 18:48:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 225 transitions. [2021-02-23 18:48:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-02-23 18:48:20,400 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:20,400 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 27, 27, 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] [2021-02-23 18:48:20,400 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-02-23 18:48:20,400 INFO L428 AbstractCegarLoop]: === Iteration 30 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:20,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:20,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1478355868, now seen corresponding path program 27 times [2021-02-23 18:48:20,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:20,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [343228899] [2021-02-23 18:48:20,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:20,410 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:20,411 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:20,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:20,492 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:20,493 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:20,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:20,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:20,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:20,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:20,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:20,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:20,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:20,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:20,649 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:20,649 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:20,661 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,661 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,709 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,734 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,735 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,759 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,760 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,790 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,791 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,823 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,859 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,860 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,895 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,896 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,932 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,933 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:20,971 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:20,972 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,012 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,013 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,054 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,055 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,099 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,099 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,144 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,146 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,190 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,191 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,238 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,239 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,289 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,340 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,394 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,395 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,447 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,448 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,501 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,502 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,556 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,557 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,613 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,614 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,672 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,673 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,733 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,734 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,794 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,795 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,858 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,859 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:21,935 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:21,938 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,003 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,004 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,139 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,140 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,209 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,210 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,280 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,281 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,355 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,355 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,429 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,430 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,507 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,584 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,585 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,664 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,665 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,746 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,747 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,829 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,830 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:22,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:22,999 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,000 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,087 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,088 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,175 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,176 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,265 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,266 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,358 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,359 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,454 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,455 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,549 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,550 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,645 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,646 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,741 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,742 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,841 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,842 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:23,941 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:23,942 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:24,052 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:24,053 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:24,155 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:24,156 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:24,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:24,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:24,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:24,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [343228899] [2021-02-23 18:48:24,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:24,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [61] imperfect sequences [] total 61 [2021-02-23 18:48:24,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151245538] [2021-02-23 18:48:24,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 61 states [2021-02-23 18:48:24,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:24,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-02-23 18:48:24,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=2757, Unknown=0, NotChecked=0, Total=3660 [2021-02-23 18:48:24,483 INFO L87 Difference]: Start difference. First operand 220 states and 225 transitions. Second operand 61 states. [2021-02-23 18:48:30,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:30,263 INFO L93 Difference]: Finished difference Result 267 states and 277 transitions. [2021-02-23 18:48:30,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-02-23 18:48:30,264 INFO L78 Accepts]: Start accepts. Automaton has 61 states. Word has length 209 [2021-02-23 18:48:30,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:30,266 INFO L225 Difference]: With dead ends: 267 [2021-02-23 18:48:30,266 INFO L226 Difference]: Without dead ends: 230 [2021-02-23 18:48:30,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2514 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=4193, Invalid=9849, Unknown=0, NotChecked=0, Total=14042 [2021-02-23 18:48:30,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-02-23 18:48:30,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-02-23 18:48:30,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2021-02-23 18:48:30,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 231 transitions. [2021-02-23 18:48:30,308 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 231 transitions. Word has length 209 [2021-02-23 18:48:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:30,309 INFO L480 AbstractCegarLoop]: Abstraction has 226 states and 231 transitions. [2021-02-23 18:48:30,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 61 states. [2021-02-23 18:48:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 231 transitions. [2021-02-23 18:48:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-02-23 18:48:30,310 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:30,310 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 28, 28, 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] [2021-02-23 18:48:30,311 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-02-23 18:48:30,311 INFO L428 AbstractCegarLoop]: === Iteration 31 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:30,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:30,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1213472384, now seen corresponding path program 28 times [2021-02-23 18:48:30,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:30,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [357806675] [2021-02-23 18:48:30,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:30,322 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:30,323 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:30,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:30,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:30,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:30,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:30,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:30,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:30,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:30,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:30,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:30,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:30,599 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:30,600 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:30,613 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,614 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,639 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,667 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,668 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,700 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,730 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,731 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,759 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,759 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,827 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,828 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,864 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,902 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,903 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,940 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,941 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:30,983 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:30,984 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,025 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,026 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,070 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,071 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,117 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,118 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,165 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,166 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,214 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,215 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,264 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,316 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,317 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,373 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,429 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,430 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,488 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,546 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,605 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,666 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,667 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,795 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,796 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,862 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,863 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,929 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,930 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:31,998 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:31,999 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,071 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,072 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,143 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,144 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,217 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,218 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,293 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,294 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,370 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,371 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,458 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,536 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,536 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,617 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,786 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,788 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,877 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,878 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:32,969 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:32,970 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,063 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,064 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,154 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,244 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,245 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,340 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,436 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,436 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,532 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,533 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,631 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,632 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,732 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,733 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,834 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,835 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:33,937 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:33,938 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,044 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:34,045 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,151 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:34,152 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,259 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:34,264 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:34,373 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,484 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:34,485 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:34,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:34,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:34,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [357806675] [2021-02-23 18:48:34,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:34,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2021-02-23 18:48:34,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566792294] [2021-02-23 18:48:34,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 63 states [2021-02-23 18:48:34,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:34,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-02-23 18:48:34,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=964, Invalid=2942, Unknown=0, NotChecked=0, Total=3906 [2021-02-23 18:48:34,824 INFO L87 Difference]: Start difference. First operand 226 states and 231 transitions. Second operand 63 states. [2021-02-23 18:48:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:41,347 INFO L93 Difference]: Finished difference Result 273 states and 283 transitions. [2021-02-23 18:48:41,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-02-23 18:48:41,348 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 215 [2021-02-23 18:48:41,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:41,350 INFO L225 Difference]: With dead ends: 273 [2021-02-23 18:48:41,350 INFO L226 Difference]: Without dead ends: 236 [2021-02-23 18:48:41,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2691 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=4487, Invalid=10519, Unknown=0, NotChecked=0, Total=15006 [2021-02-23 18:48:41,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-02-23 18:48:41,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2021-02-23 18:48:41,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2021-02-23 18:48:41,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 237 transitions. [2021-02-23 18:48:41,384 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 237 transitions. Word has length 215 [2021-02-23 18:48:41,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:41,385 INFO L480 AbstractCegarLoop]: Abstraction has 232 states and 237 transitions. [2021-02-23 18:48:41,385 INFO L481 AbstractCegarLoop]: Interpolant automaton has 63 states. [2021-02-23 18:48:41,385 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 237 transitions. [2021-02-23 18:48:41,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-23 18:48:41,386 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:41,386 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 29, 29, 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] [2021-02-23 18:48:41,386 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-02-23 18:48:41,386 INFO L428 AbstractCegarLoop]: === Iteration 32 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:41,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:41,387 INFO L82 PathProgramCache]: Analyzing trace with hash 861301148, now seen corresponding path program 29 times [2021-02-23 18:48:41,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:41,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074031756] [2021-02-23 18:48:41,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:41,398 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:41,400 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:41,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:41,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:41,505 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:41,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:41,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:41,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:41,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:41,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:41,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:41,675 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:41,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:41,678 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:41,679 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:41,693 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,694 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,719 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,720 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,746 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,747 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,777 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,778 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,810 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,811 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,842 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,842 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,874 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,875 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,954 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,955 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:41,995 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:41,995 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,035 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,035 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,076 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,077 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,122 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,168 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,169 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,217 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,218 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,270 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,271 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,378 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,379 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,434 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,435 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,491 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,492 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,549 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,550 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,608 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,671 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,672 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,735 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,736 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,801 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,802 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,869 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,870 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:42,937 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:42,938 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,008 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,009 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,081 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,082 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,156 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,157 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,232 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,233 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,310 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,311 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,480 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,491 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,568 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,569 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,652 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,653 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,737 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,738 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,823 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:43,912 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:43,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,002 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,003 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,093 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,094 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,187 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,188 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,281 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,282 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,380 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,381 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,483 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,484 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,583 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,584 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,685 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,686 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:44,896 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:44,897 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,003 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,004 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,112 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,113 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,221 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,222 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,331 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,332 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,556 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,557 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,684 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,802 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,805 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:45,925 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:45,926 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:46,048 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:46,049 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:46,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:46,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:46,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074031756] [2021-02-23 18:48:46,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:46,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [65] imperfect sequences [] total 65 [2021-02-23 18:48:46,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547815840] [2021-02-23 18:48:46,409 INFO L460 AbstractCegarLoop]: Interpolant automaton has 65 states [2021-02-23 18:48:46,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:46,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-02-23 18:48:46,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1027, Invalid=3133, Unknown=0, NotChecked=0, Total=4160 [2021-02-23 18:48:46,411 INFO L87 Difference]: Start difference. First operand 232 states and 237 transitions. Second operand 65 states. [2021-02-23 18:48:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:48:53,339 INFO L93 Difference]: Finished difference Result 279 states and 289 transitions. [2021-02-23 18:48:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-02-23 18:48:53,340 INFO L78 Accepts]: Start accepts. Automaton has 65 states. Word has length 221 [2021-02-23 18:48:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:48:53,343 INFO L225 Difference]: With dead ends: 279 [2021-02-23 18:48:53,343 INFO L226 Difference]: Without dead ends: 242 [2021-02-23 18:48:53,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2874 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=4791, Invalid=11211, Unknown=0, NotChecked=0, Total=16002 [2021-02-23 18:48:53,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-02-23 18:48:53,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 238. [2021-02-23 18:48:53,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2021-02-23 18:48:53,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 243 transitions. [2021-02-23 18:48:53,378 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 243 transitions. Word has length 221 [2021-02-23 18:48:53,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:48:53,378 INFO L480 AbstractCegarLoop]: Abstraction has 238 states and 243 transitions. [2021-02-23 18:48:53,378 INFO L481 AbstractCegarLoop]: Interpolant automaton has 65 states. [2021-02-23 18:48:53,378 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 243 transitions. [2021-02-23 18:48:53,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-23 18:48:53,379 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:48:53,380 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 30, 30, 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] [2021-02-23 18:48:53,380 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-02-23 18:48:53,380 INFO L428 AbstractCegarLoop]: === Iteration 33 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:48:53,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:48:53,380 INFO L82 PathProgramCache]: Analyzing trace with hash -534156104, now seen corresponding path program 30 times [2021-02-23 18:48:53,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:48:53,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2053701185] [2021-02-23 18:48:53,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:48:53,392 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:48:53,394 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:48:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:53,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:53,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:53,495 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:53,496 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:53,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:48:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:53,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:53,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:53,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:48:53,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:48:53,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:53,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:48:53,685 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:48:53,686 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:48:53,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,736 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,737 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,776 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,777 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,818 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,819 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,866 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,868 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,911 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,912 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:53,960 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:53,961 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,009 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,010 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,059 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,061 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,113 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,114 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,171 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,172 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,228 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,229 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,351 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,352 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,407 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,465 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,467 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,519 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,520 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,576 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,577 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,639 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,698 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,793 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,794 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,864 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,866 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:54,931 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:54,932 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,004 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,005 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,074 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,145 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,146 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,216 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,217 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,366 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,367 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,523 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,524 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,606 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,607 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,689 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,690 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,777 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,778 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,864 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:55,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:55,951 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,135 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,136 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,229 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,230 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,424 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,425 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,524 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,626 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,627 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,730 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,731 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,834 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,835 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:56,943 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:56,944 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,059 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,060 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,170 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,171 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,293 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,295 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,407 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,522 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,523 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,639 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,640 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,758 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,759 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:57,880 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:57,881 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,006 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,007 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,133 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,134 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,260 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,261 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,392 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,393 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,522 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,523 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,653 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,654 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,790 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:48:58,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:48:58,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:48:58,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:48:59,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:48:59,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2053701185] [2021-02-23 18:48:59,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:48:59,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2021-02-23 18:48:59,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480792241] [2021-02-23 18:48:59,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-02-23 18:48:59,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:48:59,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-02-23 18:48:59,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=3330, Unknown=0, NotChecked=0, Total=4422 [2021-02-23 18:48:59,181 INFO L87 Difference]: Start difference. First operand 238 states and 243 transitions. Second operand 67 states. [2021-02-23 18:49:07,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:49:07,260 INFO L93 Difference]: Finished difference Result 285 states and 295 transitions. [2021-02-23 18:49:07,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-02-23 18:49:07,262 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 227 [2021-02-23 18:49:07,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:49:07,263 INFO L225 Difference]: With dead ends: 285 [2021-02-23 18:49:07,264 INFO L226 Difference]: Without dead ends: 248 [2021-02-23 18:49:07,266 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3063 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5105, Invalid=11925, Unknown=0, NotChecked=0, Total=17030 [2021-02-23 18:49:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2021-02-23 18:49:07,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 244. [2021-02-23 18:49:07,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2021-02-23 18:49:07,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 249 transitions. [2021-02-23 18:49:07,332 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 249 transitions. Word has length 227 [2021-02-23 18:49:07,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:49:07,333 INFO L480 AbstractCegarLoop]: Abstraction has 244 states and 249 transitions. [2021-02-23 18:49:07,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2021-02-23 18:49:07,333 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 249 transitions. [2021-02-23 18:49:07,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-02-23 18:49:07,334 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:49:07,334 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 31, 31, 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] [2021-02-23 18:49:07,334 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-02-23 18:49:07,334 INFO L428 AbstractCegarLoop]: === Iteration 34 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:49:07,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:49:07,335 INFO L82 PathProgramCache]: Analyzing trace with hash -560157996, now seen corresponding path program 31 times [2021-02-23 18:49:07,335 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:49:07,335 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2008342692] [2021-02-23 18:49:07,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:49:07,346 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:49:07,348 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:49:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:07,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:07,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:07,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:07,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:07,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:49:07,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:07,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:07,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:07,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:49:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:07,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:07,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:07,662 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:49:07,663 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:49:07,678 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,680 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,709 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,710 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,743 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,744 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,782 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,816 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,855 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,856 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,897 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,900 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,946 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,948 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:07,994 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:07,996 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,043 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,091 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,092 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,142 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,143 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,196 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,248 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,249 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,304 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,305 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,359 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,361 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,418 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,419 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,480 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,482 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,546 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,610 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,611 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,676 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,677 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,744 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,746 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,815 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,892 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,893 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:08,966 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:08,967 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,046 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,048 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,129 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,130 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,212 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,213 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,313 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,315 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,397 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,398 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,485 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,486 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,577 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,578 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,669 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,671 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,765 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,766 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,859 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,860 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:09,956 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:09,958 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,053 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,054 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,152 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,153 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,256 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,257 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,373 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,485 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,486 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,593 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,594 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,702 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,703 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,813 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,814 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:10,925 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:10,926 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,043 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,162 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,163 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,282 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,283 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,408 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,410 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,534 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,535 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,658 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,659 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,788 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,789 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:11,925 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:11,926 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,056 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,057 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,187 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,189 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,456 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,736 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,737 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:12,885 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:12,886 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:13,032 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:13,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:13,177 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:13,178 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:13,322 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:13,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:13,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:13,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:49:13,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:49:13,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2008342692] [2021-02-23 18:49:13,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:49:13,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [69] imperfect sequences [] total 69 [2021-02-23 18:49:13,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685043821] [2021-02-23 18:49:13,748 INFO L460 AbstractCegarLoop]: Interpolant automaton has 69 states [2021-02-23 18:49:13,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:49:13,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-02-23 18:49:13,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1159, Invalid=3533, Unknown=0, NotChecked=0, Total=4692 [2021-02-23 18:49:13,750 INFO L87 Difference]: Start difference. First operand 244 states and 249 transitions. Second operand 69 states. [2021-02-23 18:49:22,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:49:22,867 INFO L93 Difference]: Finished difference Result 291 states and 301 transitions. [2021-02-23 18:49:22,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-02-23 18:49:22,868 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 233 [2021-02-23 18:49:22,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:49:22,870 INFO L225 Difference]: With dead ends: 291 [2021-02-23 18:49:22,870 INFO L226 Difference]: Without dead ends: 254 [2021-02-23 18:49:22,873 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3258 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=5429, Invalid=12661, Unknown=0, NotChecked=0, Total=18090 [2021-02-23 18:49:22,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-02-23 18:49:22,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-02-23 18:49:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-02-23 18:49:22,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 255 transitions. [2021-02-23 18:49:22,928 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 255 transitions. Word has length 233 [2021-02-23 18:49:22,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:49:22,928 INFO L480 AbstractCegarLoop]: Abstraction has 250 states and 255 transitions. [2021-02-23 18:49:22,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 69 states. [2021-02-23 18:49:22,928 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 255 transitions. [2021-02-23 18:49:22,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-02-23 18:49:22,930 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:49:22,930 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 32, 32, 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] [2021-02-23 18:49:22,931 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-02-23 18:49:22,931 INFO L428 AbstractCegarLoop]: === Iteration 35 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:49:22,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:49:22,931 INFO L82 PathProgramCache]: Analyzing trace with hash -2041060368, now seen corresponding path program 32 times [2021-02-23 18:49:22,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:49:22,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245775386] [2021-02-23 18:49:22,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:49:22,944 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:49:22,946 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:49:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:23,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:23,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:23,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:23,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:49:23,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:23,106 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:23,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:23,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:49:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:23,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:23,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:23,310 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:49:23,311 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:49:23,332 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,333 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,419 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,421 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,466 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,467 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,570 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,571 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,624 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,625 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,681 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,683 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,743 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,745 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,809 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,810 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,873 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,929 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:23,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:23,991 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,047 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,048 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,113 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,114 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,326 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,478 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,479 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,558 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,559 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,638 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,640 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,734 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,735 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,824 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,825 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:24,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:24,915 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,012 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,014 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,111 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,112 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,220 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,221 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,314 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,315 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,415 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,417 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,622 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,623 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,831 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,832 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:25,934 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:25,935 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,037 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,145 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,147 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,257 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,259 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,366 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,367 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,479 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,480 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,597 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,836 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,838 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:26,956 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:26,957 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,078 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,079 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,323 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,324 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,456 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,590 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,592 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,736 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,738 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:27,869 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:27,870 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,007 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,008 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,145 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,146 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,286 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,287 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,429 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,430 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,567 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,710 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,712 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:28,864 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:28,865 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,010 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,012 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,162 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,164 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,316 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,317 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,477 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,478 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,637 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,638 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,798 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,799 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:29,961 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:29,962 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:30,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:30,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:49:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:49:30,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245775386] [2021-02-23 18:49:30,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:49:30,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [71] imperfect sequences [] total 71 [2021-02-23 18:49:30,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133957443] [2021-02-23 18:49:30,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 71 states [2021-02-23 18:49:30,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:49:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-02-23 18:49:30,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=3742, Unknown=0, NotChecked=0, Total=4970 [2021-02-23 18:49:30,435 INFO L87 Difference]: Start difference. First operand 250 states and 255 transitions. Second operand 71 states. [2021-02-23 18:49:40,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:49:40,726 INFO L93 Difference]: Finished difference Result 297 states and 307 transitions. [2021-02-23 18:49:40,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-02-23 18:49:40,728 INFO L78 Accepts]: Start accepts. Automaton has 71 states. Word has length 239 [2021-02-23 18:49:40,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:49:40,729 INFO L225 Difference]: With dead ends: 297 [2021-02-23 18:49:40,730 INFO L226 Difference]: Without dead ends: 260 [2021-02-23 18:49:40,732 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3459 ImplicationChecksByTransitivity, 15.5s TimeCoverageRelationStatistics Valid=5763, Invalid=13419, Unknown=0, NotChecked=0, Total=19182 [2021-02-23 18:49:40,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-02-23 18:49:40,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 256. [2021-02-23 18:49:40,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2021-02-23 18:49:40,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 261 transitions. [2021-02-23 18:49:40,798 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 261 transitions. Word has length 239 [2021-02-23 18:49:40,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:49:40,799 INFO L480 AbstractCegarLoop]: Abstraction has 256 states and 261 transitions. [2021-02-23 18:49:40,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 71 states. [2021-02-23 18:49:40,799 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 261 transitions. [2021-02-23 18:49:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-02-23 18:49:40,801 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:49:40,802 INFO L422 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 33, 33, 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] [2021-02-23 18:49:40,802 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-02-23 18:49:40,802 INFO L428 AbstractCegarLoop]: === Iteration 36 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:49:40,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:49:40,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1110628364, now seen corresponding path program 33 times [2021-02-23 18:49:40,803 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:49:40,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1572449867] [2021-02-23 18:49:40,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:49:40,818 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:49:40,820 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:49:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:40,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:40,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:40,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:40,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:40,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:49:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:40,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:40,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:41,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:49:41,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:49:41,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:41,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:49:41,226 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:49:41,226 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:49:41,246 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,247 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,289 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,329 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,378 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,379 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,434 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,479 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,480 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,526 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,584 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,585 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,640 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,702 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,703 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,769 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,770 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,833 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,834 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,899 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,901 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:41,970 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:41,971 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,109 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,111 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,183 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,183 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,323 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,324 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,399 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,471 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,473 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,551 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,553 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,633 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,634 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,723 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,724 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,809 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,810 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:42,900 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:42,901 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,004 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,006 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,103 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,104 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,300 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,402 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,403 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,508 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,611 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,613 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,721 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,722 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,835 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,836 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:43,977 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:43,978 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,112 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,114 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,247 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,248 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,381 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,382 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,627 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,764 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,766 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:44,901 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:44,902 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,183 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,317 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,451 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,452 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,589 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,590 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,726 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,727 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:45,871 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:45,873 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,016 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,018 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,164 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,165 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,310 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,311 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,462 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,463 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,621 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,780 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:46,942 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:46,943 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,116 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,117 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,276 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,278 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,442 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,443 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,603 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,605 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,775 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:47,947 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:47,949 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:48,120 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:48,122 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:48,298 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:48,299 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:48,471 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:48,472 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:48,642 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:49:48,643 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:49:48,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:49:48,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:49:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:49:49,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1572449867] [2021-02-23 18:49:49,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:49:49,135 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [73] imperfect sequences [] total 73 [2021-02-23 18:49:49,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723767869] [2021-02-23 18:49:49,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-02-23 18:49:49,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:49:49,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-02-23 18:49:49,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1299, Invalid=3957, Unknown=0, NotChecked=0, Total=5256 [2021-02-23 18:49:49,137 INFO L87 Difference]: Start difference. First operand 256 states and 261 transitions. Second operand 73 states. [2021-02-23 18:50:00,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:50:00,554 INFO L93 Difference]: Finished difference Result 303 states and 313 transitions. [2021-02-23 18:50:00,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-02-23 18:50:00,556 INFO L78 Accepts]: Start accepts. Automaton has 73 states. Word has length 245 [2021-02-23 18:50:00,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:50:00,559 INFO L225 Difference]: With dead ends: 303 [2021-02-23 18:50:00,559 INFO L226 Difference]: Without dead ends: 266 [2021-02-23 18:50:00,562 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3666 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=6107, Invalid=14199, Unknown=0, NotChecked=0, Total=20306 [2021-02-23 18:50:00,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2021-02-23 18:50:00,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 262. [2021-02-23 18:50:00,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2021-02-23 18:50:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 267 transitions. [2021-02-23 18:50:00,641 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 267 transitions. Word has length 245 [2021-02-23 18:50:00,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:50:00,641 INFO L480 AbstractCegarLoop]: Abstraction has 262 states and 267 transitions. [2021-02-23 18:50:00,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 73 states. [2021-02-23 18:50:00,641 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 267 transitions. [2021-02-23 18:50:00,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-02-23 18:50:00,644 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:50:00,644 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 34, 34, 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] [2021-02-23 18:50:00,645 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-02-23 18:50:00,645 INFO L428 AbstractCegarLoop]: === Iteration 37 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:50:00,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:50:00,646 INFO L82 PathProgramCache]: Analyzing trace with hash 1815430952, now seen corresponding path program 34 times [2021-02-23 18:50:00,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:50:00,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866080249] [2021-02-23 18:50:00,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:50:00,661 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:50:00,663 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:50:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:00,789 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:00,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:00,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:00,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:00,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:50:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:00,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:00,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:00,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:50:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:01,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:01,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:01,061 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:50:01,062 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:50:01,082 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,084 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,125 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,127 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,169 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,171 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,220 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,221 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,269 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,272 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,322 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,323 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,373 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,425 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,427 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,478 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,479 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,536 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,538 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,657 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,658 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,794 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,796 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,866 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,867 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:01,936 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:01,937 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,004 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,005 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,078 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,079 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,152 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,154 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,241 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,242 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,325 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,326 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,421 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,423 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,514 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,515 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,709 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,710 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:02,908 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:02,909 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,002 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,004 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,106 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,108 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,207 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,209 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,311 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,313 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,539 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,541 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,652 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,653 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,768 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,770 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:03,889 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:03,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,009 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,011 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,157 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,159 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,292 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,293 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,418 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,420 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,551 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,552 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,680 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,681 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,824 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,826 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:04,960 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:04,961 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,112 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,113 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,253 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,554 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,556 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,700 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:05,857 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:05,858 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,014 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,015 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,325 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,326 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,661 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,663 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:06,833 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:06,834 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,001 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,003 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,177 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,179 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,358 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,359 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,540 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,541 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,713 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,714 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:07,897 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:07,898 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:08,093 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:08,096 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:08,283 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:08,284 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:08,467 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:08,468 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:08,654 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:08,655 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:08,840 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:08,840 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:09,032 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:09,034 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:09,230 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:09,231 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:09,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:09,427 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:09,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:50:09,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [866080249] [2021-02-23 18:50:09,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:50:09,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [75] imperfect sequences [] total 75 [2021-02-23 18:50:09,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079796788] [2021-02-23 18:50:09,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-02-23 18:50:09,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:50:09,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-02-23 18:50:09,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1372, Invalid=4178, Unknown=0, NotChecked=0, Total=5550 [2021-02-23 18:50:09,756 INFO L87 Difference]: Start difference. First operand 262 states and 267 transitions. Second operand 75 states. [2021-02-23 18:50:22,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:50:22,964 INFO L93 Difference]: Finished difference Result 309 states and 319 transitions. [2021-02-23 18:50:22,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-02-23 18:50:22,966 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 251 [2021-02-23 18:50:22,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:50:22,968 INFO L225 Difference]: With dead ends: 309 [2021-02-23 18:50:22,968 INFO L226 Difference]: Without dead ends: 272 [2021-02-23 18:50:22,970 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3879 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=6461, Invalid=15001, Unknown=0, NotChecked=0, Total=21462 [2021-02-23 18:50:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-02-23 18:50:23,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 268. [2021-02-23 18:50:23,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2021-02-23 18:50:23,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 273 transitions. [2021-02-23 18:50:23,017 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 273 transitions. Word has length 251 [2021-02-23 18:50:23,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:50:23,017 INFO L480 AbstractCegarLoop]: Abstraction has 268 states and 273 transitions. [2021-02-23 18:50:23,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 75 states. [2021-02-23 18:50:23,017 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 273 transitions. [2021-02-23 18:50:23,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-02-23 18:50:23,019 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:50:23,020 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 35, 35, 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] [2021-02-23 18:50:23,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-02-23 18:50:23,020 INFO L428 AbstractCegarLoop]: === Iteration 38 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:50:23,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:50:23,021 INFO L82 PathProgramCache]: Analyzing trace with hash 697758020, now seen corresponding path program 35 times [2021-02-23 18:50:23,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:50:23,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010813585] [2021-02-23 18:50:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:50:23,036 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:50:23,038 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:50:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:23,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:23,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:23,160 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:23,161 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:23,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:50:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:23,200 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:23,201 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:23,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:50:23,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:23,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:23,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:23,399 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:50:23,400 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:50:23,421 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,423 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,469 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,471 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,523 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,581 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,639 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,641 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,706 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,780 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,856 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,858 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:23,930 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:23,932 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,005 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,007 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,079 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,081 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,147 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,221 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,223 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,301 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,303 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,376 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,378 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,530 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,531 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,687 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,688 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,770 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,771 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,853 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,855 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:24,941 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:24,942 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,044 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,045 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,137 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,138 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,232 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,233 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,332 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,427 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,429 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,530 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,531 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,635 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,636 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,743 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,745 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,852 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,853 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:25,965 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:25,966 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,085 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,087 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,207 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,208 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,445 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,447 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,564 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,565 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,686 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,805 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,807 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:26,933 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:26,935 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,065 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,067 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,201 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,202 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,340 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,476 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,477 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,621 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,623 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,766 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,767 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:27,919 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:27,920 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,072 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,073 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,223 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,224 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,547 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,549 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,707 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:28,867 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:28,869 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,031 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,197 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,367 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,368 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,536 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,537 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,710 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,711 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:29,891 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:29,893 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:30,070 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:30,071 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:30,255 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:30,256 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:30,443 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:30,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:30,634 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:30,635 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:30,821 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:30,823 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,009 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,010 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,196 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,198 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,392 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,393 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,590 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,799 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,801 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:31,997 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:31,998 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:32,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:32,196 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:32,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:32,397 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:32,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:50:32,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010813585] [2021-02-23 18:50:32,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:50:32,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2021-02-23 18:50:32,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589182] [2021-02-23 18:50:32,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 77 states [2021-02-23 18:50:32,742 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:50:32,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-02-23 18:50:32,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1447, Invalid=4405, Unknown=0, NotChecked=0, Total=5852 [2021-02-23 18:50:32,743 INFO L87 Difference]: Start difference. First operand 268 states and 273 transitions. Second operand 77 states. [2021-02-23 18:50:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:50:46,051 INFO L93 Difference]: Finished difference Result 315 states and 325 transitions. [2021-02-23 18:50:46,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2021-02-23 18:50:46,053 INFO L78 Accepts]: Start accepts. Automaton has 77 states. Word has length 257 [2021-02-23 18:50:46,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:50:46,054 INFO L225 Difference]: With dead ends: 315 [2021-02-23 18:50:46,054 INFO L226 Difference]: Without dead ends: 278 [2021-02-23 18:50:46,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4098 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=6825, Invalid=15825, Unknown=0, NotChecked=0, Total=22650 [2021-02-23 18:50:46,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-02-23 18:50:46,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 274. [2021-02-23 18:50:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2021-02-23 18:50:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 279 transitions. [2021-02-23 18:50:46,103 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 279 transitions. Word has length 257 [2021-02-23 18:50:46,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:50:46,103 INFO L480 AbstractCegarLoop]: Abstraction has 274 states and 279 transitions. [2021-02-23 18:50:46,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 77 states. [2021-02-23 18:50:46,103 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 279 transitions. [2021-02-23 18:50:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-02-23 18:50:46,105 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:50:46,105 INFO L422 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 36, 36, 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] [2021-02-23 18:50:46,106 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-02-23 18:50:46,106 INFO L428 AbstractCegarLoop]: === Iteration 39 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:50:46,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:50:46,106 INFO L82 PathProgramCache]: Analyzing trace with hash 1186960992, now seen corresponding path program 36 times [2021-02-23 18:50:46,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:50:46,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2140404020] [2021-02-23 18:50:46,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:50:46,120 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:50:46,122 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:50:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:46,267 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:46,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:46,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:46,270 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:46,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:50:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:46,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:46,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:46,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:50:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:50:46,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:46,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:50:46,563 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:50:46,564 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:50:46,586 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,588 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,631 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,632 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,683 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,684 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,733 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,735 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,782 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,783 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,828 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,829 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,869 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,870 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:46,998 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:46,999 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,038 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,081 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,081 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,122 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,170 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,171 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,224 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,225 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,279 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,280 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,333 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,334 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,386 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,387 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,438 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,548 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,549 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,667 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,668 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,728 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,729 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,794 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,795 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,861 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,862 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:47,933 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:47,934 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,007 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,008 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,084 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,085 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,162 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,163 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,244 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,245 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,343 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,344 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,526 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,614 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,615 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,704 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,705 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,797 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,896 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,897 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:48,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:48,994 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,093 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,095 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,196 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,297 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,298 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,508 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,509 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,617 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,840 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,841 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:49,955 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:49,956 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,184 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,303 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,304 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,425 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,426 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,548 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,549 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,674 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,675 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,817 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,818 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:50,946 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:50,946 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,072 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,073 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,197 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,198 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,329 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,462 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,463 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,596 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,724 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,725 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,855 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:51,856 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:51,999 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,000 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,141 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,286 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,286 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,579 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,580 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,730 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,732 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:52,884 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:52,885 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:53,043 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:53,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:53,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:53,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:53,367 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:50:53,368 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:50:53,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:50:53,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:50:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:50:53,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2140404020] [2021-02-23 18:50:53,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:50:53,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [79] imperfect sequences [] total 79 [2021-02-23 18:50:53,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261594398] [2021-02-23 18:50:53,883 INFO L460 AbstractCegarLoop]: Interpolant automaton has 79 states [2021-02-23 18:50:53,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:50:53,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-02-23 18:50:53,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1524, Invalid=4638, Unknown=0, NotChecked=0, Total=6162 [2021-02-23 18:50:53,884 INFO L87 Difference]: Start difference. First operand 274 states and 279 transitions. Second operand 79 states. [2021-02-23 18:51:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:51:03,705 INFO L93 Difference]: Finished difference Result 321 states and 331 transitions. [2021-02-23 18:51:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-02-23 18:51:03,706 INFO L78 Accepts]: Start accepts. Automaton has 79 states. Word has length 263 [2021-02-23 18:51:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:51:03,708 INFO L225 Difference]: With dead ends: 321 [2021-02-23 18:51:03,708 INFO L226 Difference]: Without dead ends: 284 [2021-02-23 18:51:03,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4323 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=7199, Invalid=16671, Unknown=0, NotChecked=0, Total=23870 [2021-02-23 18:51:03,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2021-02-23 18:51:03,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280. [2021-02-23 18:51:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2021-02-23 18:51:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 285 transitions. [2021-02-23 18:51:03,786 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 285 transitions. Word has length 263 [2021-02-23 18:51:03,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:51:03,786 INFO L480 AbstractCegarLoop]: Abstraction has 280 states and 285 transitions. [2021-02-23 18:51:03,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 79 states. [2021-02-23 18:51:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 285 transitions. [2021-02-23 18:51:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-02-23 18:51:03,788 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:51:03,788 INFO L422 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 37, 37, 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] [2021-02-23 18:51:03,788 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-02-23 18:51:03,788 INFO L428 AbstractCegarLoop]: === Iteration 40 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:51:03,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:51:03,789 INFO L82 PathProgramCache]: Analyzing trace with hash 323417724, now seen corresponding path program 37 times [2021-02-23 18:51:03,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:51:03,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516300895] [2021-02-23 18:51:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:51:03,801 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:51:03,802 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:51:03,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:03,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:03,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:03,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:03,911 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:03,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:51:03,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:03,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:03,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:03,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:51:03,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:04,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:04,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:04,091 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:51:04,092 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:51:04,103 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,104 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,127 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,128 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,154 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,182 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,183 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,214 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,215 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,243 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,244 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,278 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,279 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,316 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,317 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,355 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,356 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,395 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,396 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,436 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,437 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,479 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,480 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,523 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,524 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,570 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,570 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,617 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,672 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,673 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,730 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,731 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,791 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,792 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,851 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,852 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,912 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:04,975 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:04,976 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,041 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,103 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,104 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,168 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,169 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,234 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,302 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,302 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,384 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,385 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,454 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,455 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,598 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,673 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,673 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,750 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,752 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,828 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,829 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,910 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,911 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:05,991 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:05,992 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,074 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,075 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,158 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,158 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,243 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,244 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,331 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,420 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,420 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,617 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,827 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,828 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:06,934 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:06,935 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,148 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,149 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,259 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,260 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,367 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,368 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,479 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,479 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,591 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,592 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,717 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,718 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,832 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,833 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:07,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:07,951 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,074 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,203 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,204 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,326 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,450 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,451 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,578 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,579 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,707 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,838 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,839 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:08,971 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:08,971 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,107 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,108 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,243 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,244 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,386 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,387 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,528 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,529 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,669 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,670 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,816 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:09,964 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:09,965 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,126 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,127 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,274 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,275 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,439 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,440 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,589 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,590 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,737 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,738 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:10,889 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:10,890 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:11,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:11,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:51:11,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:51:11,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516300895] [2021-02-23 18:51:11,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:51:11,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2021-02-23 18:51:11,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490259493] [2021-02-23 18:51:11,406 INFO L460 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-02-23 18:51:11,406 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:51:11,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-02-23 18:51:11,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1603, Invalid=4877, Unknown=0, NotChecked=0, Total=6480 [2021-02-23 18:51:11,407 INFO L87 Difference]: Start difference. First operand 280 states and 285 transitions. Second operand 81 states. [2021-02-23 18:51:22,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:51:22,045 INFO L93 Difference]: Finished difference Result 327 states and 337 transitions. [2021-02-23 18:51:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2021-02-23 18:51:22,046 INFO L78 Accepts]: Start accepts. Automaton has 81 states. Word has length 269 [2021-02-23 18:51:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:51:22,048 INFO L225 Difference]: With dead ends: 327 [2021-02-23 18:51:22,048 INFO L226 Difference]: Without dead ends: 290 [2021-02-23 18:51:22,050 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4554 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=7583, Invalid=17539, Unknown=0, NotChecked=0, Total=25122 [2021-02-23 18:51:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2021-02-23 18:51:22,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2021-02-23 18:51:22,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2021-02-23 18:51:22,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 291 transitions. [2021-02-23 18:51:22,110 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 291 transitions. Word has length 269 [2021-02-23 18:51:22,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:51:22,110 INFO L480 AbstractCegarLoop]: Abstraction has 286 states and 291 transitions. [2021-02-23 18:51:22,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 81 states. [2021-02-23 18:51:22,111 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 291 transitions. [2021-02-23 18:51:22,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-02-23 18:51:22,112 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:51:22,112 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 38, 38, 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] [2021-02-23 18:51:22,113 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-02-23 18:51:22,113 INFO L428 AbstractCegarLoop]: === Iteration 41 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:51:22,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:51:22,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1039454616, now seen corresponding path program 38 times [2021-02-23 18:51:22,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:51:22,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65429121] [2021-02-23 18:51:22,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:51:22,124 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:51:22,125 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:51:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:22,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:22,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:22,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:22,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:22,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:51:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:22,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:22,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:22,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:51:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:22,527 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:22,528 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:22,529 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:51:22,530 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:51:22,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,546 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,578 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,579 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,609 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,610 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,643 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,644 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,674 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,674 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,709 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,745 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,746 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,784 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,785 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,823 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,862 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,863 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,908 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,909 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:22,995 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:22,996 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,090 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,091 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,143 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,144 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,255 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,256 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,311 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,312 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,373 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,431 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,432 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,495 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,496 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,562 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,562 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,627 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,628 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,694 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,695 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,768 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,845 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,846 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:23,922 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:23,923 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,014 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,015 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,100 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,101 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,186 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,187 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,266 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,267 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,346 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,347 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,431 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,432 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,605 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,698 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,699 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,899 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,900 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:24,992 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:24,993 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,086 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,087 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,184 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,282 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,282 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,382 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,383 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,484 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,485 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,588 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,694 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,694 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,803 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,804 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:25,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:25,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,027 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,028 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,141 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,256 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,257 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,373 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,490 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,491 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,609 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,610 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,852 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,853 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:26,978 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:26,981 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,102 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,103 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,243 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,244 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,371 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,372 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,500 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,501 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,634 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,635 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,770 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,771 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:27,908 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:27,909 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,047 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,052 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,191 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,192 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,337 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,338 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,482 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,483 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,630 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,779 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:28,928 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:28,929 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,082 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:29,083 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,238 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:29,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,396 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:29,397 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,554 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:29,555 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,728 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:29,729 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:29,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:29,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:51:30,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:51:30,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65429121] [2021-02-23 18:51:30,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:51:30,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [83] imperfect sequences [] total 83 [2021-02-23 18:51:30,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800685722] [2021-02-23 18:51:30,276 INFO L460 AbstractCegarLoop]: Interpolant automaton has 83 states [2021-02-23 18:51:30,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:51:30,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-02-23 18:51:30,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1684, Invalid=5122, Unknown=0, NotChecked=0, Total=6806 [2021-02-23 18:51:30,277 INFO L87 Difference]: Start difference. First operand 286 states and 291 transitions. Second operand 83 states. [2021-02-23 18:51:41,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:51:41,668 INFO L93 Difference]: Finished difference Result 333 states and 343 transitions. [2021-02-23 18:51:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-02-23 18:51:41,670 INFO L78 Accepts]: Start accepts. Automaton has 83 states. Word has length 275 [2021-02-23 18:51:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:51:41,672 INFO L225 Difference]: With dead ends: 333 [2021-02-23 18:51:41,673 INFO L226 Difference]: Without dead ends: 296 [2021-02-23 18:51:41,676 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4791 ImplicationChecksByTransitivity, 17.3s TimeCoverageRelationStatistics Valid=7977, Invalid=18429, Unknown=0, NotChecked=0, Total=26406 [2021-02-23 18:51:41,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-02-23 18:51:41,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 292. [2021-02-23 18:51:41,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2021-02-23 18:51:41,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 297 transitions. [2021-02-23 18:51:41,752 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 297 transitions. Word has length 275 [2021-02-23 18:51:41,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:51:41,753 INFO L480 AbstractCegarLoop]: Abstraction has 292 states and 297 transitions. [2021-02-23 18:51:41,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has 83 states. [2021-02-23 18:51:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 297 transitions. [2021-02-23 18:51:41,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-02-23 18:51:41,755 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:51:41,755 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 39, 39, 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] [2021-02-23 18:51:41,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-02-23 18:51:41,756 INFO L428 AbstractCegarLoop]: === Iteration 42 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:51:41,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:51:41,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1329535052, now seen corresponding path program 39 times [2021-02-23 18:51:41,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:51:41,757 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231429138] [2021-02-23 18:51:41,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:51:41,770 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:51:41,772 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:51:41,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:41,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:41,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:41,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:41,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:41,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:51:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:41,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:41,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:41,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:51:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:51:42,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:42,092 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:51:42,094 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:51:42,095 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:51:42,111 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,112 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,147 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,184 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,228 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,229 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,275 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,276 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,373 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,422 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,424 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,468 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,470 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,520 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,521 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,575 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,576 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,632 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,633 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,687 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,688 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,751 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,752 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,810 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,871 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,872 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,929 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,930 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:42,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:42,990 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,053 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,054 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,112 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,113 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,242 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,243 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,310 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,311 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,383 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,384 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,460 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,461 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,540 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,541 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,622 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,623 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,706 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,880 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,881 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:43,970 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:43,971 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,063 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,064 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,158 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,159 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,255 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,256 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,353 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,354 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,452 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,453 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,553 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,554 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,782 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,783 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:44,890 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:44,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,001 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,002 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,114 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,221 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,222 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,332 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,333 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,443 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,444 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,558 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,559 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,676 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,677 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,800 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,801 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:45,927 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:45,928 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,055 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,057 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,183 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,184 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,309 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,310 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,437 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,570 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,571 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,702 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,703 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,838 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,839 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:46,976 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:46,977 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,111 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,112 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,244 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,245 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,403 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,404 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,550 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,551 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,702 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,703 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,849 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,850 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:47,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:47,994 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,142 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,143 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,292 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,293 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,597 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,754 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,755 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:48,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:48,915 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,082 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,083 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,253 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,426 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,428 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,787 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,789 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:49,974 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:49,975 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:50,171 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:50,172 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:50,364 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:50,365 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:50,559 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:51:50,560 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:51:50,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:51:50,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:51:51,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:51:51,155 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231429138] [2021-02-23 18:51:51,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:51:51,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [85] imperfect sequences [] total 85 [2021-02-23 18:51:51,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071551655] [2021-02-23 18:51:51,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 85 states [2021-02-23 18:51:51,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:51:51,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-02-23 18:51:51,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1767, Invalid=5373, Unknown=0, NotChecked=0, Total=7140 [2021-02-23 18:51:51,166 INFO L87 Difference]: Start difference. First operand 292 states and 297 transitions. Second operand 85 states. [2021-02-23 18:52:03,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:03,808 INFO L93 Difference]: Finished difference Result 339 states and 349 transitions. [2021-02-23 18:52:03,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-02-23 18:52:03,810 INFO L78 Accepts]: Start accepts. Automaton has 85 states. Word has length 281 [2021-02-23 18:52:03,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:03,812 INFO L225 Difference]: With dead ends: 339 [2021-02-23 18:52:03,812 INFO L226 Difference]: Without dead ends: 302 [2021-02-23 18:52:03,814 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5034 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=8381, Invalid=19341, Unknown=0, NotChecked=0, Total=27722 [2021-02-23 18:52:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-02-23 18:52:03,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2021-02-23 18:52:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2021-02-23 18:52:03,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 303 transitions. [2021-02-23 18:52:03,901 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 303 transitions. Word has length 281 [2021-02-23 18:52:03,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:03,901 INFO L480 AbstractCegarLoop]: Abstraction has 298 states and 303 transitions. [2021-02-23 18:52:03,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 85 states. [2021-02-23 18:52:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 303 transitions. [2021-02-23 18:52:03,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-23 18:52:03,903 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:03,903 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 40, 40, 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] [2021-02-23 18:52:03,904 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-02-23 18:52:03,904 INFO L428 AbstractCegarLoop]: === Iteration 43 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:03,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:03,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1825765584, now seen corresponding path program 40 times [2021-02-23 18:52:03,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:03,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1138010642] [2021-02-23 18:52:03,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:03,919 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:52:03,920 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:04,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:04,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:04,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:04,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:04,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:04,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:04,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:04,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:52:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:04,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:04,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:04,209 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:52:04,210 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:52:04,225 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,226 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,262 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,263 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,303 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,304 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,345 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,346 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,434 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,436 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,481 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,482 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,530 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,531 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,577 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,578 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,630 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,740 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,797 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,857 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,858 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,921 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,922 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:04,986 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:04,987 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,051 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,052 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,118 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,119 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,188 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,189 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,261 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,262 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,336 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,337 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,410 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,411 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,488 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,561 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,562 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,657 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,658 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,740 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,821 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,822 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,904 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,905 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:05,987 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:05,989 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,074 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,160 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,161 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,248 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,249 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,335 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,336 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,426 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,427 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,518 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,519 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,615 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,616 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,713 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,714 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:06,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:06,915 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,028 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,029 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,146 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,147 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,254 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,255 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,375 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,376 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,503 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,504 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,621 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,622 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,742 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,743 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:07,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:07,873 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,006 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,007 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,273 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,417 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,418 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,641 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,775 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:08,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:08,915 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,057 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,058 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,211 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,212 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,366 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,367 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,520 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,521 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,685 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,686 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:09,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:09,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,010 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,011 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,341 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,342 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,516 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,694 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,695 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:10,877 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:10,878 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,060 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,060 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,240 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,241 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,437 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,624 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,625 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,809 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,810 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:11,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:11,994 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:12,186 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:12,187 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:12,380 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:12,381 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:12,568 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:12,569 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:12,764 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:12,765 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:12,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:12,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:13,106 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:13,107 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:13,293 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:13,294 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:13,505 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:13,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:13,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:13,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:14,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:52:14,161 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1138010642] [2021-02-23 18:52:14,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:14,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [87] imperfect sequences [] total 87 [2021-02-23 18:52:14,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467685028] [2021-02-23 18:52:14,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 87 states [2021-02-23 18:52:14,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:14,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-02-23 18:52:14,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1852, Invalid=5630, Unknown=0, NotChecked=0, Total=7482 [2021-02-23 18:52:14,163 INFO L87 Difference]: Start difference. First operand 298 states and 303 transitions. Second operand 87 states. [2021-02-23 18:52:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:28,762 INFO L93 Difference]: Finished difference Result 345 states and 355 transitions. [2021-02-23 18:52:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-02-23 18:52:28,764 INFO L78 Accepts]: Start accepts. Automaton has 87 states. Word has length 287 [2021-02-23 18:52:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:28,766 INFO L225 Difference]: With dead ends: 345 [2021-02-23 18:52:28,766 INFO L226 Difference]: Without dead ends: 308 [2021-02-23 18:52:28,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5283 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=8795, Invalid=20275, Unknown=0, NotChecked=0, Total=29070 [2021-02-23 18:52:28,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2021-02-23 18:52:28,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 304. [2021-02-23 18:52:28,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2021-02-23 18:52:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 309 transitions. [2021-02-23 18:52:28,854 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 309 transitions. Word has length 287 [2021-02-23 18:52:28,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:28,854 INFO L480 AbstractCegarLoop]: Abstraction has 304 states and 309 transitions. [2021-02-23 18:52:28,854 INFO L481 AbstractCegarLoop]: Interpolant automaton has 87 states. [2021-02-23 18:52:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 309 transitions. [2021-02-23 18:52:28,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-02-23 18:52:28,856 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:28,856 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 41, 41, 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] [2021-02-23 18:52:28,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-02-23 18:52:28,856 INFO L428 AbstractCegarLoop]: === Iteration 44 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:28,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:28,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1719846124, now seen corresponding path program 41 times [2021-02-23 18:52:28,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:28,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366692223] [2021-02-23 18:52:28,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:28,872 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:52:28,873 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:28,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:28,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:28,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:28,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:28,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:29,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:29,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:29,027 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:29,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:52:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:29,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:29,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:29,208 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:52:29,209 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:52:29,225 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,226 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,259 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,260 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,291 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,292 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,331 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,366 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,367 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,411 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,412 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,458 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,507 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,508 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,557 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,558 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,611 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,612 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,668 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,669 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,728 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,729 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,790 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,792 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,856 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,857 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,918 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,919 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:29,980 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:29,981 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,051 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,052 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,119 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,121 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,191 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,192 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,263 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,264 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,336 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,337 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,413 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,414 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,496 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,497 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,581 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,668 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,669 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,781 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,865 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,866 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:30,953 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:30,955 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,134 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,135 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,220 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,221 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,308 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,309 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,491 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,492 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,586 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,586 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,682 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,683 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,782 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,783 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,885 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,886 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:31,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:31,990 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,097 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,098 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,206 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,207 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,319 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,549 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,550 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,665 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,666 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,789 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,790 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:32,924 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:32,925 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,062 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,063 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,200 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,201 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,345 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,346 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,505 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,647 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,648 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,791 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,792 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:33,930 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:33,931 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,081 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,083 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,219 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,220 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,341 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,342 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,486 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,487 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,646 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,647 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,808 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,809 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:34,978 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:34,979 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:35,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:35,155 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:35,328 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:35,329 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:35,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:35,507 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:35,684 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:35,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:35,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:35,864 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:36,044 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:36,045 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:36,231 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:36,232 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:36,440 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:36,442 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:36,637 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:36,638 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:36,829 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:36,830 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:37,024 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:37,026 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:37,221 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:37,222 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:37,424 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:37,425 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:37,628 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:37,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:37,833 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:37,834 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:38,047 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:38,049 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:38,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:38,251 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:38,465 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:38,466 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:38,666 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:38,667 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:38,829 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:38,830 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:39,038 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:39,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:39,261 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:39,262 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:39,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:39,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:52:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:52:39,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366692223] [2021-02-23 18:52:39,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:52:39,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [89] imperfect sequences [] total 89 [2021-02-23 18:52:39,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720683215] [2021-02-23 18:52:39,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 89 states [2021-02-23 18:52:39,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:52:39,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-02-23 18:52:39,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1939, Invalid=5893, Unknown=0, NotChecked=0, Total=7832 [2021-02-23 18:52:39,940 INFO L87 Difference]: Start difference. First operand 304 states and 309 transitions. Second operand 89 states. [2021-02-23 18:52:56,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:52:56,001 INFO L93 Difference]: Finished difference Result 351 states and 361 transitions. [2021-02-23 18:52:56,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2021-02-23 18:52:56,003 INFO L78 Accepts]: Start accepts. Automaton has 89 states. Word has length 293 [2021-02-23 18:52:56,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:52:56,005 INFO L225 Difference]: With dead ends: 351 [2021-02-23 18:52:56,005 INFO L226 Difference]: Without dead ends: 314 [2021-02-23 18:52:56,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5538 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=9219, Invalid=21231, Unknown=0, NotChecked=0, Total=30450 [2021-02-23 18:52:56,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-02-23 18:52:56,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 310. [2021-02-23 18:52:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2021-02-23 18:52:56,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 315 transitions. [2021-02-23 18:52:56,074 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 315 transitions. Word has length 293 [2021-02-23 18:52:56,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:52:56,075 INFO L480 AbstractCegarLoop]: Abstraction has 310 states and 315 transitions. [2021-02-23 18:52:56,075 INFO L481 AbstractCegarLoop]: Interpolant automaton has 89 states. [2021-02-23 18:52:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 315 transitions. [2021-02-23 18:52:56,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2021-02-23 18:52:56,076 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:52:56,077 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 42, 42, 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] [2021-02-23 18:52:56,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-02-23 18:52:56,077 INFO L428 AbstractCegarLoop]: === Iteration 45 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:52:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:52:56,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1633160200, now seen corresponding path program 42 times [2021-02-23 18:52:56,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:52:56,078 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [995016041] [2021-02-23 18:52:56,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:52:56,092 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:52:56,094 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:52:56,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:56,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:56,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:56,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:56,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:56,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:52:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:56,263 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:56,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:56,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:52:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:52:56,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:52:56,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:52:56,432 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:52:56,433 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:52:56,455 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,457 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,507 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,508 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,560 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,561 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,643 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,645 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,762 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,763 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,824 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,825 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,878 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,880 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:56,946 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:56,948 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,003 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,004 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,068 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,070 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,141 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,214 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,215 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,364 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,365 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,435 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,436 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,508 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,509 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,582 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,583 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,661 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,662 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,744 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,744 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,827 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,828 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:57,912 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:57,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,001 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,002 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,091 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,092 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,181 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,182 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,274 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,370 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,371 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,474 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,475 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,582 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,690 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,691 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,797 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,798 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:58,907 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:58,908 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,022 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,024 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,141 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,260 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,261 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,381 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,382 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,509 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,510 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,637 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,769 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:52:59,914 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:52:59,915 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,038 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,173 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,310 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,311 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,453 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,454 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,595 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,738 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,739 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:00,885 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:00,886 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,032 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,178 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,179 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,326 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,478 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,479 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,630 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,631 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,784 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,785 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:01,944 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:01,945 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,110 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,111 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,278 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,279 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,445 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,446 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,775 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:02,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:02,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:03,141 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:03,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:03,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:03,319 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:03,480 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:03,481 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:03,663 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:03,664 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:03,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:03,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:04,026 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:04,027 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:04,216 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:04,217 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:04,408 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:04,409 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:04,600 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:04,601 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:04,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:04,798 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:05,003 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:05,004 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:05,210 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:05,211 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:05,414 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:05,415 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:05,622 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:05,623 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:05,836 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:05,837 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:06,054 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:06,055 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:06,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:06,275 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:06,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:06,507 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:06,717 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:06,719 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:06,928 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:06,929 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:07,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:07,157 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:07,391 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:07,392 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:07,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:07,620 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:07,852 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:07,853 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:08,094 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:08,095 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:08,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:08,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:53:08,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:53:08,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [995016041] [2021-02-23 18:53:08,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:53:08,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [91] imperfect sequences [] total 91 [2021-02-23 18:53:08,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63917350] [2021-02-23 18:53:08,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 91 states [2021-02-23 18:53:08,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:53:08,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-02-23 18:53:08,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2028, Invalid=6162, Unknown=0, NotChecked=0, Total=8190 [2021-02-23 18:53:08,814 INFO L87 Difference]: Start difference. First operand 310 states and 315 transitions. Second operand 91 states. [2021-02-23 18:53:25,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:53:25,697 INFO L93 Difference]: Finished difference Result 357 states and 367 transitions. [2021-02-23 18:53:25,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2021-02-23 18:53:25,699 INFO L78 Accepts]: Start accepts. Automaton has 91 states. Word has length 299 [2021-02-23 18:53:25,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:53:25,702 INFO L225 Difference]: With dead ends: 357 [2021-02-23 18:53:25,702 INFO L226 Difference]: Without dead ends: 320 [2021-02-23 18:53:25,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 177 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5799 ImplicationChecksByTransitivity, 26.3s TimeCoverageRelationStatistics Valid=9653, Invalid=22209, Unknown=0, NotChecked=0, Total=31862 [2021-02-23 18:53:25,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-02-23 18:53:25,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 316. [2021-02-23 18:53:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 316 states. [2021-02-23 18:53:25,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 321 transitions. [2021-02-23 18:53:25,786 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 321 transitions. Word has length 299 [2021-02-23 18:53:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:53:25,786 INFO L480 AbstractCegarLoop]: Abstraction has 316 states and 321 transitions. [2021-02-23 18:53:25,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 91 states. [2021-02-23 18:53:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 321 transitions. [2021-02-23 18:53:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-02-23 18:53:25,788 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:53:25,789 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 43, 43, 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] [2021-02-23 18:53:25,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-02-23 18:53:25,789 INFO L428 AbstractCegarLoop]: === Iteration 46 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:53:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:53:25,789 INFO L82 PathProgramCache]: Analyzing trace with hash -871723484, now seen corresponding path program 43 times [2021-02-23 18:53:25,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:53:25,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718506631] [2021-02-23 18:53:25,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:53:25,803 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:53:25,805 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:53:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:25,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:25,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:25,914 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:25,915 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:25,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:53:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:25,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:25,950 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:25,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:53:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:26,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:26,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:26,154 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:53:26,155 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:53:26,172 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,173 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,207 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,208 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,249 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,250 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,298 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,299 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,350 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,352 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,459 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,460 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,514 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,515 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,566 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,567 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,617 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,671 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,672 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,730 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,788 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,788 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,849 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,850 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,912 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:26,979 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:26,980 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,046 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,047 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,120 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,121 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,201 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,202 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,289 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,369 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,370 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,454 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,455 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,536 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,537 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,620 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,622 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,720 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,812 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,813 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,904 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:27,994 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:27,995 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,089 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,090 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,190 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,191 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,491 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,492 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,703 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,705 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,818 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,819 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:28,930 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:28,931 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,071 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,072 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,206 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,208 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,341 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,342 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,479 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,481 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,614 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,616 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,758 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,759 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:29,893 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:29,894 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,016 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,017 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,139 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,140 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,268 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,269 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,534 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,535 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,672 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,673 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,809 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,810 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:30,945 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:30,946 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,089 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,090 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,235 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,237 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,379 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,380 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,527 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,528 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,680 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,681 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:31,833 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:31,834 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,006 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,007 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,168 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,169 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,358 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,360 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,541 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,542 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,727 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,728 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:32,902 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:32,903 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,064 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,065 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,228 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,229 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,579 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,580 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,753 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,754 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:33,931 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:33,932 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:34,119 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:34,120 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:34,309 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:34,310 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:34,495 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:34,496 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:34,682 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:34,683 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:34,874 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:34,875 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:35,079 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:35,080 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:35,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:35,292 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:35,521 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:35,522 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:35,745 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:35,746 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:35,973 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:35,974 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:36,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:36,201 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:36,433 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:36,435 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:36,682 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:36,684 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:36,911 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:36,913 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:37,148 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:37,151 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:37,368 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:37,369 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:37,583 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:37,584 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:37,804 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:37,805 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:53:38,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:53:38,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718506631] [2021-02-23 18:53:38,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:53:38,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [93] imperfect sequences [] total 93 [2021-02-23 18:53:38,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617252711] [2021-02-23 18:53:38,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 93 states [2021-02-23 18:53:38,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:53:38,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-02-23 18:53:38,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2119, Invalid=6437, Unknown=0, NotChecked=0, Total=8556 [2021-02-23 18:53:38,306 INFO L87 Difference]: Start difference. First operand 316 states and 321 transitions. Second operand 93 states. [2021-02-23 18:53:57,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:53:57,161 INFO L93 Difference]: Finished difference Result 363 states and 373 transitions. [2021-02-23 18:53:57,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2021-02-23 18:53:57,163 INFO L78 Accepts]: Start accepts. Automaton has 93 states. Word has length 305 [2021-02-23 18:53:57,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:53:57,164 INFO L225 Difference]: With dead ends: 363 [2021-02-23 18:53:57,164 INFO L226 Difference]: Without dead ends: 326 [2021-02-23 18:53:57,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6066 ImplicationChecksByTransitivity, 28.6s TimeCoverageRelationStatistics Valid=10097, Invalid=23209, Unknown=0, NotChecked=0, Total=33306 [2021-02-23 18:53:57,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-02-23 18:53:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2021-02-23 18:53:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2021-02-23 18:53:57,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 327 transitions. [2021-02-23 18:53:57,259 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 327 transitions. Word has length 305 [2021-02-23 18:53:57,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:53:57,259 INFO L480 AbstractCegarLoop]: Abstraction has 322 states and 327 transitions. [2021-02-23 18:53:57,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has 93 states. [2021-02-23 18:53:57,260 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 327 transitions. [2021-02-23 18:53:57,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-02-23 18:53:57,261 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:53:57,262 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 44, 44, 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] [2021-02-23 18:53:57,262 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-02-23 18:53:57,262 INFO L428 AbstractCegarLoop]: === Iteration 47 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:53:57,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:53:57,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1669199040, now seen corresponding path program 44 times [2021-02-23 18:53:57,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:53:57,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086136689] [2021-02-23 18:53:57,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:53:57,291 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:53:57,292 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:53:57,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:57,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:57,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:57,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:57,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:57,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:53:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:57,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:57,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:57,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:53:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:53:57,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:53:57,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:53:57,678 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:53:57,679 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:53:57,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,740 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,742 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,836 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,837 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,879 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,881 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,928 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,929 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:57,978 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:57,979 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,031 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,085 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,087 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,141 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,264 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,331 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,332 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,400 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,471 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,472 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,544 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,545 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,620 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,779 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,862 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,863 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:58,948 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:58,950 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,038 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,127 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,129 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,230 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,231 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,335 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,336 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,576 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,577 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,683 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,685 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,772 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,773 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,884 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,885 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:53:59,981 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:53:59,982 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,075 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,076 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,179 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,180 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,305 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,306 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,431 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,433 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,563 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,564 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,699 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,700 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,839 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,840 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:00,980 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:00,981 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,125 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,126 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,266 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,267 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,418 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,419 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,571 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,572 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,724 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,725 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:01,879 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:01,880 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,043 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,213 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,214 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,384 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,385 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,556 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,558 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,732 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,733 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:02,906 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:02,907 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:03,103 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:03,105 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:03,284 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:03,286 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:03,469 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:03,471 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:03,656 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:03,657 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:03,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:03,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:04,036 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:04,038 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:04,224 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:04,226 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:04,421 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:04,423 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:04,620 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:04,622 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:04,817 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:04,818 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:05,013 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:05,015 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:05,213 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:05,214 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:05,418 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:05,419 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:05,627 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:05,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:05,845 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:05,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:06,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:06,059 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:06,269 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:06,270 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:06,485 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:06,486 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:06,728 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:06,729 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:06,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:06,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:07,175 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:07,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:07,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:07,408 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:07,639 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:07,641 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:07,877 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:07,878 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:08,114 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:08,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:08,356 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:08,357 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:08,605 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:08,606 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:08,853 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:08,854 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:09,105 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:09,107 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:09,355 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:09,356 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:09,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:09,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:09,864 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:09,865 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:10,124 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:10,125 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:10,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:10,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:10,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:10,660 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:10,930 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:10,931 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:11,190 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:11,191 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:11,449 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:11,450 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:11,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:11,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:54:12,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:54:12,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086136689] [2021-02-23 18:54:12,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:54:12,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [95] imperfect sequences [] total 95 [2021-02-23 18:54:12,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973056063] [2021-02-23 18:54:12,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 95 states [2021-02-23 18:54:12,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:54:12,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-02-23 18:54:12,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2212, Invalid=6718, Unknown=0, NotChecked=0, Total=8930 [2021-02-23 18:54:12,238 INFO L87 Difference]: Start difference. First operand 322 states and 327 transitions. Second operand 95 states. [2021-02-23 18:54:32,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:54:32,592 INFO L93 Difference]: Finished difference Result 369 states and 379 transitions. [2021-02-23 18:54:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-02-23 18:54:32,594 INFO L78 Accepts]: Start accepts. Automaton has 95 states. Word has length 311 [2021-02-23 18:54:32,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:54:32,596 INFO L225 Difference]: With dead ends: 369 [2021-02-23 18:54:32,596 INFO L226 Difference]: Without dead ends: 332 [2021-02-23 18:54:32,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6339 ImplicationChecksByTransitivity, 32.2s TimeCoverageRelationStatistics Valid=10551, Invalid=24231, Unknown=0, NotChecked=0, Total=34782 [2021-02-23 18:54:32,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-02-23 18:54:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 328. [2021-02-23 18:54:32,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2021-02-23 18:54:32,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 333 transitions. [2021-02-23 18:54:32,684 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 333 transitions. Word has length 311 [2021-02-23 18:54:32,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:54:32,684 INFO L480 AbstractCegarLoop]: Abstraction has 328 states and 333 transitions. [2021-02-23 18:54:32,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 95 states. [2021-02-23 18:54:32,684 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 333 transitions. [2021-02-23 18:54:32,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2021-02-23 18:54:32,686 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:54:32,686 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 45, 45, 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] [2021-02-23 18:54:32,686 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-02-23 18:54:32,686 INFO L428 AbstractCegarLoop]: === Iteration 48 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:54:32,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:54:32,687 INFO L82 PathProgramCache]: Analyzing trace with hash 735462236, now seen corresponding path program 45 times [2021-02-23 18:54:32,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:54:32,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159720784] [2021-02-23 18:54:32,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:54:32,700 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:54:32,701 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:54:32,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:54:32,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:32,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:54:32,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:32,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:54:32,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:54:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:54:32,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:32,870 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:54:32,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:54:32,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:54:33,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:33,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:54:33,047 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:54:33,049 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:54:33,070 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,071 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,175 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,176 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,232 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,234 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,286 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,287 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,345 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,346 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,407 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,470 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,472 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,540 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,542 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,612 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,614 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,679 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,680 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,750 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,751 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,815 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,882 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,883 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:33,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:33,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,023 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,024 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,095 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,097 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,173 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,252 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,335 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,337 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,416 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,417 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,504 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,594 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,595 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,685 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,686 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,777 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,778 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,873 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,875 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:34,973 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:34,974 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,075 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,302 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,303 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,410 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,411 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,524 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,525 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,637 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,753 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,754 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,871 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,872 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:35,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:35,994 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,116 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,117 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,241 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,243 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,368 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,369 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,497 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,499 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,629 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,630 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,761 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,762 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:36,898 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:36,899 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,181 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,182 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,324 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,325 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,469 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,470 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,619 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,620 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,768 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:37,919 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:37,920 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,075 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,077 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,231 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,233 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,571 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,573 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,734 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,735 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:38,901 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:38,903 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,071 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,072 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,236 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,405 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,406 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,582 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,583 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,759 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,761 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:39,943 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:39,944 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:40,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:40,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:40,304 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:40,305 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:40,494 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:40,495 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:40,690 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:40,691 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:40,899 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:40,901 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:41,094 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:41,095 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:41,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:41,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:41,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:41,488 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:41,701 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:41,702 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:41,904 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:41,905 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:42,111 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:42,112 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:42,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:42,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:42,536 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:42,538 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:42,764 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:42,765 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:42,975 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:42,976 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:43,193 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:43,194 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:43,419 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:43,420 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:43,640 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:43,641 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:43,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:43,864 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:44,091 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:44,092 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:44,321 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:44,322 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:44,559 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:44,560 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:44,801 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:44,802 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:45,054 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:45,055 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:45,298 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:45,300 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:45,568 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:45,569 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:45,813 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:45,815 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:46,062 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:46,063 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:46,325 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:54:46,327 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:54:46,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:54:46,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:54:47,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:54:47,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1159720784] [2021-02-23 18:54:47,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:54:47,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [97] imperfect sequences [] total 97 [2021-02-23 18:54:47,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66577851] [2021-02-23 18:54:47,125 INFO L460 AbstractCegarLoop]: Interpolant automaton has 97 states [2021-02-23 18:54:47,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:54:47,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-02-23 18:54:47,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2307, Invalid=7005, Unknown=0, NotChecked=0, Total=9312 [2021-02-23 18:54:47,126 INFO L87 Difference]: Start difference. First operand 328 states and 333 transitions. Second operand 97 states. [2021-02-23 18:55:08,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:55:08,368 INFO L93 Difference]: Finished difference Result 375 states and 385 transitions. [2021-02-23 18:55:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2021-02-23 18:55:08,371 INFO L78 Accepts]: Start accepts. Automaton has 97 states. Word has length 317 [2021-02-23 18:55:08,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:55:08,373 INFO L225 Difference]: With dead ends: 375 [2021-02-23 18:55:08,373 INFO L226 Difference]: Without dead ends: 338 [2021-02-23 18:55:08,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 189 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6618 ImplicationChecksByTransitivity, 31.4s TimeCoverageRelationStatistics Valid=11015, Invalid=25275, Unknown=0, NotChecked=0, Total=36290 [2021-02-23 18:55:08,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2021-02-23 18:55:08,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 334. [2021-02-23 18:55:08,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 334 states. [2021-02-23 18:55:08,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 339 transitions. [2021-02-23 18:55:08,460 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 339 transitions. Word has length 317 [2021-02-23 18:55:08,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:55:08,461 INFO L480 AbstractCegarLoop]: Abstraction has 334 states and 339 transitions. [2021-02-23 18:55:08,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has 97 states. [2021-02-23 18:55:08,461 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 339 transitions. [2021-02-23 18:55:08,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2021-02-23 18:55:08,463 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:55:08,463 INFO L422 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 46, 46, 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] [2021-02-23 18:55:08,463 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-02-23 18:55:08,463 INFO L428 AbstractCegarLoop]: === Iteration 49 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:55:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:55:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 307164792, now seen corresponding path program 46 times [2021-02-23 18:55:08,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:55:08,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [996789778] [2021-02-23 18:55:08,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:55:08,477 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:55:08,478 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:55:08,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:08,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:08,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:08,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:08,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:08,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:55:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:08,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:08,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:08,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:55:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:08,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:08,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:08,823 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:55:08,824 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:55:08,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:08,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:08,891 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:08,892 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:08,938 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:08,940 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:08,989 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:08,991 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,098 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,099 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,157 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,158 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,218 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,219 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,279 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,280 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,344 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,345 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,409 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,410 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,477 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,478 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,549 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,551 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,625 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,627 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,701 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,702 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,781 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,866 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:09,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:09,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,037 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,039 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,127 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,129 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,218 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,220 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,311 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,312 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,407 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,408 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,504 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,505 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,602 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,603 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,709 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,813 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:10,921 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:10,922 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,031 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,147 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,264 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,379 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,381 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,502 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,503 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,625 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,626 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,752 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,754 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:11,895 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:11,897 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,028 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,030 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,182 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,183 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,321 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,461 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,462 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,602 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,604 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,747 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,748 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:12,891 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:12,893 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,190 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,191 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,346 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,348 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,504 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,666 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,667 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:13,830 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:13,832 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,001 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,002 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,168 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,170 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,512 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,513 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,710 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,712 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:14,915 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:14,917 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:15,117 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:15,119 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:15,306 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:15,307 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:15,475 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:15,476 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:15,674 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:15,676 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:15,884 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:15,885 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:16,096 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:16,097 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:16,316 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:16,317 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:16,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:16,546 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:16,778 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:16,780 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:17,016 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:17,018 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:17,261 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:17,262 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:17,510 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:17,512 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:17,760 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:17,762 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:18,010 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:18,011 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:18,262 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:18,263 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:18,514 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:18,516 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:18,774 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:18,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:19,035 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:19,037 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:19,300 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:19,302 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:19,561 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:19,563 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:19,839 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:19,841 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:20,102 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:20,104 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:20,374 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:20,375 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:20,623 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:20,625 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:20,884 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:20,886 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:21,167 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:21,169 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:21,450 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:21,452 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:21,737 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:21,739 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:22,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:22,031 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:22,320 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:22,321 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:22,622 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:22,623 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:22,930 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:22,932 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:23,239 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:23,240 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:23,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:23,547 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:23,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:23,874 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:24,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:24,197 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:24,508 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:24,510 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:24,815 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:24,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:25,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:25,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:55:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:55:25,661 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [996789778] [2021-02-23 18:55:25,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:55:25,662 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [99] imperfect sequences [] total 99 [2021-02-23 18:55:25,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608980898] [2021-02-23 18:55:25,662 INFO L460 AbstractCegarLoop]: Interpolant automaton has 99 states [2021-02-23 18:55:25,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:55:25,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-02-23 18:55:25,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2404, Invalid=7298, Unknown=0, NotChecked=0, Total=9702 [2021-02-23 18:55:25,663 INFO L87 Difference]: Start difference. First operand 334 states and 339 transitions. Second operand 99 states. [2021-02-23 18:55:51,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:55:51,341 INFO L93 Difference]: Finished difference Result 381 states and 391 transitions. [2021-02-23 18:55:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2021-02-23 18:55:51,344 INFO L78 Accepts]: Start accepts. Automaton has 99 states. Word has length 323 [2021-02-23 18:55:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:55:51,347 INFO L225 Difference]: With dead ends: 381 [2021-02-23 18:55:51,347 INFO L226 Difference]: Without dead ends: 344 [2021-02-23 18:55:51,350 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6903 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=11489, Invalid=26341, Unknown=0, NotChecked=0, Total=37830 [2021-02-23 18:55:51,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-02-23 18:55:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 340. [2021-02-23 18:55:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2021-02-23 18:55:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 345 transitions. [2021-02-23 18:55:51,451 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 345 transitions. Word has length 323 [2021-02-23 18:55:51,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:55:51,452 INFO L480 AbstractCegarLoop]: Abstraction has 340 states and 345 transitions. [2021-02-23 18:55:51,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has 99 states. [2021-02-23 18:55:51,452 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 345 transitions. [2021-02-23 18:55:51,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-02-23 18:55:51,454 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:55:51,454 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 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] [2021-02-23 18:55:51,455 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-02-23 18:55:51,455 INFO L428 AbstractCegarLoop]: === Iteration 50 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:55:51,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:55:51,455 INFO L82 PathProgramCache]: Analyzing trace with hash 56878228, now seen corresponding path program 47 times [2021-02-23 18:55:51,455 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:55:51,455 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185124091] [2021-02-23 18:55:51,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:55:51,471 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:55:51,473 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:55:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:51,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:51,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:51,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:51,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:51,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:55:51,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:51,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:51,685 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:51,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:55:51,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:55:51,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:55:51,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:55:51,967 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:55:51,969 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:55:51,997 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:51,998 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,065 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,066 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,126 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,127 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,184 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,185 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,242 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,243 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,304 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,306 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,374 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,376 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,450 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,451 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,525 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,526 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,600 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,601 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,678 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,679 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,758 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,760 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,845 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,847 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:52,939 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:52,941 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,031 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,033 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,129 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,130 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,226 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,331 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,333 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,436 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,438 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,541 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,542 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,653 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,655 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,761 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,763 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,875 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,877 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:53,995 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:53,996 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,115 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,238 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,239 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,358 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,360 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,490 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,492 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,623 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,624 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,753 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,754 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:54,875 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:54,877 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,007 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,009 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,146 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,287 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,288 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,428 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,429 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,579 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,580 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,739 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:55,916 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:55,917 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,077 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,078 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,269 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,271 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,448 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,620 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,621 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,797 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,799 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:56,974 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:56,976 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:57,147 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:57,149 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:57,329 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:57,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:57,519 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:57,521 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:57,706 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:57,708 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:57,897 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:57,899 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:58,089 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:58,091 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:58,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:58,291 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:58,498 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:58,499 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:58,701 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:58,702 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:58,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:58,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:59,121 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:59,123 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:59,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:59,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:59,553 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:59,555 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:59,772 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:55:59,774 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:55:59,999 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:00,000 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:00,237 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:00,239 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:00,468 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:00,470 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:00,691 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:00,693 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:00,903 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:00,904 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:01,122 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:01,124 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:01,361 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:01,363 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:01,608 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:01,610 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:01,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:01,873 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:02,133 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:02,135 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:02,391 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:02,393 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:02,657 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:02,659 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:02,928 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:02,930 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:03,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:03,201 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:03,467 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:03,469 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:03,739 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:03,740 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:04,008 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:04,010 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:04,300 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:04,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:04,586 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:04,588 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:04,863 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:04,865 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:05,147 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:05,149 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:05,432 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:05,434 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:05,732 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:05,734 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:06,011 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:06,012 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:06,281 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:06,283 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:06,588 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:06,590 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:06,899 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:06,900 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:07,200 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:07,202 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:07,517 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:07,519 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:07,826 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:07,828 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:08,148 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:08,150 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:08,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:08,491 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:08,819 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:08,821 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:09,156 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:09,158 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:09,496 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:09,498 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:09,839 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:09,840 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:10,185 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:10,187 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:10,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:10,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:56:11,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:56:11,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185124091] [2021-02-23 18:56:11,118 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:56:11,118 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [101] imperfect sequences [] total 101 [2021-02-23 18:56:11,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821219862] [2021-02-23 18:56:11,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 101 states [2021-02-23 18:56:11,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:56:11,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-02-23 18:56:11,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2503, Invalid=7597, Unknown=0, NotChecked=0, Total=10100 [2021-02-23 18:56:11,120 INFO L87 Difference]: Start difference. First operand 340 states and 345 transitions. Second operand 101 states. [2021-02-23 18:56:37,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:56:37,447 INFO L93 Difference]: Finished difference Result 387 states and 397 transitions. [2021-02-23 18:56:37,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 150 states. [2021-02-23 18:56:37,451 INFO L78 Accepts]: Start accepts. Automaton has 101 states. Word has length 329 [2021-02-23 18:56:37,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:56:37,453 INFO L225 Difference]: With dead ends: 387 [2021-02-23 18:56:37,453 INFO L226 Difference]: Without dead ends: 350 [2021-02-23 18:56:37,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 197 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7194 ImplicationChecksByTransitivity, 42.0s TimeCoverageRelationStatistics Valid=11973, Invalid=27429, Unknown=0, NotChecked=0, Total=39402 [2021-02-23 18:56:37,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-02-23 18:56:37,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2021-02-23 18:56:37,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2021-02-23 18:56:37,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 351 transitions. [2021-02-23 18:56:37,551 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 351 transitions. Word has length 329 [2021-02-23 18:56:37,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:56:37,552 INFO L480 AbstractCegarLoop]: Abstraction has 346 states and 351 transitions. [2021-02-23 18:56:37,552 INFO L481 AbstractCegarLoop]: Interpolant automaton has 101 states. [2021-02-23 18:56:37,552 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 351 transitions. [2021-02-23 18:56:37,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-02-23 18:56:37,568 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:56:37,569 INFO L422 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 48, 48, 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] [2021-02-23 18:56:37,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-02-23 18:56:37,569 INFO L428 AbstractCegarLoop]: === Iteration 51 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:56:37,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:56:37,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1447244368, now seen corresponding path program 48 times [2021-02-23 18:56:37,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:56:37,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236079254] [2021-02-23 18:56:37,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:56:37,584 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:56:37,585 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:56:37,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:56:37,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:37,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:56:37,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:37,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:56:37,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:56:37,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:56:37,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:37,737 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:56:37,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:56:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:56:37,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:37,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:56:37,922 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:56:37,924 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:56:37,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:37,953 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,020 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,022 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,090 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,092 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,169 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,171 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,247 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,249 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,337 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,339 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,427 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,429 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,515 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,517 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,592 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,593 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,673 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,674 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,755 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,757 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,838 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,840 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:38,922 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:38,923 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,007 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,008 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,099 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,101 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,193 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,195 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,290 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,292 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,389 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,391 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,493 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,495 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,601 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,603 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,711 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,713 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,822 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,824 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:39,937 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:39,939 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,075 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,077 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,199 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,200 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,321 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,322 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,447 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,578 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,580 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,704 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,705 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:40,847 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:40,849 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,006 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,008 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,178 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,180 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,333 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,334 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,492 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,494 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,651 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,653 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,810 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,812 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:41,963 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:41,965 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,117 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,118 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,282 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,284 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,446 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,448 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,617 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,779 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,780 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:42,951 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:42,953 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:43,142 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:43,143 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:43,318 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:43,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:43,494 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:43,495 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:43,685 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:43,686 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:43,878 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:43,880 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:44,064 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:44,066 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:44,271 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:44,273 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:44,453 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:44,455 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:44,656 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:44,658 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:44,846 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:44,848 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:45,058 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:45,060 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:45,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:45,275 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:45,489 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:45,491 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:45,715 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:45,716 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:45,931 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:45,933 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:46,144 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:46,146 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:46,360 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:46,361 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:46,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:46,581 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:46,801 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:46,802 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:47,022 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:47,023 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:47,250 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:47,252 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:47,503 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:47,504 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:47,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:47,768 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:48,033 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:48,034 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:48,287 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:48,289 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:48,545 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:48,547 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:48,815 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:48,817 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:49,065 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:49,066 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:49,332 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:49,334 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:49,608 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:49,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:49,869 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:49,871 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:50,136 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:50,137 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:50,406 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:50,409 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:50,686 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:50,687 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:50,965 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:50,967 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:51,252 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:51,254 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:51,535 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:51,537 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:51,811 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:51,813 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:52,098 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:52,100 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:52,390 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:52,392 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:52,708 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:52,710 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:52,991 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:52,993 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:53,275 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:53,276 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:53,566 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:53,568 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:53,867 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:53,869 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:54,172 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:54,174 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:54,478 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:54,480 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:54,791 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:54,793 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:55,119 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:55,121 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:55,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:55,459 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:55,796 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:55,797 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:56,115 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:56,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:56,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:56,445 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:56,794 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:56:56,796 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:56:57,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:56:57,134 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:56:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:56:57,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236079254] [2021-02-23 18:56:57,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:56:57,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [103] imperfect sequences [] total 103 [2021-02-23 18:56:57,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419633112] [2021-02-23 18:56:57,755 INFO L460 AbstractCegarLoop]: Interpolant automaton has 103 states [2021-02-23 18:56:57,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:56:57,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-02-23 18:56:57,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2604, Invalid=7902, Unknown=0, NotChecked=0, Total=10506 [2021-02-23 18:56:57,756 INFO L87 Difference]: Start difference. First operand 346 states and 351 transitions. Second operand 103 states. [2021-02-23 18:56:58,960 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-23 18:57:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:57:26,390 INFO L93 Difference]: Finished difference Result 393 states and 403 transitions. [2021-02-23 18:57:26,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-02-23 18:57:26,394 INFO L78 Accepts]: Start accepts. Automaton has 103 states. Word has length 335 [2021-02-23 18:57:26,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:57:26,396 INFO L225 Difference]: With dead ends: 393 [2021-02-23 18:57:26,396 INFO L226 Difference]: Without dead ends: 356 [2021-02-23 18:57:26,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7491 ImplicationChecksByTransitivity, 44.7s TimeCoverageRelationStatistics Valid=12467, Invalid=28539, Unknown=0, NotChecked=0, Total=41006 [2021-02-23 18:57:26,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-02-23 18:57:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 352. [2021-02-23 18:57:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352 states. [2021-02-23 18:57:26,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 357 transitions. [2021-02-23 18:57:26,493 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 357 transitions. Word has length 335 [2021-02-23 18:57:26,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:57:26,493 INFO L480 AbstractCegarLoop]: Abstraction has 352 states and 357 transitions. [2021-02-23 18:57:26,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 103 states. [2021-02-23 18:57:26,494 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 357 transitions. [2021-02-23 18:57:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2021-02-23 18:57:26,495 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:57:26,496 INFO L422 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 49, 49, 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] [2021-02-23 18:57:26,496 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-02-23 18:57:26,496 INFO L428 AbstractCegarLoop]: === Iteration 52 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:57:26,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:57:26,496 INFO L82 PathProgramCache]: Analyzing trace with hash -2093911604, now seen corresponding path program 49 times [2021-02-23 18:57:26,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:57:26,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409620452] [2021-02-23 18:57:26,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:57:26,511 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:57:26,512 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:57:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:57:26,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:57:26,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:57:26,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:57:26,628 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:57:26,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:57:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:57:26,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:57:26,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:57:26,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:57:26,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:57:26,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:57:26,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:57:26,867 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:57:26,869 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:57:26,900 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:26,902 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:26,966 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:26,968 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,035 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,036 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,105 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,107 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,187 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,189 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,273 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,274 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,357 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,359 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,442 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,444 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,529 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,531 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,623 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,625 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,715 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,717 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,812 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,813 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:27,909 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:27,911 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,011 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,013 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,117 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,119 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,226 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,227 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,347 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,348 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,463 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,464 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,581 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,700 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,701 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,823 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,845 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:28,967 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:28,971 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,097 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,098 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,226 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,228 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,360 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,361 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,498 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,499 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,644 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,646 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,789 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,790 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:29,939 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:29,940 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,092 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,094 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,244 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,246 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,401 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,403 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,560 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,562 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,723 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,725 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:30,889 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:30,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,067 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,068 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,237 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,239 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,416 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,418 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,599 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,601 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,777 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,779 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:31,973 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:31,974 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:32,155 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:32,157 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:32,338 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:32,339 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:32,526 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:32,528 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:32,726 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:32,728 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:32,934 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:32,936 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:33,146 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:33,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:33,362 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:33,364 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:33,595 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:33,597 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:33,820 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:33,821 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:34,041 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:34,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:34,266 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:34,268 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:34,486 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:34,488 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:34,719 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:34,721 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:34,938 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:34,939 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:35,165 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:35,167 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:35,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:35,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:35,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:35,638 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:35,878 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:35,880 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:36,118 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:36,120 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:36,372 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:36,374 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:36,627 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:36,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:36,889 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:36,891 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:37,144 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:37,146 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:37,399 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:37,401 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:37,661 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:37,663 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:37,937 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:37,939 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:38,200 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:38,201 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:38,469 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:38,471 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:38,741 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:38,743 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:39,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:39,043 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:39,319 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:39,320 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:39,608 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:39,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:39,904 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:39,906 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:40,193 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:40,196 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:40,501 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:40,503 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:40,780 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:40,782 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:41,073 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:41,075 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:41,377 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:41,378 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:41,695 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:41,697 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:42,013 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:42,015 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:42,317 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:42,318 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:42,642 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:42,643 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:42,961 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:42,962 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:43,274 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:43,276 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:43,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:43,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:43,950 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:43,952 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:44,285 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:44,286 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:44,616 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:44,618 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:44,959 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:44,960 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:45,321 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:45,323 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:45,675 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:45,676 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:46,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:46,032 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:46,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:46,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:46,725 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:46,727 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:47,069 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:47,071 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:47,449 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:47,451 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:47,869 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:47,870 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:48,288 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:57:48,290 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:57:48,704 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:57:48,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:57:49,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:57:49,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409620452] [2021-02-23 18:57:49,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:57:49,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [105] imperfect sequences [] total 105 [2021-02-23 18:57:49,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20574933] [2021-02-23 18:57:49,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 105 states [2021-02-23 18:57:49,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:57:49,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-02-23 18:57:49,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2707, Invalid=8213, Unknown=0, NotChecked=0, Total=10920 [2021-02-23 18:57:49,350 INFO L87 Difference]: Start difference. First operand 352 states and 357 transitions. Second operand 105 states. [2021-02-23 18:57:50,719 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-23 18:58:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:58:22,555 INFO L93 Difference]: Finished difference Result 399 states and 409 transitions. [2021-02-23 18:58:22,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-02-23 18:58:22,559 INFO L78 Accepts]: Start accepts. Automaton has 105 states. Word has length 341 [2021-02-23 18:58:22,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:58:22,561 INFO L225 Difference]: With dead ends: 399 [2021-02-23 18:58:22,561 INFO L226 Difference]: Without dead ends: 362 [2021-02-23 18:58:22,564 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7794 ImplicationChecksByTransitivity, 51.5s TimeCoverageRelationStatistics Valid=12971, Invalid=29671, Unknown=0, NotChecked=0, Total=42642 [2021-02-23 18:58:22,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-02-23 18:58:22,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2021-02-23 18:58:22,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2021-02-23 18:58:22,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 363 transitions. [2021-02-23 18:58:22,674 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 363 transitions. Word has length 341 [2021-02-23 18:58:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:58:22,675 INFO L480 AbstractCegarLoop]: Abstraction has 358 states and 363 transitions. [2021-02-23 18:58:22,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 105 states. [2021-02-23 18:58:22,675 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 363 transitions. [2021-02-23 18:58:22,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-02-23 18:58:22,677 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:58:22,677 INFO L422 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 50, 50, 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] [2021-02-23 18:58:22,677 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-02-23 18:58:22,678 INFO L428 AbstractCegarLoop]: === Iteration 53 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:58:22,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:58:22,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1127640856, now seen corresponding path program 50 times [2021-02-23 18:58:22,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:58:22,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421230284] [2021-02-23 18:58:22,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:58:22,696 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:58:22,697 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:58:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:58:22,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:58:22,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:58:22,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:58:22,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:58:22,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:58:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:58:22,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:58:22,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:58:22,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:58:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:58:23,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:58:23,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:58:23,171 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:58:23,173 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:58:23,200 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,201 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,260 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,262 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,328 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,330 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,396 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,398 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,466 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,468 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,542 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,544 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,620 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,622 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,702 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,703 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,785 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,787 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,874 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,875 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:23,965 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:23,967 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,064 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,066 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,162 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,163 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,263 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,265 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,377 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,379 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,507 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,638 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,773 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,775 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:24,909 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:24,910 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,040 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,042 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,171 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,173 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,314 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,316 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,457 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,459 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,607 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,609 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,767 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,769 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:25,928 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:25,929 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,086 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,088 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,257 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,259 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,428 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,429 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,600 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,602 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,774 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,776 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:26,952 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:26,954 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:27,129 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:27,131 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:27,322 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:27,324 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:27,488 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:27,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:27,673 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:27,675 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:27,824 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:27,825 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:28,000 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:28,002 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:28,195 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:28,197 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:28,389 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:28,390 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:28,597 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:28,599 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:28,806 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:28,808 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:29,017 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:29,019 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:29,236 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:29,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:29,460 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:29,462 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:29,696 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:29,697 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:29,936 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:29,938 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:30,174 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:30,176 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:30,412 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:30,413 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:30,655 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:30,656 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:30,893 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:30,895 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:31,138 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:31,140 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:31,398 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:31,400 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:31,668 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:31,669 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:31,926 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:31,928 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:32,188 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:32,205 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:32,469 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:32,471 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:32,733 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:32,735 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:33,009 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:33,011 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:33,297 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:33,299 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:33,587 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:33,589 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:33,872 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:33,874 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:34,153 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:34,155 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:34,435 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:34,437 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:34,734 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:34,736 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:35,046 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:35,048 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:35,361 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:35,363 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:35,675 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:35,677 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:35,991 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:35,993 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:36,313 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:36,315 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:36,636 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:36,638 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:36,963 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:36,965 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:37,299 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:37,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:37,606 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:37,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:37,898 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:37,900 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:38,215 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:38,217 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:38,555 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:38,557 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:38,925 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:38,927 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:39,292 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:39,294 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:39,659 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:39,661 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:40,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:40,032 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:40,416 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:40,418 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:40,802 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:40,803 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:41,190 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:41,192 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:41,578 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:41,580 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:41,958 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:41,960 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:42,330 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:42,332 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:42,731 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:42,733 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:43,124 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:43,126 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:43,506 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:43,507 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:43,897 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:43,899 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:44,285 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:44,287 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:44,692 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:44,694 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:45,114 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:45,116 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:45,543 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:45,545 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:45,975 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:45,977 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:46,382 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:46,384 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:46,739 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:46,741 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:47,149 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:47,151 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:47,591 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:47,592 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:48,045 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:58:48,047 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:58:48,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:58:48,499 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 18:58:49,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 18:58:49,164 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421230284] [2021-02-23 18:58:49,164 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 18:58:49,165 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [107] imperfect sequences [] total 107 [2021-02-23 18:58:49,165 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531379273] [2021-02-23 18:58:49,165 INFO L460 AbstractCegarLoop]: Interpolant automaton has 107 states [2021-02-23 18:58:49,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 18:58:49,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-02-23 18:58:49,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=2812, Invalid=8530, Unknown=0, NotChecked=0, Total=11342 [2021-02-23 18:58:49,166 INFO L87 Difference]: Start difference. First operand 358 states and 363 transitions. Second operand 107 states. [2021-02-23 18:58:51,087 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-02-23 18:59:26,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 18:59:26,135 INFO L93 Difference]: Finished difference Result 405 states and 415 transitions. [2021-02-23 18:59:26,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2021-02-23 18:59:26,139 INFO L78 Accepts]: Start accepts. Automaton has 107 states. Word has length 347 [2021-02-23 18:59:26,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 18:59:26,141 INFO L225 Difference]: With dead ends: 405 [2021-02-23 18:59:26,141 INFO L226 Difference]: Without dead ends: 368 [2021-02-23 18:59:26,143 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8103 ImplicationChecksByTransitivity, 57.9s TimeCoverageRelationStatistics Valid=13485, Invalid=30825, Unknown=0, NotChecked=0, Total=44310 [2021-02-23 18:59:26,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-02-23 18:59:26,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 364. [2021-02-23 18:59:26,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2021-02-23 18:59:26,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 369 transitions. [2021-02-23 18:59:26,212 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 369 transitions. Word has length 347 [2021-02-23 18:59:26,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 18:59:26,212 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 369 transitions. [2021-02-23 18:59:26,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 107 states. [2021-02-23 18:59:26,212 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 369 transitions. [2021-02-23 18:59:26,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-02-23 18:59:26,213 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 18:59:26,214 INFO L422 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 51, 51, 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] [2021-02-23 18:59:26,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-02-23 18:59:26,214 INFO L428 AbstractCegarLoop]: === Iteration 54 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 18:59:26,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 18:59:26,214 INFO L82 PathProgramCache]: Analyzing trace with hash 247261956, now seen corresponding path program 51 times [2021-02-23 18:59:26,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 18:59:26,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1289775440] [2021-02-23 18:59:26,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 18:59:26,228 INFO L84 AcceleratorFastUPR]: FastUPR could not accelerate loop because java.lang.UnsupportedOperationException: No Result found. [2021-02-23 18:59:26,230 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 18:59:26,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:26,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:26,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:26,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:26,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 18:59:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:26,421 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:26,423 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:26,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-02-23 18:59:26,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 18:59:26,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 18:59:26,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 18:59:26,605 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 18:59:26,607 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 18:59:26,640 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:26,642 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:26,715 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:26,717 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:26,793 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:26,795 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:26,874 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:26,876 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:26,959 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:26,961 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,049 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,050 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,140 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,142 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,238 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,240 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,339 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,341 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,446 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,553 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,554 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,671 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,673 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,789 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,791 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:27,913 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:27,914 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,042 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,044 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,176 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,177 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,311 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,313 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,447 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,449 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,585 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,587 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,729 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,731 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:28,876 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:28,878 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,022 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,024 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,171 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,173 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,328 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,329 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,488 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,490 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,657 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,659 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:29,857 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:29,859 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,037 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,038 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,220 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,221 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,403 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,404 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,580 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,582 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,770 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,771 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:30,960 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:30,962 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:31,146 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:31,148 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:31,299 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:31,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:31,494 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:31,496 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:31,704 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:31,705 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:31,919 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:31,921 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:32,136 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:32,137 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:32,342 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:32,343 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:32,550 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:32,552 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:32,766 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:32,767 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:32,993 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:32,995 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:33,236 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:33,238 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:33,482 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:33,484 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:33,730 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:33,732 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:33,981 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:33,983 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:34,231 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:34,233 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:34,483 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:34,485 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:34,732 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:34,734 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:34,985 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:34,986 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:35,258 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:35,260 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:35,487 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:35,489 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:35,724 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:35,725 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:35,964 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:35,966 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:36,204 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:36,206 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:36,444 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:36,446 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:36,692 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:36,694 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:36,943 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:36,945 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:37,209 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:37,211 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:37,504 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:37,506 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:37,792 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:37,794 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:38,097 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:38,099 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:38,407 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:38,409 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:38,716 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:38,718 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:39,030 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:39,032 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:39,355 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:39,357 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:39,674 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:39,676 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:39,990 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:39,991 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:40,299 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:40,301 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:40,606 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:40,608 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:40,932 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:40,934 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:41,272 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:41,274 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:41,627 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:41,629 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:41,988 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:41,990 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:42,342 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:42,344 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16 [2021-02-23 18:59:42,691 WARN L141 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size [2021-02-23 18:59:42,693 WARN L147 QuantifierPusher]: treesize reduction 9, result has 64.0 percent of original size 16