/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/recursive/recHanoi03-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 17:39:56,196 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:39:56,199 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:39:56,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 17:39:56,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:39:56,279 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:39:56,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:39:56,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:39:56,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:39:56,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:39:56,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:39:56,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:39:56,317 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:39:56,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:39:56,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:39:56,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:39:56,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:39:56,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:39:56,347 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:39:56,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:39:56,349 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 17:39:56,373 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:39:56,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:39:56,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:39:56,379 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:39:56,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:39:56,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:39:56,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:39:56,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:39:56,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:39:56,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:39:56,382 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:39:56,382 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:39:56,383 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:39:56,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:39:56,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:39:56,384 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:39:56,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:39:56,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:39:56,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:39:56,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:39:56,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:39:56,385 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:39:56,386 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:39:56,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:39:56,861 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:39:56,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:39:56,866 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:39:56,867 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:39:56,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/recHanoi03-2.c [2021-02-23 17:39:56,957 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72a7d17b/70ff7f7b8f5949a68346e7960f2e405b/FLAGbcdf21e27 [2021-02-23 17:39:57,591 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:39:57,592 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c [2021-02-23 17:39:57,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72a7d17b/70ff7f7b8f5949a68346e7960f2e405b/FLAGbcdf21e27 [2021-02-23 17:39:57,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c72a7d17b/70ff7f7b8f5949a68346e7960f2e405b [2021-02-23 17:39:57,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:39:57,978 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:39:57,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:39:57,980 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:39:57,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:39:57,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:39:57" (1/1) ... [2021-02-23 17:39:57,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7133ddeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:57, skipping insertion in model container [2021-02-23 17:39:57,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:39:57" (1/1) ... [2021-02-23 17:39:57,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:39:58,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:39:58,163 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c[769,782] [2021-02-23 17:39:58,166 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:39:58,176 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:39:58,193 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/recHanoi03-2.c[769,782] [2021-02-23 17:39:58,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:39:58,209 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:39:58,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58 WrapperNode [2021-02-23 17:39:58,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:39:58,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:39:58,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:39:58,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:39:58,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,230 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (1/1) ... [2021-02-23 17:39:58,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:39:58,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:39:58,242 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:39:58,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:39:58,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (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 17:39:58,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:39:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:39:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:39:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2021-02-23 17:39:58,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:39:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:39:58,344 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:39:58,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:39:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:39:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:39:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:39:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:39:58,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:39:58,704 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:39:58,704 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 17:39:58,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:39:58 BoogieIcfgContainer [2021-02-23 17:39:58,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:39:58,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:39:58,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:39:58,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:39:58,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:39:57" (1/3) ... [2021-02-23 17:39:58,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5ef9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:39:58, skipping insertion in model container [2021-02-23 17:39:58,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:39:58" (2/3) ... [2021-02-23 17:39:58,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5ef9ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:39:58, skipping insertion in model container [2021-02-23 17:39:58,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:39:58" (3/3) ... [2021-02-23 17:39:58,769 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2021-02-23 17:39:58,783 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:39:58,795 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:39:58,832 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:39:58,869 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:39:58,870 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:39:58,870 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:39:58,870 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:39:58,870 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:39:58,870 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:39:58,870 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:39:58,871 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:39:58,892 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2021-02-23 17:39:58,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-02-23 17:39:58,907 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:58,908 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] [2021-02-23 17:39:58,909 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:58,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:58,920 INFO L82 PathProgramCache]: Analyzing trace with hash 378607813, now seen corresponding path program 1 times [2021-02-23 17:39:58,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:58,931 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660255284] [2021-02-23 17:39:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:59,028 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:59,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:59,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:39:59,350 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:39:59,354 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:39:59,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,375 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:59,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:59,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:59,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:39:59,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:59,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:59,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:59,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:59,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:39:59,478 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 17:39:59,480 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660255284] [2021-02-23 17:39:59,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:59,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 17:39:59,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399778371] [2021-02-23 17:39:59,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 17:39:59,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:59,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 17:39:59,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-02-23 17:39:59,502 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 8 states. [2021-02-23 17:39:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:59,931 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2021-02-23 17:39:59,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 17:39:59,933 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 27 [2021-02-23 17:39:59,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:59,943 INFO L225 Difference]: With dead ends: 54 [2021-02-23 17:39:59,943 INFO L226 Difference]: Without dead ends: 34 [2021-02-23 17:39:59,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2021-02-23 17:39:59,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-02-23 17:39:59,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-02-23 17:39:59,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-02-23 17:39:59,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2021-02-23 17:39:59,999 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 27 [2021-02-23 17:39:59,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:59,999 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2021-02-23 17:39:59,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 17:39:59,999 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2021-02-23 17:40:00,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-02-23 17:40:00,002 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:00,002 INFO L422 BasicCegarLoop]: trace histogram [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] [2021-02-23 17:40:00,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:40:00,003 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:00,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:00,004 INFO L82 PathProgramCache]: Analyzing trace with hash -988587653, now seen corresponding path program 1 times [2021-02-23 17:40:00,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:00,004 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026374363] [2021-02-23 17:40:00,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:00,007 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,060 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,133 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:00,133 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:00,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,164 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,175 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,176 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:00,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-23 17:40:00,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2026374363] [2021-02-23 17:40:00,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:00,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 17:40:00,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547170728] [2021-02-23 17:40:00,194 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 17:40:00,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:00,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 17:40:00,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-02-23 17:40:00,195 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 10 states. [2021-02-23 17:40:00,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:00,619 INFO L93 Difference]: Finished difference Result 45 states and 46 transitions. [2021-02-23 17:40:00,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 17:40:00,619 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 35 [2021-02-23 17:40:00,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:00,621 INFO L225 Difference]: With dead ends: 45 [2021-02-23 17:40:00,621 INFO L226 Difference]: Without dead ends: 39 [2021-02-23 17:40:00,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-02-23 17:40:00,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-02-23 17:40:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-02-23 17:40:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2021-02-23 17:40:00,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2021-02-23 17:40:00,636 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 35 [2021-02-23 17:40:00,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:00,637 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2021-02-23 17:40:00,637 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 17:40:00,637 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2021-02-23 17:40:00,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-02-23 17:40:00,639 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:00,639 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:00,639 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 17:40:00,639 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:00,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:00,640 INFO L82 PathProgramCache]: Analyzing trace with hash -2105714043, now seen corresponding path program 2 times [2021-02-23 17:40:00,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:00,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372402345] [2021-02-23 17:40:00,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:00,643 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,692 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:00,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:00,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:00,815 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:00,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:00,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,843 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:00,844 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:00,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,858 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:00,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:00,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:00,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:00,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-02-23 17:40:00,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372402345] [2021-02-23 17:40:00,917 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:00,917 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-02-23 17:40:00,917 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103306039] [2021-02-23 17:40:00,918 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-23 17:40:00,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:00,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-23 17:40:00,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2021-02-23 17:40:00,919 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 12 states. [2021-02-23 17:40:01,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:01,595 INFO L93 Difference]: Finished difference Result 50 states and 51 transitions. [2021-02-23 17:40:01,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 17:40:01,595 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 43 [2021-02-23 17:40:01,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:01,597 INFO L225 Difference]: With dead ends: 50 [2021-02-23 17:40:01,597 INFO L226 Difference]: Without dead ends: 44 [2021-02-23 17:40:01,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=455, Unknown=0, NotChecked=0, Total=552 [2021-02-23 17:40:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-02-23 17:40:01,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-02-23 17:40:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2021-02-23 17:40:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2021-02-23 17:40:01,613 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 43 [2021-02-23 17:40:01,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:01,613 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2021-02-23 17:40:01,613 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2021-02-23 17:40:01,613 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2021-02-23 17:40:01,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-23 17:40:01,615 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:01,615 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:01,616 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 17:40:01,616 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:01,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:01,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1527861317, now seen corresponding path program 3 times [2021-02-23 17:40:01,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:01,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501415219] [2021-02-23 17:40:01,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:01,620 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:01,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:01,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:01,684 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:01,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:01,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:01,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:01,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:01,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:01,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:01,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:01,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:01,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:01,838 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:01,839 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:01,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:01,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:01,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:01,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:01,878 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,878 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:01,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:01,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:01,919 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-02-23 17:40:01,920 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501415219] [2021-02-23 17:40:01,920 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:01,920 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-02-23 17:40:01,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250569670] [2021-02-23 17:40:01,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 17:40:01,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:01,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 17:40:01,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2021-02-23 17:40:01,922 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 14 states. [2021-02-23 17:40:02,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:02,775 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2021-02-23 17:40:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-23 17:40:02,775 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 51 [2021-02-23 17:40:02,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:02,777 INFO L225 Difference]: With dead ends: 55 [2021-02-23 17:40:02,777 INFO L226 Difference]: Without dead ends: 49 [2021-02-23 17:40:02,778 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=122, Invalid=690, Unknown=0, NotChecked=0, Total=812 [2021-02-23 17:40:02,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-02-23 17:40:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2021-02-23 17:40:02,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2021-02-23 17:40:02,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 50 transitions. [2021-02-23 17:40:02,794 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 50 transitions. Word has length 51 [2021-02-23 17:40:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:02,794 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 50 transitions. [2021-02-23 17:40:02,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 17:40:02,795 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 50 transitions. [2021-02-23 17:40:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-02-23 17:40:02,797 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:02,797 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:02,797 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 17:40:02,797 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:02,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:02,798 INFO L82 PathProgramCache]: Analyzing trace with hash 1520593989, now seen corresponding path program 4 times [2021-02-23 17:40:02,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:02,798 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087866397] [2021-02-23 17:40:02,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:02,801 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:02,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:02,840 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,841 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:02,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:02,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,853 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:02,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:02,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:02,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:02,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:02,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:02,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:02,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:02,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:02,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:02,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:02,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:02,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:02,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:02,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:02,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:03,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:03,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:03,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:03,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:03,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:03,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,078 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:03,079 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:03,080 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:03,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:03,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:03,129 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,130 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:03,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:03,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:03,198 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-02-23 17:40:03,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087866397] [2021-02-23 17:40:03,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:03,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-23 17:40:03,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538417653] [2021-02-23 17:40:03,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-23 17:40:03,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:03,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-23 17:40:03,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=210, Unknown=0, NotChecked=0, Total=240 [2021-02-23 17:40:03,202 INFO L87 Difference]: Start difference. First operand 49 states and 50 transitions. Second operand 16 states. [2021-02-23 17:40:04,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:04,371 INFO L93 Difference]: Finished difference Result 60 states and 61 transitions. [2021-02-23 17:40:04,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 17:40:04,372 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 59 [2021-02-23 17:40:04,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:04,374 INFO L225 Difference]: With dead ends: 60 [2021-02-23 17:40:04,374 INFO L226 Difference]: Without dead ends: 54 [2021-02-23 17:40:04,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=147, Invalid=975, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 17:40:04,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-02-23 17:40:04,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-02-23 17:40:04,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2021-02-23 17:40:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2021-02-23 17:40:04,392 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 59 [2021-02-23 17:40:04,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:04,392 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2021-02-23 17:40:04,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-23 17:40:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2021-02-23 17:40:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-02-23 17:40:04,394 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:04,395 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:04,395 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 17:40:04,395 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:04,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:04,396 INFO L82 PathProgramCache]: Analyzing trace with hash 311637499, now seen corresponding path program 5 times [2021-02-23 17:40:04,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:04,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222606293] [2021-02-23 17:40:04,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:04,398 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:04,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:04,434 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:04,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:04,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:04,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:04,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:04,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,591 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,680 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:04,680 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:04,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:04,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:04,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:04,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-02-23 17:40:04,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222606293] [2021-02-23 17:40:04,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:04,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-02-23 17:40:04,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165424795] [2021-02-23 17:40:04,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-02-23 17:40:04,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:04,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-02-23 17:40:04,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2021-02-23 17:40:04,811 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 18 states. [2021-02-23 17:40:06,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:06,166 INFO L93 Difference]: Finished difference Result 65 states and 66 transitions. [2021-02-23 17:40:06,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-02-23 17:40:06,168 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 67 [2021-02-23 17:40:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:06,171 INFO L225 Difference]: With dead ends: 65 [2021-02-23 17:40:06,171 INFO L226 Difference]: Without dead ends: 59 [2021-02-23 17:40:06,173 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=1310, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 17:40:06,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2021-02-23 17:40:06,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2021-02-23 17:40:06,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2021-02-23 17:40:06,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2021-02-23 17:40:06,189 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 67 [2021-02-23 17:40:06,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:06,190 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2021-02-23 17:40:06,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2021-02-23 17:40:06,190 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2021-02-23 17:40:06,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-02-23 17:40:06,192 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:06,192 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:06,192 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 17:40:06,192 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:06,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:06,193 INFO L82 PathProgramCache]: Analyzing trace with hash -365146619, now seen corresponding path program 6 times [2021-02-23 17:40:06,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:06,193 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141328759] [2021-02-23 17:40:06,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:06,196 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,230 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:06,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:06,235 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:06,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,247 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:06,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:06,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,280 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,281 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:06,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,337 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:06,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,413 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,459 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,515 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,636 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:06,636 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:06,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:06,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:06,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,693 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:06,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:06,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:06,767 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-02-23 17:40:06,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141328759] [2021-02-23 17:40:06,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:06,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2021-02-23 17:40:06,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956972289] [2021-02-23 17:40:06,769 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-23 17:40:06,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:06,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-23 17:40:06,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=342, Unknown=0, NotChecked=0, Total=380 [2021-02-23 17:40:06,770 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 20 states. [2021-02-23 17:40:08,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:08,377 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2021-02-23 17:40:08,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-02-23 17:40:08,378 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 75 [2021-02-23 17:40:08,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:08,380 INFO L225 Difference]: With dead ends: 70 [2021-02-23 17:40:08,380 INFO L226 Difference]: Without dead ends: 64 [2021-02-23 17:40:08,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 270 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=197, Invalid=1695, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 17:40:08,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-02-23 17:40:08,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-02-23 17:40:08,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2021-02-23 17:40:08,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 65 transitions. [2021-02-23 17:40:08,399 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 65 transitions. Word has length 75 [2021-02-23 17:40:08,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:08,400 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 65 transitions. [2021-02-23 17:40:08,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2021-02-23 17:40:08,400 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 65 transitions. [2021-02-23 17:40:08,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-02-23 17:40:08,402 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:08,402 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:08,402 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 17:40:08,402 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:08,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:08,403 INFO L82 PathProgramCache]: Analyzing trace with hash 1749347387, now seen corresponding path program 7 times [2021-02-23 17:40:08,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:08,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733746425] [2021-02-23 17:40:08,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:08,406 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:08,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:08,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:08,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,444 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:08,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:08,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:08,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:08,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:08,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,631 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,631 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,678 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,679 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,725 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,775 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,776 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:08,777 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:08,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:08,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:08,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:08,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:08,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:08,918 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-02-23 17:40:08,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733746425] [2021-02-23 17:40:08,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:08,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-23 17:40:08,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211715524] [2021-02-23 17:40:08,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-23 17:40:08,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:08,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-23 17:40:08,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=420, Unknown=0, NotChecked=0, Total=462 [2021-02-23 17:40:08,921 INFO L87 Difference]: Start difference. First operand 64 states and 65 transitions. Second operand 22 states. [2021-02-23 17:40:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:10,862 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2021-02-23 17:40:10,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-02-23 17:40:10,863 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 83 [2021-02-23 17:40:10,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:10,864 INFO L225 Difference]: With dead ends: 75 [2021-02-23 17:40:10,864 INFO L226 Difference]: Without dead ends: 69 [2021-02-23 17:40:10,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=222, Invalid=2130, Unknown=0, NotChecked=0, Total=2352 [2021-02-23 17:40:10,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-02-23 17:40:10,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2021-02-23 17:40:10,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2021-02-23 17:40:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2021-02-23 17:40:10,884 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 83 [2021-02-23 17:40:10,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:10,884 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2021-02-23 17:40:10,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-23 17:40:10,885 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2021-02-23 17:40:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-02-23 17:40:10,886 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:10,887 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:10,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 17:40:10,887 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:10,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:10,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1584988219, now seen corresponding path program 8 times [2021-02-23 17:40:10,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:10,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037777585] [2021-02-23 17:40:10,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:10,890 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:10,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:10,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:10,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:10,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:10,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:10,962 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,964 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:10,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:10,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:10,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:10,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:11,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,130 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,147 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,197 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,295 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,353 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:11,354 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:11,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:11,415 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:11,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:11,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-02-23 17:40:11,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037777585] [2021-02-23 17:40:11,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:11,534 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-23 17:40:11,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327999511] [2021-02-23 17:40:11,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-23 17:40:11,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:11,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-23 17:40:11,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=506, Unknown=0, NotChecked=0, Total=552 [2021-02-23 17:40:11,535 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 24 states. [2021-02-23 17:40:13,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:13,909 INFO L93 Difference]: Finished difference Result 80 states and 81 transitions. [2021-02-23 17:40:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-02-23 17:40:13,911 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 91 [2021-02-23 17:40:13,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:13,913 INFO L225 Difference]: With dead ends: 80 [2021-02-23 17:40:13,913 INFO L226 Difference]: Without dead ends: 74 [2021-02-23 17:40:13,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 427 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=247, Invalid=2615, Unknown=0, NotChecked=0, Total=2862 [2021-02-23 17:40:13,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-02-23 17:40:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-02-23 17:40:13,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2021-02-23 17:40:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2021-02-23 17:40:13,935 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 91 [2021-02-23 17:40:13,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:13,936 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2021-02-23 17:40:13,936 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-23 17:40:13,936 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2021-02-23 17:40:13,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-02-23 17:40:13,946 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:13,946 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:13,946 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 17:40:13,946 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:13,947 INFO L82 PathProgramCache]: Analyzing trace with hash -79179141, now seen corresponding path program 9 times [2021-02-23 17:40:13,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:13,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763479118] [2021-02-23 17:40:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:13,951 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:13,993 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:13,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:13,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:13,994 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:13,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:14,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:14,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,036 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:14,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:14,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,061 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,077 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,077 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:14,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,109 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,110 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,205 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,220 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,469 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:14,469 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:14,499 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:14,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:14,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:14,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:14,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-02-23 17:40:14,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763479118] [2021-02-23 17:40:14,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:14,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-23 17:40:14,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764038542] [2021-02-23 17:40:14,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-23 17:40:14,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:14,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-23 17:40:14,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=600, Unknown=0, NotChecked=0, Total=650 [2021-02-23 17:40:14,661 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 26 states. [2021-02-23 17:40:17,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:17,379 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2021-02-23 17:40:17,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-02-23 17:40:17,380 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 99 [2021-02-23 17:40:17,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:17,382 INFO L225 Difference]: With dead ends: 85 [2021-02-23 17:40:17,382 INFO L226 Difference]: Without dead ends: 79 [2021-02-23 17:40:17,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=272, Invalid=3150, Unknown=0, NotChecked=0, Total=3422 [2021-02-23 17:40:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2021-02-23 17:40:17,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2021-02-23 17:40:17,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2021-02-23 17:40:17,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 80 transitions. [2021-02-23 17:40:17,402 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 80 transitions. Word has length 99 [2021-02-23 17:40:17,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:17,403 INFO L480 AbstractCegarLoop]: Abstraction has 79 states and 80 transitions. [2021-02-23 17:40:17,403 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-02-23 17:40:17,403 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 80 transitions. [2021-02-23 17:40:17,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-02-23 17:40:17,405 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:17,405 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:17,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 17:40:17,405 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:17,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:17,406 INFO L82 PathProgramCache]: Analyzing trace with hash -708935291, now seen corresponding path program 10 times [2021-02-23 17:40:17,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:17,406 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [771208292] [2021-02-23 17:40:17,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:17,408 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:17,443 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:17,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:17,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:17,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:17,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:17,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,541 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:17,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,689 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,740 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,758 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,791 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,792 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,846 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:17,969 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,970 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:17,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:17,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:17,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:18,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:18,037 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:18,038 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:18,039 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:18,039 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:18,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:18,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:18,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:18,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:18,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:18,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:18,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:18,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:18,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:18,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:18,248 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-02-23 17:40:18,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [771208292] [2021-02-23 17:40:18,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:18,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-02-23 17:40:18,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700474998] [2021-02-23 17:40:18,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-02-23 17:40:18,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:18,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-02-23 17:40:18,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=702, Unknown=0, NotChecked=0, Total=756 [2021-02-23 17:40:18,251 INFO L87 Difference]: Start difference. First operand 79 states and 80 transitions. Second operand 28 states. [2021-02-23 17:40:21,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:21,371 INFO L93 Difference]: Finished difference Result 90 states and 91 transitions. [2021-02-23 17:40:21,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-02-23 17:40:21,372 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 107 [2021-02-23 17:40:21,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:21,374 INFO L225 Difference]: With dead ends: 90 [2021-02-23 17:40:21,374 INFO L226 Difference]: Without dead ends: 84 [2021-02-23 17:40:21,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=297, Invalid=3735, Unknown=0, NotChecked=0, Total=4032 [2021-02-23 17:40:21,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-02-23 17:40:21,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-02-23 17:40:21,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-02-23 17:40:21,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2021-02-23 17:40:21,395 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 107 [2021-02-23 17:40:21,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:21,396 INFO L480 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2021-02-23 17:40:21,396 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2021-02-23 17:40:21,396 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2021-02-23 17:40:21,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-02-23 17:40:21,397 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:21,397 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:21,398 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 17:40:21,398 INFO L428 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:21,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:21,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1541400763, now seen corresponding path program 11 times [2021-02-23 17:40:21,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:21,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1010022640] [2021-02-23 17:40:21,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:21,401 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:21,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:21,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:21,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:21,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,500 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,508 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:21,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,563 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,931 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:21,932 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:21,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:21,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:21,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:21,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:22,000 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:22,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,030 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:22,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:22,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:22,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:22,067 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:22,068 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:22,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:22,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:22,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:22,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:22,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:22,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:22,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:22,318 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-02-23 17:40:22,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1010022640] [2021-02-23 17:40:22,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:22,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2021-02-23 17:40:22,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964460411] [2021-02-23 17:40:22,320 INFO L460 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-02-23 17:40:22,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:22,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-02-23 17:40:22,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=812, Unknown=0, NotChecked=0, Total=870 [2021-02-23 17:40:22,321 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand 30 states. [2021-02-23 17:40:26,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:26,035 INFO L93 Difference]: Finished difference Result 95 states and 96 transitions. [2021-02-23 17:40:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-02-23 17:40:26,035 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 115 [2021-02-23 17:40:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:26,037 INFO L225 Difference]: With dead ends: 95 [2021-02-23 17:40:26,037 INFO L226 Difference]: Without dead ends: 89 [2021-02-23 17:40:26,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 730 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=322, Invalid=4370, Unknown=0, NotChecked=0, Total=4692 [2021-02-23 17:40:26,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-02-23 17:40:26,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-02-23 17:40:26,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2021-02-23 17:40:26,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 90 transitions. [2021-02-23 17:40:26,059 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 90 transitions. Word has length 115 [2021-02-23 17:40:26,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:26,059 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 90 transitions. [2021-02-23 17:40:26,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2021-02-23 17:40:26,060 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 90 transitions. [2021-02-23 17:40:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-02-23 17:40:26,061 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:26,061 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:26,062 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 17:40:26,062 INFO L428 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:26,062 INFO L82 PathProgramCache]: Analyzing trace with hash -2128686267, now seen corresponding path program 12 times [2021-02-23 17:40:26,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:26,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880871562] [2021-02-23 17:40:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:26,064 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:26,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:26,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:26,110 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:26,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:26,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,142 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:26,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:26,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,177 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:26,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,230 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,231 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,349 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,350 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,410 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,411 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,428 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,590 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,720 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,790 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,869 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:26,869 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:26,907 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,908 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:26,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:26,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:26,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:26,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:26,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:27,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:27,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:27,295 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-02-23 17:40:27,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880871562] [2021-02-23 17:40:27,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:27,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2021-02-23 17:40:27,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47918277] [2021-02-23 17:40:27,299 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-23 17:40:27,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:27,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-23 17:40:27,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=930, Unknown=0, NotChecked=0, Total=992 [2021-02-23 17:40:27,300 INFO L87 Difference]: Start difference. First operand 89 states and 90 transitions. Second operand 32 states. [2021-02-23 17:40:31,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:31,393 INFO L93 Difference]: Finished difference Result 100 states and 101 transitions. [2021-02-23 17:40:31,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-02-23 17:40:31,394 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 123 [2021-02-23 17:40:31,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:31,396 INFO L225 Difference]: With dead ends: 100 [2021-02-23 17:40:31,396 INFO L226 Difference]: Without dead ends: 94 [2021-02-23 17:40:31,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 849 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=347, Invalid=5055, Unknown=0, NotChecked=0, Total=5402 [2021-02-23 17:40:31,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-02-23 17:40:31,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-02-23 17:40:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2021-02-23 17:40:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 95 transitions. [2021-02-23 17:40:31,420 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 95 transitions. Word has length 123 [2021-02-23 17:40:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:31,420 INFO L480 AbstractCegarLoop]: Abstraction has 94 states and 95 transitions. [2021-02-23 17:40:31,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 32 states. [2021-02-23 17:40:31,420 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 95 transitions. [2021-02-23 17:40:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-02-23 17:40:31,422 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:31,422 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:31,422 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 17:40:31,423 INFO L428 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:31,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:31,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1789841669, now seen corresponding path program 13 times [2021-02-23 17:40:31,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:31,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808854824] [2021-02-23 17:40:31,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:31,425 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:31,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:31,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:31,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:31,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:31,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:31,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,497 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:31,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:31,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:31,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,629 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,629 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,683 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,737 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,738 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:31,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:31,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:31,990 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:31,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:31,991 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:32,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:32,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:32,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,259 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:32,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:32,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,304 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,305 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:32,306 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:32,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,346 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:32,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:32,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:32,440 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:32,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:32,593 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-02-23 17:40:32,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808854824] [2021-02-23 17:40:32,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:32,594 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-02-23 17:40:32,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56252698] [2021-02-23 17:40:32,594 INFO L460 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-02-23 17:40:32,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:32,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-02-23 17:40:32,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=1056, Unknown=0, NotChecked=0, Total=1122 [2021-02-23 17:40:32,595 INFO L87 Difference]: Start difference. First operand 94 states and 95 transitions. Second operand 34 states. [2021-02-23 17:40:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:37,244 INFO L93 Difference]: Finished difference Result 105 states and 106 transitions. [2021-02-23 17:40:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-23 17:40:37,245 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 131 [2021-02-23 17:40:37,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:37,247 INFO L225 Difference]: With dead ends: 105 [2021-02-23 17:40:37,252 INFO L226 Difference]: Without dead ends: 99 [2021-02-23 17:40:37,256 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=372, Invalid=5790, Unknown=0, NotChecked=0, Total=6162 [2021-02-23 17:40:37,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-02-23 17:40:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-02-23 17:40:37,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2021-02-23 17:40:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 100 transitions. [2021-02-23 17:40:37,285 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 100 transitions. Word has length 131 [2021-02-23 17:40:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:37,286 INFO L480 AbstractCegarLoop]: Abstraction has 99 states and 100 transitions. [2021-02-23 17:40:37,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 34 states. [2021-02-23 17:40:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 100 transitions. [2021-02-23 17:40:37,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-02-23 17:40:37,290 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:37,290 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:37,290 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 17:40:37,290 INFO L428 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:37,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:37,291 INFO L82 PathProgramCache]: Analyzing trace with hash 48493829, now seen corresponding path program 14 times [2021-02-23 17:40:37,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:37,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [570166927] [2021-02-23 17:40:37,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:37,296 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:37,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:37,359 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:37,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:37,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:37,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:37,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:37,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,511 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,566 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,622 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,623 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,700 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,748 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:37,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,955 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:37,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:37,986 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:37,987 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,026 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,026 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,187 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,188 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,266 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,363 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:38,363 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:38,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:38,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:38,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:38,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:38,744 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-02-23 17:40:38,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [570166927] [2021-02-23 17:40:38,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:38,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2021-02-23 17:40:38,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502421635] [2021-02-23 17:40:38,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-02-23 17:40:38,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:38,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-02-23 17:40:38,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=1190, Unknown=0, NotChecked=0, Total=1260 [2021-02-23 17:40:38,746 INFO L87 Difference]: Start difference. First operand 99 states and 100 transitions. Second operand 36 states. [2021-02-23 17:40:43,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:43,968 INFO L93 Difference]: Finished difference Result 110 states and 111 transitions. [2021-02-23 17:40:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-02-23 17:40:43,971 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 139 [2021-02-23 17:40:43,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:43,972 INFO L225 Difference]: With dead ends: 110 [2021-02-23 17:40:43,972 INFO L226 Difference]: Without dead ends: 104 [2021-02-23 17:40:43,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1114 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=397, Invalid=6575, Unknown=0, NotChecked=0, Total=6972 [2021-02-23 17:40:43,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-02-23 17:40:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-02-23 17:40:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104 states. [2021-02-23 17:40:43,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 105 transitions. [2021-02-23 17:40:43,996 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 105 transitions. Word has length 139 [2021-02-23 17:40:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:43,997 INFO L480 AbstractCegarLoop]: Abstraction has 104 states and 105 transitions. [2021-02-23 17:40:43,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 36 states. [2021-02-23 17:40:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 105 transitions. [2021-02-23 17:40:43,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2021-02-23 17:40:43,998 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:43,998 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:43,998 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 17:40:43,998 INFO L428 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:43,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:43,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1843373371, now seen corresponding path program 15 times [2021-02-23 17:40:43,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:43,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [129970491] [2021-02-23 17:40:44,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:44,002 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:44,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:44,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:44,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:44,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:44,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:44,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:44,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,236 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,295 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,296 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,488 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,489 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,561 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,725 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,806 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,891 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,929 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,930 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:44,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:44,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:44,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:44,979 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:45,064 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:45,066 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,066 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,105 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:45,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,165 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:45,166 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:45,167 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:45,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:45,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:45,287 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,288 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:45,289 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:45,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:45,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:45,539 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-02-23 17:40:45,539 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [129970491] [2021-02-23 17:40:45,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:45,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2021-02-23 17:40:45,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137783754] [2021-02-23 17:40:45,540 INFO L460 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-02-23 17:40:45,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:45,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-02-23 17:40:45,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=1332, Unknown=0, NotChecked=0, Total=1406 [2021-02-23 17:40:45,544 INFO L87 Difference]: Start difference. First operand 104 states and 105 transitions. Second operand 38 states. [2021-02-23 17:40:51,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:51,296 INFO L93 Difference]: Finished difference Result 115 states and 116 transitions. [2021-02-23 17:40:51,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-02-23 17:40:51,297 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 147 [2021-02-23 17:40:51,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:51,300 INFO L225 Difference]: With dead ends: 115 [2021-02-23 17:40:51,300 INFO L226 Difference]: Without dead ends: 109 [2021-02-23 17:40:51,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1260 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=422, Invalid=7410, Unknown=0, NotChecked=0, Total=7832 [2021-02-23 17:40:51,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-23 17:40:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-02-23 17:40:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-23 17:40:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 110 transitions. [2021-02-23 17:40:51,326 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 110 transitions. Word has length 147 [2021-02-23 17:40:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:51,327 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 110 transitions. [2021-02-23 17:40:51,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 38 states. [2021-02-23 17:40:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 110 transitions. [2021-02-23 17:40:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-02-23 17:40:51,328 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:51,328 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:51,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 17:40:51,329 INFO L428 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:51,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:51,329 INFO L82 PathProgramCache]: Analyzing trace with hash -548804923, now seen corresponding path program 16 times [2021-02-23 17:40:51,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:51,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [754256497] [2021-02-23 17:40:51,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:51,332 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:51,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:51,383 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:51,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:51,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:51,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,479 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,480 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:51,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,533 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,534 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,534 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,535 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,657 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,674 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,751 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,869 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,870 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,871 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:51,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:51,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:51,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:51,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,023 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,204 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,204 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,249 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,338 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,338 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,375 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,550 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,643 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:40:52,644 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:40:52,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:52,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:52,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:52,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:52,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:52,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-02-23 17:40:53,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [754256497] [2021-02-23 17:40:53,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:40:53,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2021-02-23 17:40:53,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942336608] [2021-02-23 17:40:53,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-02-23 17:40:53,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:40:53,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-02-23 17:40:53,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1482, Unknown=0, NotChecked=0, Total=1560 [2021-02-23 17:40:53,150 INFO L87 Difference]: Start difference. First operand 109 states and 110 transitions. Second operand 40 states. [2021-02-23 17:40:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:40:59,522 INFO L93 Difference]: Finished difference Result 120 states and 121 transitions. [2021-02-23 17:40:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-02-23 17:40:59,522 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 155 [2021-02-23 17:40:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:40:59,525 INFO L225 Difference]: With dead ends: 120 [2021-02-23 17:40:59,525 INFO L226 Difference]: Without dead ends: 114 [2021-02-23 17:40:59,527 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1415 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=447, Invalid=8295, Unknown=0, NotChecked=0, Total=8742 [2021-02-23 17:40:59,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-02-23 17:40:59,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-02-23 17:40:59,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2021-02-23 17:40:59,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 115 transitions. [2021-02-23 17:40:59,558 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 115 transitions. Word has length 155 [2021-02-23 17:40:59,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:40:59,558 INFO L480 AbstractCegarLoop]: Abstraction has 114 states and 115 transitions. [2021-02-23 17:40:59,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has 40 states. [2021-02-23 17:40:59,559 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 115 transitions. [2021-02-23 17:40:59,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-02-23 17:40:59,559 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:40:59,559 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:40:59,560 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-23 17:40:59,560 INFO L428 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:40:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:40:59,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1496364165, now seen corresponding path program 17 times [2021-02-23 17:40:59,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:40:59,561 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336843700] [2021-02-23 17:40:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:40:59,563 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:40:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:59,615 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:59,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:59,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,626 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:59,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:40:59,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,655 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,656 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:40:59,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:40:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,701 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:59,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:40:59,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:59,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,835 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,836 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:59,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:59,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:40:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:40:59,972 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,973 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:40:59,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:40:59,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:40:59,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,043 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,044 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,045 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,065 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,065 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,388 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,389 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,522 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,739 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:00,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:00,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:00,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:00,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:01,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:01,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:01,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:01,012 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:01,012 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:01,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:01,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:01,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:01,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:01,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:01,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:01,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:01,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:01,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:01,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:01,470 INFO L134 CoverageAnalysis]: Checked inductivity of 442 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-02-23 17:41:01,470 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336843700] [2021-02-23 17:41:01,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:01,471 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2021-02-23 17:41:01,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178534996] [2021-02-23 17:41:01,471 INFO L460 AbstractCegarLoop]: Interpolant automaton has 42 states [2021-02-23 17:41:01,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:01,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-02-23 17:41:01,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1640, Unknown=0, NotChecked=0, Total=1722 [2021-02-23 17:41:01,472 INFO L87 Difference]: Start difference. First operand 114 states and 115 transitions. Second operand 42 states. [2021-02-23 17:41:08,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:41:08,661 INFO L93 Difference]: Finished difference Result 125 states and 126 transitions. [2021-02-23 17:41:08,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-02-23 17:41:08,662 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 163 [2021-02-23 17:41:08,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:41:08,664 INFO L225 Difference]: With dead ends: 125 [2021-02-23 17:41:08,665 INFO L226 Difference]: Without dead ends: 119 [2021-02-23 17:41:08,667 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1579 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=472, Invalid=9230, Unknown=0, NotChecked=0, Total=9702 [2021-02-23 17:41:08,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-02-23 17:41:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-02-23 17:41:08,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2021-02-23 17:41:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 120 transitions. [2021-02-23 17:41:08,696 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 120 transitions. Word has length 163 [2021-02-23 17:41:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:41:08,697 INFO L480 AbstractCegarLoop]: Abstraction has 119 states and 120 transitions. [2021-02-23 17:41:08,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 42 states. [2021-02-23 17:41:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 120 transitions. [2021-02-23 17:41:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-02-23 17:41:08,698 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:41:08,699 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:41:08,699 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-02-23 17:41:08,699 INFO L428 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:41:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:41:08,699 INFO L82 PathProgramCache]: Analyzing trace with hash 2139924613, now seen corresponding path program 18 times [2021-02-23 17:41:08,700 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:41:08,700 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [392483538] [2021-02-23 17:41:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:41:08,702 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:41:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:08,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,755 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:08,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,756 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:08,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:08,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:08,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:41:08,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:08,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:08,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:41:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:08,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:08,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:08,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:08,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:08,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:08,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:08,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:08,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:08,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:08,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:08,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,010 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,011 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,094 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,252 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,426 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,823 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:09,931 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:09,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:09,998 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:09,999 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:10,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,070 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:10,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,224 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:10,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:10,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,556 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:10,557 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:10,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:10,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:10,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,732 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,734 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:10,800 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:10,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:11,173 INFO L134 CoverageAnalysis]: Checked inductivity of 495 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-02-23 17:41:11,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [392483538] [2021-02-23 17:41:11,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:11,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2021-02-23 17:41:11,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443861359] [2021-02-23 17:41:11,174 INFO L460 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-02-23 17:41:11,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:11,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-02-23 17:41:11,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1806, Unknown=0, NotChecked=0, Total=1892 [2021-02-23 17:41:11,175 INFO L87 Difference]: Start difference. First operand 119 states and 120 transitions. Second operand 44 states. [2021-02-23 17:41:19,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:41:19,138 INFO L93 Difference]: Finished difference Result 130 states and 131 transitions. [2021-02-23 17:41:19,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-23 17:41:19,140 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 171 [2021-02-23 17:41:19,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:41:19,143 INFO L225 Difference]: With dead ends: 130 [2021-02-23 17:41:19,143 INFO L226 Difference]: Without dead ends: 124 [2021-02-23 17:41:19,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1752 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=497, Invalid=10215, Unknown=0, NotChecked=0, Total=10712 [2021-02-23 17:41:19,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-02-23 17:41:19,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2021-02-23 17:41:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2021-02-23 17:41:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 125 transitions. [2021-02-23 17:41:19,169 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 125 transitions. Word has length 171 [2021-02-23 17:41:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:41:19,169 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 125 transitions. [2021-02-23 17:41:19,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 44 states. [2021-02-23 17:41:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 125 transitions. [2021-02-23 17:41:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-02-23 17:41:19,171 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:41:19,171 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:41:19,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-02-23 17:41:19,171 INFO L428 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:41:19,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:41:19,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1013195195, now seen corresponding path program 19 times [2021-02-23 17:41:19,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:41:19,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [164379700] [2021-02-23 17:41:19,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:41:19,174 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:41:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:19,221 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,222 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:19,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:19,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:19,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:41:19,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,271 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:19,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:41:19,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,339 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:19,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,469 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,470 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,486 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,536 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,537 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,554 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,617 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,618 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,619 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,619 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,638 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,639 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,689 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,690 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,839 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,840 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:19,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:19,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:19,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:19,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:19,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,050 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,191 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,232 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,233 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,367 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,368 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,447 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,825 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:20,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:20,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:20,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:20,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:21,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,001 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:21,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:21,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:21,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:21,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:21,123 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:21,124 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:21,190 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:21,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:21,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:21,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,264 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:21,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:21,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-02-23 17:41:21,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [164379700] [2021-02-23 17:41:21,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:21,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2021-02-23 17:41:21,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639308913] [2021-02-23 17:41:21,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-02-23 17:41:21,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:21,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-02-23 17:41:21,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=1980, Unknown=0, NotChecked=0, Total=2070 [2021-02-23 17:41:21,656 INFO L87 Difference]: Start difference. First operand 124 states and 125 transitions. Second operand 46 states. [2021-02-23 17:41:30,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:41:30,381 INFO L93 Difference]: Finished difference Result 135 states and 136 transitions. [2021-02-23 17:41:30,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-02-23 17:41:30,383 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 179 [2021-02-23 17:41:30,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:41:30,384 INFO L225 Difference]: With dead ends: 135 [2021-02-23 17:41:30,384 INFO L226 Difference]: Without dead ends: 129 [2021-02-23 17:41:30,386 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1934 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=522, Invalid=11250, Unknown=0, NotChecked=0, Total=11772 [2021-02-23 17:41:30,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-02-23 17:41:30,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2021-02-23 17:41:30,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2021-02-23 17:41:30,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 130 transitions. [2021-02-23 17:41:30,411 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 130 transitions. Word has length 179 [2021-02-23 17:41:30,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:41:30,411 INFO L480 AbstractCegarLoop]: Abstraction has 129 states and 130 transitions. [2021-02-23 17:41:30,411 INFO L481 AbstractCegarLoop]: Interpolant automaton has 46 states. [2021-02-23 17:41:30,411 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 130 transitions. [2021-02-23 17:41:30,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-02-23 17:41:30,412 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:41:30,413 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:41:30,413 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-02-23 17:41:30,413 INFO L428 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:41:30,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:41:30,413 INFO L82 PathProgramCache]: Analyzing trace with hash -236438971, now seen corresponding path program 20 times [2021-02-23 17:41:30,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:41:30,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [597081520] [2021-02-23 17:41:30,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:41:30,416 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:41:30,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,470 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,471 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:30,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:30,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,476 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:30,481 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,482 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:30,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:41:30,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:30,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:41:30,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,568 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,569 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:30,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,844 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,845 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,845 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,846 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:30,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,920 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:30,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:30,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,091 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,118 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,172 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,172 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,214 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,215 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,291 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,418 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,471 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,472 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,548 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,711 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:31,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:31,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:31,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:31,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:31,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,003 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,004 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,116 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:32,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:32,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,554 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:32,555 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:32,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:32,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:32,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,716 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,716 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:32,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:32,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 610 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-02-23 17:41:33,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [597081520] [2021-02-23 17:41:33,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:33,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2021-02-23 17:41:33,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153794056] [2021-02-23 17:41:33,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 48 states [2021-02-23 17:41:33,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:33,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-02-23 17:41:33,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=2162, Unknown=0, NotChecked=0, Total=2256 [2021-02-23 17:41:33,163 INFO L87 Difference]: Start difference. First operand 129 states and 130 transitions. Second operand 48 states. [2021-02-23 17:41:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:41:42,838 INFO L93 Difference]: Finished difference Result 140 states and 141 transitions. [2021-02-23 17:41:42,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-02-23 17:41:42,840 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 187 [2021-02-23 17:41:42,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:41:42,841 INFO L225 Difference]: With dead ends: 140 [2021-02-23 17:41:42,841 INFO L226 Difference]: Without dead ends: 134 [2021-02-23 17:41:42,843 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2125 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=547, Invalid=12335, Unknown=0, NotChecked=0, Total=12882 [2021-02-23 17:41:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-02-23 17:41:42,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-02-23 17:41:42,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2021-02-23 17:41:42,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 135 transitions. [2021-02-23 17:41:42,871 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 135 transitions. Word has length 187 [2021-02-23 17:41:42,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:41:42,872 INFO L480 AbstractCegarLoop]: Abstraction has 134 states and 135 transitions. [2021-02-23 17:41:42,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 48 states. [2021-02-23 17:41:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 135 transitions. [2021-02-23 17:41:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-23 17:41:42,874 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:41:42,874 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:41:42,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-02-23 17:41:42,874 INFO L428 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:41:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:41:42,875 INFO L82 PathProgramCache]: Analyzing trace with hash -1511905285, now seen corresponding path program 21 times [2021-02-23 17:41:42,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:41:42,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100142220] [2021-02-23 17:41:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:41:42,877 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:41:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:42,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:42,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:42,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:42,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:42,941 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:42,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:42,945 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:42,946 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:42,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:41:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:42,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:42,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:42,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:41:43,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,029 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,049 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:43,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,285 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,355 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,521 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,522 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,608 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,641 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,642 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,706 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,746 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,747 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,823 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,824 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:43,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:43,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:43,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:43,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,040 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,162 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,164 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,207 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,322 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,323 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,513 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,575 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,576 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,648 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,847 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:44,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:44,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:44,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:44,991 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:44,992 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:45,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:45,068 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,069 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:45,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:45,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:45,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:45,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:45,229 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:45,230 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:45,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:45,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:45,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:45,396 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:45,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:45,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:45,876 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2021-02-23 17:41:45,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100142220] [2021-02-23 17:41:45,876 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:45,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2021-02-23 17:41:45,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173283286] [2021-02-23 17:41:45,877 INFO L460 AbstractCegarLoop]: Interpolant automaton has 50 states [2021-02-23 17:41:45,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:45,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-02-23 17:41:45,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=2352, Unknown=0, NotChecked=0, Total=2450 [2021-02-23 17:41:45,878 INFO L87 Difference]: Start difference. First operand 134 states and 135 transitions. Second operand 50 states. [2021-02-23 17:41:56,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:41:56,606 INFO L93 Difference]: Finished difference Result 145 states and 146 transitions. [2021-02-23 17:41:56,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-02-23 17:41:56,610 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 195 [2021-02-23 17:41:56,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:41:56,612 INFO L225 Difference]: With dead ends: 145 [2021-02-23 17:41:56,612 INFO L226 Difference]: Without dead ends: 139 [2021-02-23 17:41:56,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2325 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=572, Invalid=13470, Unknown=0, NotChecked=0, Total=14042 [2021-02-23 17:41:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-02-23 17:41:56,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2021-02-23 17:41:56,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2021-02-23 17:41:56,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 140 transitions. [2021-02-23 17:41:56,642 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 140 transitions. Word has length 195 [2021-02-23 17:41:56,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:41:56,643 INFO L480 AbstractCegarLoop]: Abstraction has 139 states and 140 transitions. [2021-02-23 17:41:56,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 50 states. [2021-02-23 17:41:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 140 transitions. [2021-02-23 17:41:56,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2021-02-23 17:41:56,644 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:41:56,644 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:41:56,644 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-02-23 17:41:56,644 INFO L428 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:41:56,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:41:56,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1449616379, now seen corresponding path program 22 times [2021-02-23 17:41:56,645 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:41:56,645 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [244482623] [2021-02-23 17:41:56,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:41:56,647 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:41:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:56,708 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,709 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:56,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:56,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:56,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:56,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:41:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:56,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,749 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:41:56,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:41:56,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:56,795 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:56,803 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,804 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:56,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,816 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:41:56,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:56,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,865 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:56,866 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:56,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,880 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:56,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:56,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:56,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:56,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:56,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:56,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,034 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,035 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,035 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,198 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,198 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,199 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,223 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,274 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,362 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,363 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,398 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,460 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,555 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,555 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,556 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,557 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,713 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,821 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:57,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:57,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:57,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:57,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:57,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,014 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,062 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,063 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,133 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,307 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,308 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,446 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,523 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,596 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,676 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,676 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:58,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:58,850 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,851 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:58,852 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:58,928 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:58,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:59,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:59,012 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:59,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:59,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,096 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:59,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:59,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:59,185 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:41:59,186 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:41:59,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:59,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:41:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:41:59,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:59,366 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:41:59,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:41:59,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:41:59,907 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2021-02-23 17:41:59,908 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [244482623] [2021-02-23 17:41:59,908 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:41:59,908 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2021-02-23 17:41:59,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575154551] [2021-02-23 17:41:59,909 INFO L460 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-02-23 17:41:59,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:41:59,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-02-23 17:41:59,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=2550, Unknown=0, NotChecked=0, Total=2652 [2021-02-23 17:41:59,910 INFO L87 Difference]: Start difference. First operand 139 states and 140 transitions. Second operand 52 states. [2021-02-23 17:42:11,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:42:11,883 INFO L93 Difference]: Finished difference Result 150 states and 151 transitions. [2021-02-23 17:42:11,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-02-23 17:42:11,884 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 203 [2021-02-23 17:42:11,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:42:11,886 INFO L225 Difference]: With dead ends: 150 [2021-02-23 17:42:11,887 INFO L226 Difference]: Without dead ends: 144 [2021-02-23 17:42:11,888 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2534 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=597, Invalid=14655, Unknown=0, NotChecked=0, Total=15252 [2021-02-23 17:42:11,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-02-23 17:42:11,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2021-02-23 17:42:11,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2021-02-23 17:42:11,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 145 transitions. [2021-02-23 17:42:11,923 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 145 transitions. Word has length 203 [2021-02-23 17:42:11,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:42:11,924 INFO L480 AbstractCegarLoop]: Abstraction has 144 states and 145 transitions. [2021-02-23 17:42:11,924 INFO L481 AbstractCegarLoop]: Interpolant automaton has 52 states. [2021-02-23 17:42:11,924 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 145 transitions. [2021-02-23 17:42:11,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-02-23 17:42:11,926 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:42:11,926 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:42:11,926 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-02-23 17:42:11,927 INFO L428 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:42:11,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:42:11,927 INFO L82 PathProgramCache]: Analyzing trace with hash 361586235, now seen corresponding path program 23 times [2021-02-23 17:42:11,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:42:11,927 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113789913] [2021-02-23 17:42:11,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:42:11,930 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:42:11,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,003 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,004 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:12,005 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,005 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:12,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:12,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:12,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:42:12,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,055 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,056 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:12,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:42:12,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,144 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:12,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,245 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,245 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,432 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,548 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,698 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,733 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,851 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,852 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:12,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:12,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:12,923 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,924 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:12,960 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:12,961 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,024 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,025 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,136 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,137 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,260 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,432 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,433 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,507 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,507 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,558 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:13,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:13,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:13,942 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:13,942 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,255 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,422 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,422 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,423 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,570 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,742 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,827 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,828 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:14,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:14,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:14,922 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:14,923 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:42:14,925 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:42:15,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:15,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:15,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:15,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:15,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:15,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:15,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:15,205 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:15,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:15,729 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 805 trivial. 0 not checked. [2021-02-23 17:42:15,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113789913] [2021-02-23 17:42:15,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:42:15,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2021-02-23 17:42:15,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261829498] [2021-02-23 17:42:15,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 54 states [2021-02-23 17:42:15,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:42:15,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-02-23 17:42:15,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=2756, Unknown=0, NotChecked=0, Total=2862 [2021-02-23 17:42:15,731 INFO L87 Difference]: Start difference. First operand 144 states and 145 transitions. Second operand 54 states. [2021-02-23 17:42:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:42:28,974 INFO L93 Difference]: Finished difference Result 155 states and 156 transitions. [2021-02-23 17:42:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-02-23 17:42:28,975 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 211 [2021-02-23 17:42:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:42:28,978 INFO L225 Difference]: With dead ends: 155 [2021-02-23 17:42:28,978 INFO L226 Difference]: Without dead ends: 149 [2021-02-23 17:42:28,980 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2752 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=622, Invalid=15890, Unknown=0, NotChecked=0, Total=16512 [2021-02-23 17:42:28,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-02-23 17:42:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-02-23 17:42:29,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2021-02-23 17:42:29,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 150 transitions. [2021-02-23 17:42:29,030 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 150 transitions. Word has length 211 [2021-02-23 17:42:29,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:42:29,030 INFO L480 AbstractCegarLoop]: Abstraction has 149 states and 150 transitions. [2021-02-23 17:42:29,031 INFO L481 AbstractCegarLoop]: Interpolant automaton has 54 states. [2021-02-23 17:42:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 150 transitions. [2021-02-23 17:42:29,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-02-23 17:42:29,032 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:42:29,032 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:42:29,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-02-23 17:42:29,034 INFO L428 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:42:29,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:42:29,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1054461381, now seen corresponding path program 24 times [2021-02-23 17:42:29,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:42:29,035 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324658027] [2021-02-23 17:42:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:42:29,040 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:42:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,121 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:29,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:29,128 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:29,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,139 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:42:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,183 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:29,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:42:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,258 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,258 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,269 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:29,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,384 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,465 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,602 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,603 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,681 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,891 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,893 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:29,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:29,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,996 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:29,997 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:29,998 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,036 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,037 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,109 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,150 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,151 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,218 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,266 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,358 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,359 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,361 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,404 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,474 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,475 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,529 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,530 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,609 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,807 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:30,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:30,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,888 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:30,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:30,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,031 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,032 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,101 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,254 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,255 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,342 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,344 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,606 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,695 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,696 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:31,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:31,871 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,872 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:31,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:31,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:31,960 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:32,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:32,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:32,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:32,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:32,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,252 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:32,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,254 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:32,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:32,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:32,447 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:42:32,448 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:42:32,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,554 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:32,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:32,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:32,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:32,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:32,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:32,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:33,332 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2021-02-23 17:42:33,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324658027] [2021-02-23 17:42:33,332 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:42:33,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [56] imperfect sequences [] total 56 [2021-02-23 17:42:33,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515913016] [2021-02-23 17:42:33,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 56 states [2021-02-23 17:42:33,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:42:33,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-02-23 17:42:33,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=2970, Unknown=0, NotChecked=0, Total=3080 [2021-02-23 17:42:33,333 INFO L87 Difference]: Start difference. First operand 149 states and 150 transitions. Second operand 56 states. [2021-02-23 17:42:48,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:42:48,442 INFO L93 Difference]: Finished difference Result 160 states and 161 transitions. [2021-02-23 17:42:48,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-02-23 17:42:48,443 INFO L78 Accepts]: Start accepts. Automaton has 56 states. Word has length 219 [2021-02-23 17:42:48,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:42:48,445 INFO L225 Difference]: With dead ends: 160 [2021-02-23 17:42:48,445 INFO L226 Difference]: Without dead ends: 154 [2021-02-23 17:42:48,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2979 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=647, Invalid=17175, Unknown=0, NotChecked=0, Total=17822 [2021-02-23 17:42:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-02-23 17:42:48,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2021-02-23 17:42:48,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2021-02-23 17:42:48,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 155 transitions. [2021-02-23 17:42:48,481 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 155 transitions. Word has length 219 [2021-02-23 17:42:48,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:42:48,481 INFO L480 AbstractCegarLoop]: Abstraction has 154 states and 155 transitions. [2021-02-23 17:42:48,481 INFO L481 AbstractCegarLoop]: Interpolant automaton has 56 states. [2021-02-23 17:42:48,482 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 155 transitions. [2021-02-23 17:42:48,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-02-23 17:42:48,483 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:42:48,483 INFO L422 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:42:48,484 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-02-23 17:42:48,484 INFO L428 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:42:48,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:42:48,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1196833669, now seen corresponding path program 25 times [2021-02-23 17:42:48,484 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:42:48,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979472454] [2021-02-23 17:42:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:42:48,487 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:42:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,570 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:48,572 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,573 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:48,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:48,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,583 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:48,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:42:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,622 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,623 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:42:48,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:42:48,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:48,683 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,684 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,696 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:42:48,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:48,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:48,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:48,861 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,879 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:48,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:48,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:48,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:48,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,050 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,051 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,079 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,145 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,148 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,261 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,487 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,488 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,489 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,490 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,614 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,660 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,810 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:49,883 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,884 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:49,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:49,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,019 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,020 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,079 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,218 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,366 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,454 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,691 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,692 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,861 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:50,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:50,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:50,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:50,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:50,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,051 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,052 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:51,144 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:51,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,146 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,231 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,232 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:51,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:51,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,330 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,420 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,421 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:51,518 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,519 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:51,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,520 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:51,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,713 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:51,714 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,715 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,809 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:51,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:51,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:51,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:51,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:52,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:52,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:52,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:52,117 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:42:52,118 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:42:52,226 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:52,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:42:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:42:52,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:52,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:42:52,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:42:52,440 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:42:53,077 INFO L134 CoverageAnalysis]: Checked inductivity of 950 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2021-02-23 17:42:53,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979472454] [2021-02-23 17:42:53,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:42:53,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [58] imperfect sequences [] total 58 [2021-02-23 17:42:53,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960931636] [2021-02-23 17:42:53,078 INFO L460 AbstractCegarLoop]: Interpolant automaton has 58 states [2021-02-23 17:42:53,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:42:53,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-02-23 17:42:53,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=3192, Unknown=0, NotChecked=0, Total=3306 [2021-02-23 17:42:53,079 INFO L87 Difference]: Start difference. First operand 154 states and 155 transitions. Second operand 58 states. [2021-02-23 17:43:09,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:43:09,888 INFO L93 Difference]: Finished difference Result 165 states and 166 transitions. [2021-02-23 17:43:09,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-02-23 17:43:09,889 INFO L78 Accepts]: Start accepts. Automaton has 58 states. Word has length 227 [2021-02-23 17:43:09,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:43:09,891 INFO L225 Difference]: With dead ends: 165 [2021-02-23 17:43:09,891 INFO L226 Difference]: Without dead ends: 159 [2021-02-23 17:43:09,893 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3215 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=672, Invalid=18510, Unknown=0, NotChecked=0, Total=19182 [2021-02-23 17:43:09,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-02-23 17:43:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2021-02-23 17:43:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2021-02-23 17:43:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 160 transitions. [2021-02-23 17:43:09,934 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 160 transitions. Word has length 227 [2021-02-23 17:43:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:43:09,935 INFO L480 AbstractCegarLoop]: Abstraction has 159 states and 160 transitions. [2021-02-23 17:43:09,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has 58 states. [2021-02-23 17:43:09,935 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 160 transitions. [2021-02-23 17:43:09,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-02-23 17:43:09,936 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:43:09,937 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 26, 1, 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 17:43:09,937 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-02-23 17:43:09,937 INFO L428 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:43:09,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:43:09,938 INFO L82 PathProgramCache]: Analyzing trace with hash 786943877, now seen corresponding path program 26 times [2021-02-23 17:43:09,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:43:09,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015325572] [2021-02-23 17:43:09,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:43:09,941 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:43:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,029 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:10,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:10,038 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,039 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:10,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:10,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:43:10,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,092 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,093 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:10,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:43:10,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,181 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,192 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,192 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:10,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,315 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,455 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,478 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,479 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,551 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,652 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,682 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,682 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,859 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:10,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:10,973 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,974 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:10,974 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:10,975 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,097 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,239 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,240 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,241 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,368 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,369 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,369 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,370 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,504 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,506 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,506 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,564 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,647 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,648 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,649 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,712 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,714 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:11,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:11,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:11,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:11,999 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,000 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,001 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:12,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,201 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,202 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,290 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,291 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:12,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,476 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,477 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:12,576 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,577 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:12,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:12,771 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,771 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:12,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:12,956 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,957 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:12,958 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:12,959 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:13,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:13,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,241 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,242 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:13,343 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,343 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:13,344 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,345 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,444 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,445 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:13,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:13,559 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,560 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,660 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:13,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:13,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:13,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:13,888 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:13,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:14,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:14,007 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:14,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:14,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:14,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:14,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:14,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:14,249 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:43:14,251 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:43:14,380 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:14,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:14,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:14,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:14,639 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:14,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:15,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1027 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1027 trivial. 0 not checked. [2021-02-23 17:43:15,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015325572] [2021-02-23 17:43:15,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:43:15,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [60] imperfect sequences [] total 60 [2021-02-23 17:43:15,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580777194] [2021-02-23 17:43:15,350 INFO L460 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-02-23 17:43:15,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:43:15,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-02-23 17:43:15,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=3422, Unknown=0, NotChecked=0, Total=3540 [2021-02-23 17:43:15,351 INFO L87 Difference]: Start difference. First operand 159 states and 160 transitions. Second operand 60 states. [2021-02-23 17:43:33,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:43:33,984 INFO L93 Difference]: Finished difference Result 170 states and 171 transitions. [2021-02-23 17:43:33,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-02-23 17:43:33,986 INFO L78 Accepts]: Start accepts. Automaton has 60 states. Word has length 235 [2021-02-23 17:43:33,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:43:33,989 INFO L225 Difference]: With dead ends: 170 [2021-02-23 17:43:33,989 INFO L226 Difference]: Without dead ends: 164 [2021-02-23 17:43:33,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3460 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=697, Invalid=19895, Unknown=0, NotChecked=0, Total=20592 [2021-02-23 17:43:33,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2021-02-23 17:43:34,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2021-02-23 17:43:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2021-02-23 17:43:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 165 transitions. [2021-02-23 17:43:34,024 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 165 transitions. Word has length 235 [2021-02-23 17:43:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:43:34,024 INFO L480 AbstractCegarLoop]: Abstraction has 164 states and 165 transitions. [2021-02-23 17:43:34,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has 60 states. [2021-02-23 17:43:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 165 transitions. [2021-02-23 17:43:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 17:43:34,026 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:43:34,026 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 1, 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 17:43:34,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-02-23 17:43:34,027 INFO L428 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:43:34,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:43:34,027 INFO L82 PathProgramCache]: Analyzing trace with hash -142910789, now seen corresponding path program 27 times [2021-02-23 17:43:34,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:43:34,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2039472539] [2021-02-23 17:43:34,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:43:34,030 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:43:34,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:34,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:34,132 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,133 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:34,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:34,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:43:34,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,194 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:43:34,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:43:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:34,319 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,321 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,340 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:43:34,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,447 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,448 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:34,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,468 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,469 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:34,592 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,593 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,621 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:34,744 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,745 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,781 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:34,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:34,895 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:34,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:34,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:34,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,042 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,043 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,044 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,089 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,090 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:35,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,224 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,227 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,387 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,389 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,390 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,443 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:35,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,598 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,802 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:35,917 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,918 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:35,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:35,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:35,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,082 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,083 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,084 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,146 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,237 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,238 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,685 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,686 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,792 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,793 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,794 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,795 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,880 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,881 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:36,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:36,981 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,982 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:36,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:36,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:37,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:37,182 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,182 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,275 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,276 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:37,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:37,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,383 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:37,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,480 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,481 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:37,598 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,599 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:37,599 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,600 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:37,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:37,836 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:37,838 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,839 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:37,950 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:37,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:38,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:38,072 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:38,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,185 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,186 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:38,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:38,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,437 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,439 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:38,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:38,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,564 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,679 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:38,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:38,805 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,806 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:38,807 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,808 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:38,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:38,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:39,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:39,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:39,059 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,060 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:39,061 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,062 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:39,188 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,189 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:39,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:39,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:39,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:39,328 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:43:39,330 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:43:39,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,475 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:43:39,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:43:39,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:39,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:43:39,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:43:39,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:43:40,546 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1107 trivial. 0 not checked. [2021-02-23 17:43:40,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2039472539] [2021-02-23 17:43:40,547 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:43:40,547 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2021-02-23 17:43:40,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566056896] [2021-02-23 17:43:40,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 62 states [2021-02-23 17:43:40,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:43:40,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-02-23 17:43:40,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=3660, Unknown=0, NotChecked=0, Total=3782 [2021-02-23 17:43:40,548 INFO L87 Difference]: Start difference. First operand 164 states and 165 transitions. Second operand 62 states. [2021-02-23 17:44:03,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:44:03,019 INFO L93 Difference]: Finished difference Result 175 states and 176 transitions. [2021-02-23 17:44:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-02-23 17:44:03,021 INFO L78 Accepts]: Start accepts. Automaton has 62 states. Word has length 243 [2021-02-23 17:44:03,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:44:03,023 INFO L225 Difference]: With dead ends: 175 [2021-02-23 17:44:03,024 INFO L226 Difference]: Without dead ends: 169 [2021-02-23 17:44:03,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3714 ImplicationChecksByTransitivity, 16.1s TimeCoverageRelationStatistics Valid=722, Invalid=21330, Unknown=0, NotChecked=0, Total=22052 [2021-02-23 17:44:03,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-02-23 17:44:03,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-02-23 17:44:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2021-02-23 17:44:03,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 170 transitions. [2021-02-23 17:44:03,069 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 170 transitions. Word has length 243 [2021-02-23 17:44:03,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:44:03,070 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 170 transitions. [2021-02-23 17:44:03,070 INFO L481 AbstractCegarLoop]: Interpolant automaton has 62 states. [2021-02-23 17:44:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 170 transitions. [2021-02-23 17:44:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-02-23 17:44:03,072 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:44:03,072 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 28, 28, 28, 1, 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 17:44:03,072 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-02-23 17:44:03,072 INFO L428 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:44:03,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:44:03,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1677811387, now seen corresponding path program 28 times [2021-02-23 17:44:03,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:44:03,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [625383736] [2021-02-23 17:44:03,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:44:03,076 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:44:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:03,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:03,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:03,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:03,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:44:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,225 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,226 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:03,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:44:03,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,299 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,300 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,317 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:03,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:03,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,417 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,528 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,529 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:03,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,634 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,666 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,667 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,757 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,809 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:03,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:03,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:03,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:03,985 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:04,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:04,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:04,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:04,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:04,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:04,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,500 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:04,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,569 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,571 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:04,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:04,706 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,707 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,782 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,783 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:04,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:04,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:04,987 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:04,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:05,118 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,119 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:05,121 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,122 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,209 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:05,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:05,324 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,326 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:05,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,413 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,414 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:05,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:05,520 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,521 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:05,707 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,708 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:05,709 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,710 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,800 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:05,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:05,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:05,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:05,929 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:06,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,136 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:06,137 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,233 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,235 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:06,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:06,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,461 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,462 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:06,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:06,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,695 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:06,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:06,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,821 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:06,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:06,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:07,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:07,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,191 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:07,323 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,324 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:07,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,448 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:07,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:07,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:07,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:07,856 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,857 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:07,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,859 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:07,995 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:07,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:08,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:08,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:08,161 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,162 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:08,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:08,454 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:08,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,613 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:08,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:08,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,768 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:08,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:08,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:09,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:09,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:09,086 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:09,087 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:09,089 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:44:09,090 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:44:09,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:09,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:09,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:09,433 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:09,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:09,436 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:09,437 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:09,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:09,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1190 trivial. 0 not checked. [2021-02-23 17:44:10,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [625383736] [2021-02-23 17:44:10,541 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:44:10,541 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [] total 64 [2021-02-23 17:44:10,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460401719] [2021-02-23 17:44:10,542 INFO L460 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-02-23 17:44:10,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:44:10,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-02-23 17:44:10,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=3906, Unknown=0, NotChecked=0, Total=4032 [2021-02-23 17:44:10,543 INFO L87 Difference]: Start difference. First operand 169 states and 170 transitions. Second operand 64 states. [2021-02-23 17:44:35,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:44:35,976 INFO L93 Difference]: Finished difference Result 180 states and 181 transitions. [2021-02-23 17:44:35,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-02-23 17:44:35,978 INFO L78 Accepts]: Start accepts. Automaton has 64 states. Word has length 251 [2021-02-23 17:44:35,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:44:35,980 INFO L225 Difference]: With dead ends: 180 [2021-02-23 17:44:35,980 INFO L226 Difference]: Without dead ends: 174 [2021-02-23 17:44:35,983 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3977 ImplicationChecksByTransitivity, 18.5s TimeCoverageRelationStatistics Valid=747, Invalid=22815, Unknown=0, NotChecked=0, Total=23562 [2021-02-23 17:44:35,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-02-23 17:44:36,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2021-02-23 17:44:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2021-02-23 17:44:36,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 175 transitions. [2021-02-23 17:44:36,036 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 175 transitions. Word has length 251 [2021-02-23 17:44:36,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:44:36,036 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 175 transitions. [2021-02-23 17:44:36,036 INFO L481 AbstractCegarLoop]: Interpolant automaton has 64 states. [2021-02-23 17:44:36,036 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 175 transitions. [2021-02-23 17:44:36,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-02-23 17:44:36,038 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:44:36,038 INFO L422 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 29, 29, 1, 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 17:44:36,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-02-23 17:44:36,039 INFO L428 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:44:36,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:44:36,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1253695237, now seen corresponding path program 29 times [2021-02-23 17:44:36,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:44:36,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1025476964] [2021-02-23 17:44:36,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:44:36,043 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:44:36,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,155 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,157 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:36,159 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,160 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:36,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:36,180 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,181 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:36,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:44:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,236 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,237 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:44:36,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:44:36,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:36,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:44:36,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:36,532 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,533 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,558 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:36,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:36,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,643 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,753 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:36,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:36,882 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,883 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:36,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,920 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:36,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,012 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,013 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,055 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,165 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,166 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,167 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,217 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,307 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,361 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,362 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,453 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,453 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,508 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,509 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,604 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,666 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,772 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,841 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,842 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:37,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:37,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:37,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,951 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:37,952 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:37,954 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,033 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,034 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:38,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:38,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:38,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,223 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:38,326 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,327 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:38,331 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,411 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,412 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:38,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:38,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:38,544 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,632 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,633 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:38,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:38,747 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,748 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:38,749 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,843 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,844 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:38,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:38,961 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,963 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:38,964 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:38,966 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:39,186 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,187 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:39,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,297 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,298 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:39,417 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,418 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:39,419 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,420 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:39,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:39,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:39,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:39,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:39,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:39,900 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:39,901 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,018 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:40,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:40,151 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,152 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:40,427 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,428 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:40,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,574 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,575 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:40,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:40,730 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:40,875 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:40,876 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:41,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:41,027 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,028 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,189 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,190 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:41,346 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,347 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:41,348 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,349 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,501 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:41,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:41,664 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,820 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,822 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:41,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:41,989 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,990 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:41,992 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:41,993 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:42,156 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,158 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:42,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:42,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:42,330 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:42,333 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 17:44:42,334 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 17:44:42,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:42,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:44:42,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:44:42,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:42,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:44:42,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:44:42,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:44:43,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1276 trivial. 0 not checked. [2021-02-23 17:44:43,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1025476964] [2021-02-23 17:44:43,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:44:43,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [66] imperfect sequences [] total 66 [2021-02-23 17:44:43,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107033011] [2021-02-23 17:44:43,862 INFO L460 AbstractCegarLoop]: Interpolant automaton has 66 states [2021-02-23 17:44:43,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:44:43,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-02-23 17:44:43,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=4160, Unknown=0, NotChecked=0, Total=4290 [2021-02-23 17:44:43,863 INFO L87 Difference]: Start difference. First operand 174 states and 175 transitions. Second operand 66 states. [2021-02-23 17:45:13,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:45:13,088 INFO L93 Difference]: Finished difference Result 185 states and 186 transitions. [2021-02-23 17:45:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-02-23 17:45:13,091 INFO L78 Accepts]: Start accepts. Automaton has 66 states. Word has length 259 [2021-02-23 17:45:13,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:45:13,093 INFO L225 Difference]: With dead ends: 185 [2021-02-23 17:45:13,093 INFO L226 Difference]: Without dead ends: 179 [2021-02-23 17:45:13,096 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4249 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=772, Invalid=24350, Unknown=0, NotChecked=0, Total=25122 [2021-02-23 17:45:13,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2021-02-23 17:45:13,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-02-23 17:45:13,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2021-02-23 17:45:13,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 180 transitions. [2021-02-23 17:45:13,142 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 180 transitions. Word has length 259 [2021-02-23 17:45:13,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:45:13,142 INFO L480 AbstractCegarLoop]: Abstraction has 179 states and 180 transitions. [2021-02-23 17:45:13,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 66 states. [2021-02-23 17:45:13,142 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 180 transitions. [2021-02-23 17:45:13,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-02-23 17:45:13,144 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:45:13,145 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 30, 30, 30, 1, 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 17:45:13,145 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-02-23 17:45:13,145 INFO L428 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:45:13,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:45:13,145 INFO L82 PathProgramCache]: Analyzing trace with hash 224019205, now seen corresponding path program 30 times [2021-02-23 17:45:13,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:45:13,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301986684] [2021-02-23 17:45:13,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:45:13,149 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:45:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:13,285 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,290 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:45:13,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:45:13,327 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,329 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:45:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:13,397 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,399 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-02-23 17:45:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:13,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,543 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,565 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,566 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:13,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:13,756 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,757 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:13,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:13,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,932 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:13,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:13,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:13,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:14,101 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:14,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,142 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,143 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:14,308 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:14,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,357 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:14,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:14,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:14,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,563 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,565 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:14,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:14,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:14,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,720 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,766 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:14,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,892 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:14,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,895 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:14,954 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:14,956 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:15,093 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:15,097 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,157 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,159 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:15,302 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:15,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,365 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,367 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:15,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:15,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:15,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:15,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:15,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,669 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:15,670 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,734 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:15,858 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,860 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:15,862 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:15,938 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:15,939 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:16,067 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,068 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:16,070 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,143 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,145 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:16,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:16,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:16,264 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,352 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:16,509 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,510 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:16,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,601 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,602 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:16,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,724 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:16,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,818 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:16,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:16,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:16,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:16,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:16,941 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,030 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,031 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:17,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:17,173 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,174 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,276 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:17,398 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:17,402 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,405 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,511 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,512 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:17,630 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,632 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:17,633 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,724 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,726 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:17,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:17,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,833 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:17,933 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:17,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:18,069 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,071 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:18,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:18,329 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,331 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:18,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,459 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:18,585 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:18,589 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,590 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:18,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:18,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:18,946 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:18,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:19,078 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,080 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:19,081 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,083 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:19,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:19,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,355 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:19,357 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,358 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:19,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:19,646 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,647 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,775 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,776 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:19,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:19,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:19,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:19,913 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:19,914 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:45:20,011 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:20,013 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:20,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-02-23 17:45:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:45:20,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:20,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:45:20,152 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:45:20,153 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:45:20,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1365 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1365 trivial. 0 not checked. [2021-02-23 17:45:20,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301986684] [2021-02-23 17:45:20,701 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:45:20,701 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2021-02-23 17:45:20,701 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620881674] [2021-02-23 17:45:20,702 INFO L460 AbstractCegarLoop]: Interpolant automaton has 67 states [2021-02-23 17:45:20,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:45:20,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-02-23 17:45:20,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=972, Invalid=3450, Unknown=0, NotChecked=0, Total=4422 [2021-02-23 17:45:20,703 INFO L87 Difference]: Start difference. First operand 179 states and 180 transitions. Second operand 67 states. [2021-02-23 17:45:39,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:45:39,214 INFO L93 Difference]: Finished difference Result 179 states and 180 transitions. [2021-02-23 17:45:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-02-23 17:45:39,215 INFO L78 Accepts]: Start accepts. Automaton has 67 states. Word has length 267 [2021-02-23 17:45:39,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:45:39,216 INFO L225 Difference]: With dead ends: 179 [2021-02-23 17:45:39,216 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 17:45:39,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3674 ImplicationChecksByTransitivity, 19.9s TimeCoverageRelationStatistics Valid=5221, Invalid=20861, Unknown=0, NotChecked=0, Total=26082 [2021-02-23 17:45:39,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 17:45:39,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 17:45:39,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 17:45:39,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 17:45:39,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 267 [2021-02-23 17:45:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:45:39,219 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 17:45:39,219 INFO L481 AbstractCegarLoop]: Interpolant automaton has 67 states. [2021-02-23 17:45:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 17:45:39,219 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 17:45:39,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-02-23 17:45:39,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 17:45:41,521 WARN L202 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 1867 DAG size of output: 157 [2021-02-23 17:45:41,667 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 1432 [2021-02-23 17:45:43,215 WARN L202 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 1805 DAG size of output: 156 [2021-02-23 17:45:46,122 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 3087 DAG size of output: 245 [2021-02-23 17:45:46,291 WARN L202 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 2652 [2021-02-23 17:45:47,727 WARN L202 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 1867 DAG size of output: 157 [2021-02-23 17:45:47,857 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 1432 [2021-02-23 17:45:48,920 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 1805 DAG size of output: 156 [2021-02-23 17:45:49,030 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 1399 [2021-02-23 17:45:50,522 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 1455 DAG size of output: 20 [2021-02-23 17:45:50,934 WARN L202 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 13 [2021-02-23 17:45:51,223 WARN L202 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 9 [2021-02-23 17:45:51,534 WARN L202 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 9 [2021-02-23 17:45:52,773 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1421 DAG size of output: 21 [2021-02-23 17:45:54,478 WARN L202 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 2674 DAG size of output: 32 [2021-02-23 17:45:55,661 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 1455 DAG size of output: 20 [2021-02-23 17:45:56,797 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1421 DAG size of output: 21 [2021-02-23 17:45:57,074 WARN L202 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 9 [2021-02-23 17:45:57,080 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 17:45:57,080 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 17:45:57,080 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,081 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,082 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 17:45:57,082 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,082 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 17:45:57,082 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,082 INFO L185 CegarLoopUtils]: At program point hanoiEXIT(lines 18 23) the Hoare annotation is: (let ((.cse1 (= |hanoi_#res| 1))) (and (let ((.cse0 (= hanoi_~n |hanoi_#in~n|))) (or (and .cse0 .cse1) (and .cse0 (<= 2147483647 |hanoi_#res|)) (and .cse0 (<= (+ |hanoi_#in~n| 1) |hanoi_#res|)))) (or (and (= |hanoi_#in~n| 1) .cse1) (<= 3 |hanoi_#res|)))) [2021-02-23 17:45:57,082 INFO L192 CegarLoopUtils]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point hanoiFINAL(lines 18 23) the Hoare annotation is: (let ((.cse1 (= |hanoi_#res| 1))) (and (let ((.cse0 (= hanoi_~n |hanoi_#in~n|))) (or (and .cse0 .cse1) (and .cse0 (<= 2147483647 |hanoi_#res|)) (and .cse0 (<= (+ |hanoi_#in~n| 1) |hanoi_#res|)))) (or (and (= |hanoi_#in~n| 1) .cse1) (<= 3 |hanoi_#res|)))) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L22(line 22) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L22-1(line 22) the Hoare annotation is: (and (let ((.cse0 (= hanoi_~n |hanoi_#in~n|))) (or (and (<= |hanoi_#in~n| 2) .cse0) (and .cse0 (<= 1073741823 |hanoi_#t~ret7|)) (and .cse0 (<= (+ |hanoi_#in~n| 3) (* 2 |hanoi_#t~ret7|))))) (or (<= 3 |hanoi_#t~ret7|) (= |hanoi_#t~ret7| 1))) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L20(line 20) the Hoare annotation is: (and (= |hanoi_#in~n| 1) (= hanoi_~n |hanoi_#in~n|)) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L22-2(line 22) the Hoare annotation is: (and (let ((.cse0 (= hanoi_~n |hanoi_#in~n|))) (or (and (<= |hanoi_#in~n| 2) .cse0) (and .cse0 (<= 1073741823 |hanoi_#t~ret7|)) (and .cse0 (<= (+ |hanoi_#in~n| 3) (* 2 |hanoi_#t~ret7|))))) (or (<= 3 |hanoi_#t~ret7|) (= |hanoi_#t~ret7| 1))) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L19(lines 19 21) the Hoare annotation is: (= hanoi_~n |hanoi_#in~n|) [2021-02-23 17:45:57,083 INFO L185 CegarLoopUtils]: At program point L22-3(line 22) the Hoare annotation is: (and (or (and (= |hanoi_#t~ret7| 1) (<= 3 |hanoi_#res|)) (and (<= 3 |hanoi_#t~ret7|) (<= 7 |hanoi_#res|))) (let ((.cse0 (= hanoi_~n |hanoi_#in~n|))) (or (and (<= |hanoi_#in~n| 2) .cse0) (and .cse0 (<= 1073741823 |hanoi_#t~ret7|) (<= 2147483647 |hanoi_#res|)) (and .cse0 (<= (+ |hanoi_#in~n| 4) |hanoi_#res|) (<= (+ |hanoi_#in~n| 3) (* 2 |hanoi_#t~ret7|)))))) [2021-02-23 17:45:57,083 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,083 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,084 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,084 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 17:45:57,084 INFO L192 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: true [2021-02-23 17:45:57,084 INFO L185 CegarLoopUtils]: At program point L32(lines 32 36) the Hoare annotation is: (or (and (= main_~result~0 1) (<= main_~n~0 1)) (<= (+ main_~n~0 1) main_~result~0)) [2021-02-23 17:45:57,084 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) the Hoare annotation is: false [2021-02-23 17:45:57,084 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (<= main_~n~0 31) [2021-02-23 17:45:57,084 INFO L185 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (or (<= (+ main_~n~0 1) |main_#t~ret9|) (and (<= main_~n~0 1) (= |main_#t~ret9| 1))) [2021-02-23 17:45:57,084 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 26 37) the Hoare annotation is: true [2021-02-23 17:45:57,084 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: (or (<= (+ main_~n~0 1) |main_#t~ret9|) (and (<= main_~n~0 1) (= |main_#t~ret9| 1))) [2021-02-23 17:45:57,085 INFO L192 CegarLoopUtils]: At program point L28(lines 28 30) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L185 CegarLoopUtils]: At program point L31-3(line 31) the Hoare annotation is: (or (and (= main_~result~0 1) (<= main_~n~0 1) (= |main_#t~ret9| 1)) (let ((.cse0 (+ main_~n~0 1))) (and (<= .cse0 |main_#t~ret9|) (<= .cse0 main_~result~0)))) [2021-02-23 17:45:57,085 INFO L192 CegarLoopUtils]: At program point L27(line 27) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L192 CegarLoopUtils]: At program point L27-1(line 27) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 26 37) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 26 37) the Hoare annotation is: true [2021-02-23 17:45:57,085 INFO L185 CegarLoopUtils]: At program point L35(line 35) the Hoare annotation is: false [2021-02-23 17:45:57,085 INFO L185 CegarLoopUtils]: At program point L35-1(line 35) the Hoare annotation is: false [2021-02-23 17:45:57,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:45:57 BoogieIcfgContainer [2021-02-23 17:45:57,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:45:57,107 INFO L168 Benchmark]: Toolchain (without parser) took 359141.06 ms. Allocated memory was 151.0 MB in the beginning and 666.9 MB in the end (delta: 515.9 MB). Free memory was 127.5 MB in the beginning and 476.4 MB in the end (delta: -348.9 MB). Peak memory consumption was 447.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:45:57,107 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:45:57,107 INFO L168 Benchmark]: CACSL2BoogieTranslator took 230.20 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:45:57,108 INFO L168 Benchmark]: Boogie Preprocessor took 29.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 17:45:57,108 INFO L168 Benchmark]: RCFGBuilder took 490.16 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 134.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:45:57,108 INFO L168 Benchmark]: TraceAbstraction took 358365.29 ms. Allocated memory was 151.0 MB in the beginning and 666.9 MB in the end (delta: 515.9 MB). Free memory was 134.1 MB in the beginning and 476.4 MB in the end (delta: -342.3 MB). Peak memory consumption was 453.1 MB. Max. memory is 8.0 GB. [2021-02-23 17:45:57,108 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory is still 125.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 230.20 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.24 ms. Allocated memory is still 151.0 MB. Free memory was 117.1 MB in the beginning and 115.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 490.16 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 134.3 MB in the end (delta: -18.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 358365.29 ms. Allocated memory was 151.0 MB in the beginning and 666.9 MB in the end (delta: 515.9 MB). Free memory was 134.1 MB in the beginning and 476.4 MB in the end (delta: -342.3 MB). Peak memory consumption was 453.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 18]: Procedure Contract for hanoi Derived contract for procedure hanoi: (((n == \old(n) && \result == 1) || (n == \old(n) && 2147483647 <= \result)) || (n == \old(n) && \old(n) + 1 <= \result)) && ((\old(n) == 1 && \result == 1) || 3 <= \result) - ProcedureContractResult [Line: 26]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 340.3s, OverallIterations: 31, TraceHistogramMax: 31, AutomataDifference: 262.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 17.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1685 SDtfs, 4909 SDslu, 12297 SDs, 0 SdLazy, 111072 SolverSat, 1086 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 69.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3750 GetRequests, 1055 SyntacticMatches, 0 SemanticMatches, 2695 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49364 ImplicationChecksByTransitivity, 198.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 31 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 48 PreInvPairs, 2586 NumberOfFragments, 323 HoareAnnotationTreeSize, 48 FomulaSimplifications, 266288 FormulaSimplificationTreeSizeReduction, 9.8s HoareSimplificationTime, 39 FomulaSimplificationsInter, 34249 FormulaSimplificationTreeSizeReductionInter, 7.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...