/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/Ackermann04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 17:38:47,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 17:38:47,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 17:38:47,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 17:38:47,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 17:38:47,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 17:38:47,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 17:38:47,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 17:38:47,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 17:38:47,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 17:38:47,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 17:38:47,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 17:38:47,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 17:38:47,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 17:38:47,417 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 17:38:47,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 17:38:47,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 17:38:47,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 17:38:47,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 17:38:47,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 17:38:47,445 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 17:38:47,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 17:38:47,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 17:38:47,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 17:38:47,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 17:38:47,474 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 17:38:47,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 17:38:47,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 17:38:47,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 17:38:47,475 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 17:38:47,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 17:38:47,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 17:38:47,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 17:38:47,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 17:38:47,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 17:38:47,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 17:38:47,479 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 17:38:47,479 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 17:38:47,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 17:38:47,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 17:38:47,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 17:38:47,480 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 17:38:47,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 17:38:47,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 17:38:47,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 17:38:47,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 17:38:47,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 17:38:47,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 17:38:47,950 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 17:38:47,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann04.c [2021-02-23 17:38:48,033 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb91b97d4/24bb5f400bfb48e09193f7172e19c931/FLAG551bffa80 [2021-02-23 17:38:48,723 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 17:38:48,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann04.c [2021-02-23 17:38:48,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb91b97d4/24bb5f400bfb48e09193f7172e19c931/FLAG551bffa80 [2021-02-23 17:38:49,109 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb91b97d4/24bb5f400bfb48e09193f7172e19c931 [2021-02-23 17:38:49,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 17:38:49,126 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 17:38:49,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:49,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 17:38:49,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 17:38:49,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1b1b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49, skipping insertion in model container [2021-02-23 17:38:49,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,143 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 17:38:49,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 17:38:49,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann04.c[1166,1179] [2021-02-23 17:38:49,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:49,328 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 17:38:49,345 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann04.c[1166,1179] [2021-02-23 17:38:49,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 17:38:49,362 INFO L208 MainTranslator]: Completed translation [2021-02-23 17:38:49,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49 WrapperNode [2021-02-23 17:38:49,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 17:38:49,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 17:38:49,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 17:38:49,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 17:38:49,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (1/1) ... [2021-02-23 17:38:49,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 17:38:49,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 17:38:49,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 17:38:49,398 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 17:38:49,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (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 17:38:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 17:38:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 17:38:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 17:38:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2021-02-23 17:38:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 17:38:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 17:38:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 17:38:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 17:38:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 17:38:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 17:38:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2021-02-23 17:38:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 17:38:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 17:38:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 17:38:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 17:38:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 17:38:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 17:38:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 17:38:49,788 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 17:38:49,789 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 17:38:49,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:49 BoogieIcfgContainer [2021-02-23 17:38:49,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 17:38:49,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 17:38:49,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 17:38:49,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 17:38:49,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 05:38:49" (1/3) ... [2021-02-23 17:38:49,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116abd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:49, skipping insertion in model container [2021-02-23 17:38:49,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 05:38:49" (2/3) ... [2021-02-23 17:38:49,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@116abd6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 05:38:49, skipping insertion in model container [2021-02-23 17:38:49,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 05:38:49" (3/3) ... [2021-02-23 17:38:49,802 INFO L111 eAbstractionObserver]: Analyzing ICFG Ackermann04.c [2021-02-23 17:38:49,810 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 17:38:49,815 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 17:38:49,884 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 17:38:49,968 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 17:38:49,968 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 17:38:49,969 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-23 17:38:49,969 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 17:38:49,970 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 17:38:49,971 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 17:38:49,971 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 17:38:49,971 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 17:38:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2021-02-23 17:38:49,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-02-23 17:38:50,000 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:50,001 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:50,001 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:50,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:50,012 INFO L82 PathProgramCache]: Analyzing trace with hash 305373308, now seen corresponding path program 1 times [2021-02-23 17:38:50,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:50,031 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [692970876] [2021-02-23 17:38:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:50,119 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:50,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,337 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:50,339 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,340 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:50,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:50,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:50,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,416 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:50,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:50,441 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:50,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:50,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:50,466 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 17:38:50,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [692970876] [2021-02-23 17:38:50,470 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:50,470 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 17:38:50,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439617609] [2021-02-23 17:38:50,476 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 17:38:50,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:50,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 17:38:50,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 17:38:50,495 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 6 states. [2021-02-23 17:38:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:50,915 INFO L93 Difference]: Finished difference Result 97 states and 119 transitions. [2021-02-23 17:38:50,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 17:38:50,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2021-02-23 17:38:50,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:50,928 INFO L225 Difference]: With dead ends: 97 [2021-02-23 17:38:50,928 INFO L226 Difference]: Without dead ends: 53 [2021-02-23 17:38:50,933 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-23 17:38:50,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-02-23 17:38:50,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-02-23 17:38:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2021-02-23 17:38:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2021-02-23 17:38:50,992 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 32 [2021-02-23 17:38:50,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:50,993 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2021-02-23 17:38:50,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 17:38:50,993 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2021-02-23 17:38:50,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-02-23 17:38:50,997 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:50,997 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:50,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 17:38:50,998 INFO L428 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:50,999 INFO L82 PathProgramCache]: Analyzing trace with hash -40053035, now seen corresponding path program 1 times [2021-02-23 17:38:50,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:50,999 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71525084] [2021-02-23 17:38:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:51,003 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,054 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,054 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,058 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,059 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,112 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,113 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,113 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,114 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,134 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-23 17:38:51,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71525084] [2021-02-23 17:38:51,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:51,141 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 17:38:51,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030198573] [2021-02-23 17:38:51,142 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 17:38:51,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:51,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 17:38:51,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 17:38:51,143 INFO L87 Difference]: Start difference. First operand 53 states and 60 transitions. Second operand 6 states. [2021-02-23 17:38:51,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:51,412 INFO L93 Difference]: Finished difference Result 91 states and 116 transitions. [2021-02-23 17:38:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 17:38:51,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2021-02-23 17:38:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:51,416 INFO L225 Difference]: With dead ends: 91 [2021-02-23 17:38:51,416 INFO L226 Difference]: Without dead ends: 55 [2021-02-23 17:38:51,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-02-23 17:38:51,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-02-23 17:38:51,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-02-23 17:38:51,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2021-02-23 17:38:51,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2021-02-23 17:38:51,440 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 42 [2021-02-23 17:38:51,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:51,441 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2021-02-23 17:38:51,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 17:38:51,441 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2021-02-23 17:38:51,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-02-23 17:38:51,444 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:51,444 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:51,445 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 17:38:51,445 INFO L428 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:51,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:51,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1101309652, now seen corresponding path program 1 times [2021-02-23 17:38:51,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:51,446 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [193329697] [2021-02-23 17:38:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:51,449 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,537 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,538 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:51,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,669 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,672 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,673 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,674 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,680 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:51,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,721 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,722 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,723 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,723 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:51,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,750 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:51,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:51,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:51,761 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:51,773 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-02-23 17:38:51,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [193329697] [2021-02-23 17:38:51,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:51,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 17:38:51,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693766604] [2021-02-23 17:38:51,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 17:38:51,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:51,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 17:38:51,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 17:38:51,780 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand 7 states. [2021-02-23 17:38:52,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:52,176 INFO L93 Difference]: Finished difference Result 83 states and 105 transitions. [2021-02-23 17:38:52,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 17:38:52,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2021-02-23 17:38:52,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:52,180 INFO L225 Difference]: With dead ends: 83 [2021-02-23 17:38:52,180 INFO L226 Difference]: Without dead ends: 77 [2021-02-23 17:38:52,181 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 17:38:52,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-02-23 17:38:52,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-02-23 17:38:52,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2021-02-23 17:38:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 99 transitions. [2021-02-23 17:38:52,215 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 99 transitions. Word has length 61 [2021-02-23 17:38:52,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:52,216 INFO L480 AbstractCegarLoop]: Abstraction has 77 states and 99 transitions. [2021-02-23 17:38:52,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 17:38:52,216 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 99 transitions. [2021-02-23 17:38:52,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-02-23 17:38:52,220 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:52,220 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:52,220 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 17:38:52,221 INFO L428 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:52,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:52,221 INFO L82 PathProgramCache]: Analyzing trace with hash 697726399, now seen corresponding path program 2 times [2021-02-23 17:38:52,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:52,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1838841395] [2021-02-23 17:38:52,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:52,224 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:52,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,302 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:52,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:52,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,382 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,395 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,396 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 17:38:52,405 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,406 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:52,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,431 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,431 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,438 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:52,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,442 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,442 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,449 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,449 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,451 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:52,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:38:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:52,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:52,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:52,480 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-02-23 17:38:52,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1838841395] [2021-02-23 17:38:52,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:52,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-02-23 17:38:52,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671123916] [2021-02-23 17:38:52,482 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 17:38:52,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:52,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 17:38:52,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-02-23 17:38:52,483 INFO L87 Difference]: Start difference. First operand 77 states and 99 transitions. Second operand 8 states. [2021-02-23 17:38:52,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:52,990 INFO L93 Difference]: Finished difference Result 115 states and 167 transitions. [2021-02-23 17:38:52,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-23 17:38:52,991 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 80 [2021-02-23 17:38:52,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:52,997 INFO L225 Difference]: With dead ends: 115 [2021-02-23 17:38:52,998 INFO L226 Difference]: Without dead ends: 109 [2021-02-23 17:38:52,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-02-23 17:38:52,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-02-23 17:38:53,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-02-23 17:38:53,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-02-23 17:38:53,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 161 transitions. [2021-02-23 17:38:53,061 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 161 transitions. Word has length 80 [2021-02-23 17:38:53,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:53,064 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 161 transitions. [2021-02-23 17:38:53,064 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 17:38:53,066 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 161 transitions. [2021-02-23 17:38:53,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-02-23 17:38:53,075 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:53,075 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:53,076 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 17:38:53,078 INFO L428 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:53,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1386789945, now seen corresponding path program 3 times [2021-02-23 17:38:53,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:53,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2123525380] [2021-02-23 17:38:53,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:53,087 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,219 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,219 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,220 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,221 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,260 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:53,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,351 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,353 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,354 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,363 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,364 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,414 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,415 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,416 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,419 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,426 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,450 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,450 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,451 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,452 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,460 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,461 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,483 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,484 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,485 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,494 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,495 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,512 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,513 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,514 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,514 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,541 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,542 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,545 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:38:53,546 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:38:53,560 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,561 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:38:53,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,583 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,584 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,584 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,585 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,597 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:38:53,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:38:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,625 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,625 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,626 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,627 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,645 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-02-23 17:38:53,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,661 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,661 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,663 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,663 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,664 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:53,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:53,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:53,668 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:53,668 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:53,714 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-02-23 17:38:53,714 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2123525380] [2021-02-23 17:38:53,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:53,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-23 17:38:53,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552719796] [2021-02-23 17:38:53,715 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-23 17:38:53,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:53,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-23 17:38:53,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-02-23 17:38:53,716 INFO L87 Difference]: Start difference. First operand 109 states and 161 transitions. Second operand 16 states. [2021-02-23 17:38:56,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:56,190 INFO L93 Difference]: Finished difference Result 399 states and 948 transitions. [2021-02-23 17:38:56,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-02-23 17:38:56,190 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 129 [2021-02-23 17:38:56,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:56,211 INFO L225 Difference]: With dead ends: 399 [2021-02-23 17:38:56,211 INFO L226 Difference]: Without dead ends: 311 [2021-02-23 17:38:56,217 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=482, Invalid=1680, Unknown=0, NotChecked=0, Total=2162 [2021-02-23 17:38:56,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-02-23 17:38:56,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 176. [2021-02-23 17:38:56,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2021-02-23 17:38:56,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 334 transitions. [2021-02-23 17:38:56,353 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 334 transitions. Word has length 129 [2021-02-23 17:38:56,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:56,356 INFO L480 AbstractCegarLoop]: Abstraction has 176 states and 334 transitions. [2021-02-23 17:38:56,356 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-23 17:38:56,356 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 334 transitions. [2021-02-23 17:38:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-02-23 17:38:56,373 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:56,373 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 19, 12, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:56,373 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 17:38:56,374 INFO L428 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:56,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash 2098452402, now seen corresponding path program 4 times [2021-02-23 17:38:56,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:56,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1033452203] [2021-02-23 17:38:56,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:56,380 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,490 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,491 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,579 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,596 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,597 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,616 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,620 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,620 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,624 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:38:56,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,640 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,641 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,643 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:56,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,654 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 17:38:56,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-02-23 17:38:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,688 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,698 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,699 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,699 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,700 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 17:38:56,705 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,705 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,710 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,711 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:56,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,717 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:56,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-02-23 17:38:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:56,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:56,731 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:56,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:56,799 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 22 proven. 3 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2021-02-23 17:38:56,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1033452203] [2021-02-23 17:38:56,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:56,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-02-23 17:38:56,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570236754] [2021-02-23 17:38:56,800 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-02-23 17:38:56,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:56,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-02-23 17:38:56,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-02-23 17:38:56,801 INFO L87 Difference]: Start difference. First operand 176 states and 334 transitions. Second operand 6 states. [2021-02-23 17:38:57,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:38:57,026 INFO L93 Difference]: Finished difference Result 257 states and 536 transitions. [2021-02-23 17:38:57,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-02-23 17:38:57,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 206 [2021-02-23 17:38:57,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:38:57,029 INFO L225 Difference]: With dead ends: 257 [2021-02-23 17:38:57,029 INFO L226 Difference]: Without dead ends: 102 [2021-02-23 17:38:57,033 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2021-02-23 17:38:57,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-02-23 17:38:57,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2021-02-23 17:38:57,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2021-02-23 17:38:57,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 139 transitions. [2021-02-23 17:38:57,056 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 139 transitions. Word has length 206 [2021-02-23 17:38:57,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:38:57,057 INFO L480 AbstractCegarLoop]: Abstraction has 102 states and 139 transitions. [2021-02-23 17:38:57,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-02-23 17:38:57,057 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 139 transitions. [2021-02-23 17:38:57,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-02-23 17:38:57,060 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:38:57,060 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:38:57,060 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 17:38:57,061 INFO L428 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:38:57,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:38:57,061 INFO L82 PathProgramCache]: Analyzing trace with hash 2010304395, now seen corresponding path program 5 times [2021-02-23 17:38:57,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:38:57,061 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [65992552] [2021-02-23 17:38:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:38:57,064 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:38:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:38:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:38:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,178 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,178 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,179 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,179 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,206 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,206 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,213 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,242 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,244 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,244 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,253 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,253 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,273 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,273 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,274 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,275 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,284 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,284 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,301 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,303 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,303 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,315 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,336 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:38:57,337 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:38:57,353 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,354 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:38:57,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:57,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,377 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,378 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,393 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,394 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:38:57,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:38:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,429 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,430 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,430 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,439 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,441 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,464 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,465 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,466 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,491 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,492 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-02-23 17:38:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,515 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,516 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,516 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,517 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,517 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,518 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,525 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,526 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,526 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,527 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:38:57,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:38:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,530 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,531 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:38:57,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:38:57,535 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:38:57,536 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:38:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 34 proven. 42 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-02-23 17:38:57,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [65992552] [2021-02-23 17:38:57,588 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:38:57,588 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-23 17:38:57,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548712508] [2021-02-23 17:38:57,589 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 17:38:57,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:38:57,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 17:38:57,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-02-23 17:38:57,590 INFO L87 Difference]: Start difference. First operand 102 states and 139 transitions. Second operand 17 states. [2021-02-23 17:39:00,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:00,329 INFO L93 Difference]: Finished difference Result 239 states and 431 transitions. [2021-02-23 17:39:00,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-02-23 17:39:00,330 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 167 [2021-02-23 17:39:00,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:00,334 INFO L225 Difference]: With dead ends: 239 [2021-02-23 17:39:00,335 INFO L226 Difference]: Without dead ends: 156 [2021-02-23 17:39:00,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=705, Invalid=2265, Unknown=0, NotChecked=0, Total=2970 [2021-02-23 17:39:00,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-02-23 17:39:00,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 118. [2021-02-23 17:39:00,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2021-02-23 17:39:00,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 157 transitions. [2021-02-23 17:39:00,366 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 157 transitions. Word has length 167 [2021-02-23 17:39:00,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:00,367 INFO L480 AbstractCegarLoop]: Abstraction has 118 states and 157 transitions. [2021-02-23 17:39:00,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 17:39:00,367 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2021-02-23 17:39:00,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2021-02-23 17:39:00,371 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:00,372 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 15, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:00,372 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 17:39:00,372 INFO L428 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:00,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:00,373 INFO L82 PathProgramCache]: Analyzing trace with hash -241636117, now seen corresponding path program 6 times [2021-02-23 17:39:00,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:00,373 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442845088] [2021-02-23 17:39:00,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:00,377 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,456 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,482 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,483 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:39:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,547 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,549 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,549 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,582 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,582 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,588 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,589 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,605 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,607 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,607 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,608 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,613 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,614 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,636 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,644 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,653 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,659 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,659 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,662 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,662 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,672 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,673 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,688 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,690 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:39:00,690 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:39:00,703 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,704 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:39:00,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,728 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,729 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:00,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:00,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,802 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,803 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,832 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,832 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,833 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,834 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,860 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,862 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,864 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,864 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:00,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,887 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,894 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,894 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,912 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,913 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-23 17:39:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 17:39:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,980 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,980 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,988 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,989 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:00,994 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:00,995 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:00,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,002 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,002 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,007 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,009 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,010 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:01,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,014 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,021 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-02-23 17:39:01,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:01,032 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:01,033 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 23 proven. 128 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2021-02-23 17:39:01,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442845088] [2021-02-23 17:39:01,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:01,159 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-02-23 17:39:01,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589845744] [2021-02-23 17:39:01,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-23 17:39:01,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:01,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-23 17:39:01,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-02-23 17:39:01,160 INFO L87 Difference]: Start difference. First operand 118 states and 157 transitions. Second operand 17 states. [2021-02-23 17:39:04,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:04,479 INFO L93 Difference]: Finished difference Result 277 states and 471 transitions. [2021-02-23 17:39:04,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-02-23 17:39:04,480 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 263 [2021-02-23 17:39:04,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:04,484 INFO L225 Difference]: With dead ends: 277 [2021-02-23 17:39:04,484 INFO L226 Difference]: Without dead ends: 176 [2021-02-23 17:39:04,488 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 945 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=889, Invalid=2893, Unknown=0, NotChecked=0, Total=3782 [2021-02-23 17:39:04,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-02-23 17:39:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 136. [2021-02-23 17:39:04,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2021-02-23 17:39:04,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 186 transitions. [2021-02-23 17:39:04,522 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 186 transitions. Word has length 263 [2021-02-23 17:39:04,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:04,523 INFO L480 AbstractCegarLoop]: Abstraction has 136 states and 186 transitions. [2021-02-23 17:39:04,523 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2021-02-23 17:39:04,523 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 186 transitions. [2021-02-23 17:39:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-02-23 17:39:04,527 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:04,528 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 23, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:04,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 17:39:04,528 INFO L428 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:04,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:04,529 INFO L82 PathProgramCache]: Analyzing trace with hash 465788811, now seen corresponding path program 7 times [2021-02-23 17:39:04,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:04,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [22107153] [2021-02-23 17:39:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:04,532 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,609 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,610 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,611 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,642 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,644 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:39:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,763 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,764 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,822 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,824 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,835 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,855 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,856 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,863 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,863 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,869 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,872 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,873 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,886 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,887 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,934 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,935 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,947 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,948 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,949 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,949 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:04,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:04,970 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,971 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,983 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,984 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:04,996 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:04,997 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,022 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,023 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,024 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,040 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,041 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,052 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,053 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,071 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,072 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,073 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,085 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,086 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,105 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,106 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,107 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:39:05,108 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:39:05,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,128 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:39:05,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,153 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,154 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,154 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,155 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,170 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,170 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:05,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,193 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,194 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,195 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,195 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,196 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,197 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,208 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,209 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,210 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:05,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 17:39:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,249 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,251 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,278 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,304 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,305 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,305 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,306 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,306 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,309 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,333 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,333 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,334 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,334 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,335 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:05,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,356 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,356 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,360 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,360 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:05,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,364 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,365 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:05,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:05,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:05,371 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:05,479 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 93 proven. 69 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-02-23 17:39:05,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [22107153] [2021-02-23 17:39:05,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:05,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-02-23 17:39:05,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916652297] [2021-02-23 17:39:05,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-02-23 17:39:05,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:05,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-02-23 17:39:05,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2021-02-23 17:39:05,481 INFO L87 Difference]: Start difference. First operand 136 states and 186 transitions. Second operand 23 states. [2021-02-23 17:39:13,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:13,290 INFO L93 Difference]: Finished difference Result 401 states and 704 transitions. [2021-02-23 17:39:13,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-02-23 17:39:13,291 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 243 [2021-02-23 17:39:13,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:13,298 INFO L225 Difference]: With dead ends: 401 [2021-02-23 17:39:13,299 INFO L226 Difference]: Without dead ends: 286 [2021-02-23 17:39:13,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4308 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2660, Invalid=11382, Unknown=0, NotChecked=0, Total=14042 [2021-02-23 17:39:13,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-02-23 17:39:13,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 166. [2021-02-23 17:39:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2021-02-23 17:39:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 247 transitions. [2021-02-23 17:39:13,362 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 247 transitions. Word has length 243 [2021-02-23 17:39:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:13,362 INFO L480 AbstractCegarLoop]: Abstraction has 166 states and 247 transitions. [2021-02-23 17:39:13,362 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2021-02-23 17:39:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 247 transitions. [2021-02-23 17:39:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-02-23 17:39:13,368 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:13,368 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 25, 14, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:13,368 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 17:39:13,368 INFO L428 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:13,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:13,369 INFO L82 PathProgramCache]: Analyzing trace with hash 437568672, now seen corresponding path program 8 times [2021-02-23 17:39:13,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:13,369 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [700564410] [2021-02-23 17:39:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:13,372 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,456 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,457 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,457 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:13,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,486 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,487 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:39:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,586 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,586 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,587 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,591 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,592 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,654 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,655 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,656 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,657 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,665 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,665 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,678 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,681 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,687 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,687 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,690 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,691 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,693 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,694 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:13,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,697 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,697 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,726 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,727 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,727 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,728 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,740 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,741 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,742 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,759 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,779 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,780 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,790 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,791 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,801 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,801 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,818 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,820 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,831 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,848 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,849 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:39:13,850 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:39:13,865 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,866 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:39:13,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,889 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,889 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,890 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,890 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,903 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,904 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:13,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,926 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:13,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,935 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,936 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,936 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,937 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,937 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,938 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:13,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 17:39:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:13,976 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:13,977 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,977 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,978 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:13,978 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:13,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:14,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,015 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,015 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,016 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,016 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,017 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,017 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:14,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,045 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,046 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,046 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,047 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,073 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,074 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,074 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,075 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,075 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,076 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:14,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,102 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,103 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,103 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,104 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,104 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:14,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,127 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,138 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,138 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:14,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,148 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,149 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 17:39:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:14,163 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:14,163 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:14,378 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 109 proven. 81 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2021-02-23 17:39:14,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [700564410] [2021-02-23 17:39:14,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:14,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-02-23 17:39:14,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660294301] [2021-02-23 17:39:14,380 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-02-23 17:39:14,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:14,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-02-23 17:39:14,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-02-23 17:39:14,383 INFO L87 Difference]: Start difference. First operand 166 states and 247 transitions. Second operand 24 states. [2021-02-23 17:39:22,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:22,874 INFO L93 Difference]: Finished difference Result 455 states and 855 transitions. [2021-02-23 17:39:22,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-02-23 17:39:22,878 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 262 [2021-02-23 17:39:22,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:22,887 INFO L225 Difference]: With dead ends: 455 [2021-02-23 17:39:22,888 INFO L226 Difference]: Without dead ends: 310 [2021-02-23 17:39:22,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5009 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2976, Invalid=13026, Unknown=0, NotChecked=0, Total=16002 [2021-02-23 17:39:22,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-02-23 17:39:22,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 200. [2021-02-23 17:39:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2021-02-23 17:39:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 316 transitions. [2021-02-23 17:39:22,961 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 316 transitions. Word has length 262 [2021-02-23 17:39:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:22,962 INFO L480 AbstractCegarLoop]: Abstraction has 200 states and 316 transitions. [2021-02-23 17:39:22,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 24 states. [2021-02-23 17:39:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 316 transitions. [2021-02-23 17:39:22,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-02-23 17:39:22,969 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 17:39:22,969 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 27, 15, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 17:39:22,969 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 17:39:22,969 INFO L428 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 17:39:22,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 17:39:22,970 INFO L82 PathProgramCache]: Analyzing trace with hash 1442041525, now seen corresponding path program 9 times [2021-02-23 17:39:22,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 17:39:22,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [703181151] [2021-02-23 17:39:22,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 17:39:22,974 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-23 17:39:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,087 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,088 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,090 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,091 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,094 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,099 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,100 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 17:39:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,131 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,132 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-02-23 17:39:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,227 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,239 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,240 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,265 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,270 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,271 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,279 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,282 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,283 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:23,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,293 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-02-23 17:39:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,309 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,310 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,316 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,321 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,322 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,325 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,325 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,328 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,328 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,332 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,332 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:23,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,335 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,336 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:23,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,341 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-02-23 17:39:23,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,390 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,391 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,391 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,392 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,424 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,424 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,425 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,425 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,435 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,445 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,446 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,472 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,473 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,473 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,474 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,484 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,485 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,497 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,498 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,523 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,524 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,538 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,553 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,553 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,577 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,578 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,578 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,579 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,594 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,611 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,635 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,636 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,652 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,653 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-02-23 17:39:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,677 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,679 WARN L141 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size [2021-02-23 17:39:23,680 WARN L147 QuantifierPusher]: treesize reduction 7, result has 50.0 percent of original size 7 [2021-02-23 17:39:23,701 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,702 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 17:39:23,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-02-23 17:39:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,735 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,735 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,736 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,736 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,754 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:23,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-02-23 17:39:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,786 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,788 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,788 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,789 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-02-23 17:39:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,797 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,797 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,798 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,799 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:23,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 17:39:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,811 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,811 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,812 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,812 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,813 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:23,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-02-23 17:39:23,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 17:39:23,828 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,829 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 17:39:23,829 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,830 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 17:39:23,830 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 17:39:23,831 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 17:39:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2021-02-23 17:39:23,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [703181151] [2021-02-23 17:39:23,981 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 17:39:23,981 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2021-02-23 17:39:23,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179512550] [2021-02-23 17:39:23,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-02-23 17:39:23,982 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 17:39:23,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-02-23 17:39:23,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2021-02-23 17:39:23,985 INFO L87 Difference]: Start difference. First operand 200 states and 316 transitions. Second operand 26 states. [2021-02-23 17:39:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 17:39:29,907 INFO L93 Difference]: Finished difference Result 430 states and 649 transitions. [2021-02-23 17:39:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-02-23 17:39:29,907 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 281 [2021-02-23 17:39:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 17:39:29,910 INFO L225 Difference]: With dead ends: 430 [2021-02-23 17:39:29,910 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 17:39:29,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2663 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=2242, Invalid=8678, Unknown=0, NotChecked=0, Total=10920 [2021-02-23 17:39:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 17:39:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 17:39:29,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 17:39:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 17:39:29,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 281 [2021-02-23 17:39:29,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 17:39:29,925 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 17:39:29,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 26 states. [2021-02-23 17:39:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 17:39:29,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 17:39:29,925 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 17:39:29,928 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 17:39:35,259 WARN L202 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:35,472 WARN L202 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:35,700 WARN L202 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:35,935 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:36,052 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:36,281 WARN L202 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:36,398 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:36,592 WARN L202 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:36,727 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:36,843 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:36,968 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:37,093 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:37,340 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:37,610 WARN L202 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 102 [2021-02-23 17:39:37,782 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:37,908 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-23 17:39:38,057 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:38,221 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 115 [2021-02-23 17:39:38,418 WARN L202 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:38,542 WARN L202 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-23 17:39:38,683 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:38,796 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:38,905 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:39,020 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:39,569 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-23 17:39:39,869 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:39,993 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-23 17:39:40,216 WARN L202 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:40,434 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:40,603 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:40,736 WARN L202 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:41,011 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:41,130 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:41,252 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:41,433 WARN L202 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 113 [2021-02-23 17:39:41,550 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:41,700 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:41,810 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:41,929 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:42,047 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:42,153 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:42,256 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:42,370 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:42,483 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:42,647 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:42,768 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:42,886 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:43,007 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:43,134 WARN L202 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 112 [2021-02-23 17:39:43,262 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:43,374 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:43,620 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 102 [2021-02-23 17:39:43,745 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:43,869 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-23 17:39:43,987 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:44,157 WARN L202 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 115 [2021-02-23 17:39:44,306 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:44,434 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 103 [2021-02-23 17:39:44,576 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:44,680 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:44,901 WARN L202 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:45,127 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 101 [2021-02-23 17:39:45,229 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:45,330 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2021-02-23 17:39:45,455 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-23 17:39:45,756 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:45,881 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 110 [2021-02-23 17:39:46,101 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:46,321 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:46,438 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:46,565 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109 [2021-02-23 17:39:46,844 WARN L202 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:46,960 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:47,080 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:47,258 WARN L202 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 113 [2021-02-23 17:39:47,376 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 114 [2021-02-23 17:39:47,525 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:47,667 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:47,908 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:39:48,148 WARN L202 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:39:48,294 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:48,443 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:48,692 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:39:48,937 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:39:49,263 WARN L202 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:49,512 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:49,759 WARN L202 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:50,002 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:39:50,256 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:39:50,507 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:39:50,741 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:39:51,306 WARN L202 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 145 [2021-02-23 17:39:51,553 WARN L202 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:51,917 WARN L202 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-23 17:39:52,161 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:52,657 WARN L202 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-23 17:39:52,947 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:53,322 WARN L202 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-23 17:39:53,597 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:53,742 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:53,888 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:54,130 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:54,305 WARN L202 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-02-23 17:39:54,637 WARN L202 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-23 17:39:54,784 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:54,929 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:55,294 WARN L202 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-23 17:39:55,704 WARN L202 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-23 17:39:55,946 WARN L202 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:56,312 WARN L202 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-23 17:39:56,459 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:56,703 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:56,847 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:57,107 WARN L202 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:57,349 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:57,606 WARN L202 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:39:57,814 WARN L202 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 104 [2021-02-23 17:39:58,095 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:58,340 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:58,587 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:59,149 WARN L202 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-23 17:39:59,414 WARN L202 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:39:59,571 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:59,715 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:39:59,954 WARN L202 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:40:00,197 WARN L202 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:40:00,341 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:00,487 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:00,725 WARN L202 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:40:00,961 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:40:01,269 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:01,519 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:01,773 WARN L202 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:02,015 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:40:02,280 WARN L202 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 132 [2021-02-23 17:40:02,541 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:40:02,796 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:40:03,370 WARN L202 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 145 [2021-02-23 17:40:03,628 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:03,977 WARN L202 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-23 17:40:04,244 WARN L202 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:04,786 WARN L202 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-23 17:40:05,074 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:05,458 WARN L202 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 144 [2021-02-23 17:40:05,748 WARN L202 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:05,892 WARN L202 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:06,038 WARN L202 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:06,281 WARN L202 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:06,460 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 119 [2021-02-23 17:40:06,799 WARN L202 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-23 17:40:07,017 WARN L202 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:07,166 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:07,573 WARN L202 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-23 17:40:07,981 WARN L202 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 127 [2021-02-23 17:40:08,226 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:08,588 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 164 [2021-02-23 17:40:08,733 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:08,986 WARN L202 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:09,133 WARN L202 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 118 [2021-02-23 17:40:09,379 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:09,619 WARN L202 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:09,867 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 129 [2021-02-23 17:40:10,077 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 104 [2021-02-23 17:40:10,352 WARN L202 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:10,601 WARN L202 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:10,845 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:11,395 WARN L202 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 186 [2021-02-23 17:40:11,631 WARN L202 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 135 [2021-02-23 17:40:13,038 WARN L202 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 112 [2021-02-23 17:40:13,246 WARN L202 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-02-23 17:40:13,500 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 136 [2021-02-23 17:40:13,734 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2021-02-23 17:40:14,436 WARN L202 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 126 [2021-02-23 17:40:14,591 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 104 [2021-02-23 17:40:14,816 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 126 [2021-02-23 17:40:15,781 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 140 [2021-02-23 17:40:16,667 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-02-23 17:40:16,770 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-02-23 17:40:17,003 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 17:40:17,210 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-02-23 17:40:17,320 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-02-23 17:40:17,550 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 99 [2021-02-23 17:40:17,795 WARN L202 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 125 [2021-02-23 17:40:17,902 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 17:40:18,025 WARN L202 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2021-02-23 17:40:18,127 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 17:40:18,280 WARN L202 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 125 [2021-02-23 17:40:18,526 WARN L202 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2021-02-23 17:40:18,644 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-02-23 17:40:19,239 WARN L202 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-02-23 17:40:19,621 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 119 [2021-02-23 17:40:20,695 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 129 [2021-02-23 17:40:22,236 WARN L202 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 12 [2021-02-23 17:40:22,460 WARN L202 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-02-23 17:40:22,729 WARN L202 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 21 [2021-02-23 17:40:22,978 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 23 [2021-02-23 17:40:23,190 WARN L202 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2021-02-23 17:40:24,658 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 118 DAG size of output: 44 [2021-02-23 17:40:24,843 WARN L202 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 10 [2021-02-23 17:40:27,134 WARN L202 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 245 DAG size of output: 41 [2021-02-23 17:40:29,381 WARN L202 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 245 DAG size of output: 41 [2021-02-23 17:40:34,190 WARN L202 SmtUtils]: Spent 4.79 s on a formula simplification. DAG size of input: 389 DAG size of output: 53 [2021-02-23 17:40:39,071 WARN L202 SmtUtils]: Spent 4.87 s on a formula simplification. DAG size of input: 389 DAG size of output: 53 [2021-02-23 17:40:42,093 WARN L202 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 236 DAG size of output: 53 [2021-02-23 17:40:42,451 WARN L202 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 10 [2021-02-23 17:40:45,796 WARN L202 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 255 DAG size of output: 47 [2021-02-23 17:40:47,017 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 118 DAG size of output: 44 [2021-02-23 17:40:47,024 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 17:40:47,024 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 17:40:47,024 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,025 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,026 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 17:40:47,026 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,026 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 17:40:47,026 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,026 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,026 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,026 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point L29(lines 29 33) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 27 47) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 27 47) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L185 CegarLoopUtils]: At program point L42(lines 42 46) the Hoare annotation is: (or (<= 7 main_~result~0) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point L34(line 34) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point L34-1(line 34) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point L34-2(line 34) the Hoare annotation is: true [2021-02-23 17:40:47,027 INFO L185 CegarLoopUtils]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) the Hoare annotation is: false [2021-02-23 17:40:47,027 INFO L192 CegarLoopUtils]: At program point mainENTRY(lines 27 47) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L185 CegarLoopUtils]: At program point L45(line 45) the Hoare annotation is: false [2021-02-23 17:40:47,028 INFO L185 CegarLoopUtils]: At program point L45-1(line 45) the Hoare annotation is: false [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L43(line 43) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L41(line 41) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L185 CegarLoopUtils]: At program point L41-1(line 41) the Hoare annotation is: (or (<= 7 |main_#t~ret12|) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L39(line 39) the Hoare annotation is: true [2021-02-23 17:40:47,028 INFO L185 CegarLoopUtils]: At program point L41-2(line 41) the Hoare annotation is: (or (<= 7 |main_#t~ret12|) (<= main_~m~0 1) (<= main_~n~0 1)) [2021-02-23 17:40:47,028 INFO L185 CegarLoopUtils]: At program point L41-3(line 41) the Hoare annotation is: (or (<= main_~m~0 1) (<= main_~n~0 1) (and (<= 7 |main_#t~ret12|) (<= 7 main_~result~0))) [2021-02-23 17:40:47,028 INFO L192 CegarLoopUtils]: At program point L35(lines 35 40) the Hoare annotation is: true [2021-02-23 17:40:47,029 INFO L185 CegarLoopUtils]: At program point ackermannEXIT(lines 16 24) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse2 (<= 5 |ackermann_#res|)) (.cse1 (<= ackermann_~m 1))) (and (or .cse0 .cse1 .cse2) (or (and (<= 2 |ackermann_#res|) .cse0 .cse1) (and (<= |ackermann_#in~n| 3) .cse1 .cse2) (and .cse1 (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse1) (and (<= (+ |ackermann_#in~n| 1) |ackermann_#res|) (= |ackermann_#in~m| 0)) (and (<= |ackermann_#in~n| 1) (<= 3 |ackermann_#res|)) (and (<= 7 |ackermann_#res|) (not (= ackermann_~m 0)))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|))) [2021-02-23 17:40:47,029 INFO L185 CegarLoopUtils]: At program point L23(line 23) the Hoare annotation is: (and (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,029 INFO L185 CegarLoopUtils]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse0 (<= 3 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) .cse0) (let ((.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse5 (<= |ackermann_#in~n| 2)) (.cse2 (<= ackermann_~m 1)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse1 (not (= ackermann_~m 0))) (.cse4 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~n| 3) .cse1 .cse2 (<= 4 |ackermann_#t~ret8|) .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse3) (and .cse1 .cse2 .cse6 .cse4 .cse3 (<= |ackermann_#in~n| 4)) (and .cse1 .cse5 .cse0 .cse2 .cse4 .cse3) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse1 .cse2 .cse4 .cse3) (and (<= 6 |ackermann_#t~ret8|) .cse1 .cse4 .cse3) (and .cse7 .cse1 .cse0 .cse4 .cse3))))) [2021-02-23 17:40:47,029 INFO L192 CegarLoopUtils]: At program point ackermannENTRY(lines 16 24) the Hoare annotation is: true [2021-02-23 17:40:47,029 INFO L185 CegarLoopUtils]: At program point L21(line 21) the Hoare annotation is: (and (= |ackermann_#in~n| 0) (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse0 (<= 3 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) .cse0) (let ((.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse5 (<= |ackermann_#in~n| 2)) (.cse2 (<= ackermann_~m 1)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse1 (not (= ackermann_~m 0))) (.cse4 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= |ackermann_#in~n| 3) .cse1 .cse2 (<= 4 |ackermann_#t~ret8|) .cse3 .cse4) (and .cse1 .cse5 .cse6 .cse4 .cse3) (and .cse1 .cse2 .cse6 .cse4 .cse3 (<= |ackermann_#in~n| 4)) (and .cse1 .cse5 .cse0 .cse2 .cse4 .cse3) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse1 .cse2 .cse4 .cse3) (and (<= 6 |ackermann_#t~ret8|) .cse1 .cse4 .cse3) (and .cse7 .cse1 .cse0 .cse4 .cse3))))) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L20(lines 20 22) the Hoare annotation is: (and (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L21-1(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|))) (or (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)) (and .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|)))) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse7 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= |ackermann_#in~n| 2)) (.cse4 (not (= ackermann_~m 0))) (.cse8 (<= 3 |ackermann_#t~ret8|)) (.cse9 (<= ackermann_~m 1))) (let ((.cse0 (and .cse10 .cse4 (<= 4 |ackermann_#t~ret9|) .cse8 .cse9)) (.cse3 (and .cse7 (<= |ackermann_#in~n| 3) .cse4 .cse9 (<= 4 |ackermann_#t~ret8|))) (.cse1 (<= 6 |ackermann_#t~ret9|)) (.cse2 (<= 5 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) (not (<= |ackermann_#in~m| 1)) .cse0 (and .cse1 .cse2) .cse3) (let ((.cse6 (<= |ackermann_#in~n| 1)) (.cse5 (<= 7 |ackermann_#t~ret9|))) (or (and (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) .cse0 (and .cse6 .cse4 (<= 2 |ackermann_#t~ret8|) .cse9 (<= 3 |ackermann_#t~ret9|)) .cse3 (and .cse4 .cse1 .cse9 .cse2 (<= |ackermann_#in~n| 4)) (and .cse10 .cse4 .cse5 .cse2))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)))) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L21-2(line 21) the Hoare annotation is: (and (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|))) (or (and .cse0 .cse1 .cse2 (<= 3 |ackermann_#t~ret7|)) (and .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|)))) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse7 (<= 5 |ackermann_#t~ret9|)) (.cse10 (<= |ackermann_#in~n| 2)) (.cse4 (not (= ackermann_~m 0))) (.cse8 (<= 3 |ackermann_#t~ret8|)) (.cse9 (<= ackermann_~m 1))) (let ((.cse0 (and .cse10 .cse4 (<= 4 |ackermann_#t~ret9|) .cse8 .cse9)) (.cse3 (and .cse7 (<= |ackermann_#in~n| 3) .cse4 .cse9 (<= 4 |ackermann_#t~ret8|))) (.cse1 (<= 6 |ackermann_#t~ret9|)) (.cse2 (<= 5 |ackermann_#t~ret8|))) (and (or (= |ackermann_#in~n| 1) (<= 2 |ackermann_#res|) (not (<= |ackermann_#in~m| 1)) .cse0 (and .cse1 .cse2) .cse3) (let ((.cse6 (<= |ackermann_#in~n| 1)) (.cse5 (<= 7 |ackermann_#t~ret9|))) (or (and (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and .cse6 .cse7 .cse4 .cse8) .cse0 (and .cse6 .cse4 (<= 2 |ackermann_#t~ret8|) .cse9 (<= 3 |ackermann_#t~ret9|)) .cse3 (and .cse4 .cse1 .cse9 .cse2 (<= |ackermann_#in~n| 4)) (and .cse10 .cse4 .cse5 .cse2))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)))) [2021-02-23 17:40:47,030 INFO L185 CegarLoopUtils]: At program point L18(line 18) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|) (= |ackermann_#in~m| 0)) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point L21-3(line 21) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse1 (not (= ackermann_~m 0))) (.cse2 (= ackermann_~n |ackermann_#in~n|)) (.cse3 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse0 .cse1 (<= 3 |ackermann_#res|) .cse2 .cse3 (<= 3 |ackermann_#t~ret7|)) (and (<= 2 |ackermann_#res|) .cse0 .cse1 (<= ackermann_~m 1) .cse2 (<= 2 |ackermann_#t~ret7|) .cse3))) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse0 (<= 5 |ackermann_#t~ret9|)) (.cse1 (<= 5 |ackermann_#res|)) (.cse7 (<= |ackermann_#in~n| 1)) (.cse3 (<= 7 |ackermann_#res|)) (.cse4 (<= 7 |ackermann_#t~ret9|)) (.cse6 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= ackermann_~m 1))) (and (or (and .cse0 .cse1) .cse2) (not (= ackermann_~m 0)) (let ((.cse5 (= ackermann_~m |ackermann_#in~m|))) (or (and .cse3 (<= 6 |ackermann_#t~ret8|) .cse4 .cse5) (and (<= |ackermann_#in~n| 2) (<= 3 |ackermann_#t~ret8|) .cse5) (and (<= 6 |ackermann_#t~ret9|) .cse2 (<= 6 |ackermann_#res|) .cse6 .cse5 (<= |ackermann_#in~n| 4)) (and .cse0 (<= |ackermann_#in~n| 3) .cse2 (<= 4 |ackermann_#t~ret8|) .cse1 .cse5) (and .cse7 (<= 2 |ackermann_#t~ret8|) .cse2 .cse5))) (<= 3 |ackermann_#t~ret9|) (<= 3 |ackermann_#res|) (= ackermann_~n |ackermann_#in~n|) (or .cse7 (and .cse3 .cse4 .cse6) (and (<= 4 |ackermann_#res|) (<= 4 |ackermann_#t~ret9|) .cse2)))) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point L17(lines 17 19) the Hoare annotation is: (and (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|)) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse0 (<= ackermann_~m 1)) (.cse5 (<= 3 |ackermann_#t~ret8|)) (.cse4 (<= 5 |ackermann_#res|))) (and (let ((.cse1 (<= 5 |ackermann_#t~ret8|)) (.cse2 (<= 7 |ackermann_#res|)) (.cse3 (<= |ackermann_#in~n| 2))) (or (<= |ackermann_#in~n| 1) (and .cse0 (<= 6 |ackermann_#res|) .cse1 (<= |ackermann_#in~n| 4)) (and .cse2 .cse3 .cse1) (and .cse2 (<= 6 |ackermann_#t~ret8|)) (and (<= |ackermann_#in~n| 3) .cse0 (<= 4 |ackermann_#t~ret8|) .cse4) (and (<= 4 |ackermann_#res|) .cse3 .cse5 .cse0))) (not (= ackermann_~m 0)) (= ackermann_~n |ackermann_#in~n|) (let ((.cse6 (= ackermann_~m |ackermann_#in~m|))) (or (and (<= 2 |ackermann_#t~ret8|) .cse0 (<= 3 |ackermann_#res|) .cse6) (and .cse5 .cse4 .cse6))))) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point L16(lines 16 24) the Hoare annotation is: (= ackermann_~m |ackermann_#in~m|) [2021-02-23 17:40:47,031 INFO L185 CegarLoopUtils]: At program point ackermannFINAL(lines 16 24) the Hoare annotation is: (let ((.cse0 (= |ackermann_#in~n| 0)) (.cse2 (<= 5 |ackermann_#res|)) (.cse1 (<= ackermann_~m 1))) (and (or .cse0 .cse1 .cse2) (or (and (<= 2 |ackermann_#res|) .cse0 .cse1) (and (<= |ackermann_#in~n| 3) .cse1 .cse2) (and .cse1 (<= 6 |ackermann_#res|) (<= |ackermann_#in~n| 4)) (and (<= 4 |ackermann_#res|) (<= |ackermann_#in~n| 2) .cse1) (and (<= (+ |ackermann_#in~n| 1) |ackermann_#res|) (= |ackermann_#in~m| 0)) (and (<= |ackermann_#in~n| 1) (<= 3 |ackermann_#res|)) (and (<= 7 |ackermann_#res|) (not (= ackermann_~m 0)))) (= ackermann_~n |ackermann_#in~n|) (= ackermann_~m |ackermann_#in~m|))) [2021-02-23 17:40:47,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 05:40:47 BoogieIcfgContainer [2021-02-23 17:40:47,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 17:40:47,057 INFO L168 Benchmark]: Toolchain (without parser) took 117941.18 ms. Allocated memory was 162.5 MB in the beginning and 608.2 MB in the end (delta: 445.6 MB). Free memory was 140.0 MB in the beginning and 564.3 MB in the end (delta: -424.3 MB). Peak memory consumption was 375.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:40:47,058 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 162.5 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 17:40:47,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.92 ms. Allocated memory is still 162.5 MB. Free memory was 138.9 MB in the beginning and 129.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 17:40:47,058 INFO L168 Benchmark]: Boogie Preprocessor took 32.34 ms. Allocated memory is still 162.5 MB. Free memory was 129.6 MB in the beginning and 128.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 17:40:47,058 INFO L168 Benchmark]: RCFGBuilder took 393.59 ms. Allocated memory is still 162.5 MB. Free memory was 128.2 MB in the beginning and 111.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-23 17:40:47,059 INFO L168 Benchmark]: TraceAbstraction took 117261.16 ms. Allocated memory was 162.5 MB in the beginning and 608.2 MB in the end (delta: 445.6 MB). Free memory was 111.2 MB in the beginning and 564.3 MB in the end (delta: -453.1 MB). Peak memory consumption was 346.1 MB. Max. memory is 8.0 GB. [2021-02-23 17:40:47,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 162.5 MB. Free memory is still 142.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.92 ms. Allocated memory is still 162.5 MB. Free memory was 138.9 MB in the beginning and 129.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.34 ms. Allocated memory is still 162.5 MB. Free memory was 129.6 MB in the beginning and 128.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 393.59 ms. Allocated memory is still 162.5 MB. Free memory was 128.2 MB in the beginning and 111.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 117261.16 ms. Allocated memory was 162.5 MB in the beginning and 608.2 MB in the end (delta: 445.6 MB). Free memory was 111.2 MB in the beginning and 564.3 MB in the end (delta: -453.1 MB). Peak memory consumption was 346.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 45]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 16]: Procedure Contract for ackermann Derived contract for procedure ackermann: ((((\old(n) == 0 || m <= 1) || 5 <= \result) && ((((((((2 <= \result && \old(n) == 0) && m <= 1) || ((\old(n) <= 3 && m <= 1) && 5 <= \result)) || ((m <= 1 && 6 <= \result) && \old(n) <= 4)) || ((4 <= \result && \old(n) <= 2) && m <= 1)) || (\old(n) + 1 <= \result && \old(m) == 0)) || (\old(n) <= 1 && 3 <= \result)) || (7 <= \result && !(m == 0)))) && n == \old(n)) && m == \old(m) - ProcedureContractResult [Line: 27]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 39.9s, OverallIterations: 11, TraceHistogramMax: 27, AutomataDifference: 32.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 77.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 581 SDtfs, 1254 SDslu, 987 SDs, 0 SdLazy, 6618 SolverSat, 1491 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 968 GetRequests, 423 SyntacticMatches, 0 SemanticMatches, 545 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13986 ImplicationChecksByTransitivity, 25.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=200occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 443 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 53 LocationsWithAnnotation, 2591 PreInvPairs, 16504 NumberOfFragments, 1272 HoareAnnotationTreeSize, 2591 FomulaSimplifications, 179193682 FormulaSimplificationTreeSizeReduction, 52.0s HoareSimplificationTime, 53 FomulaSimplificationsInter, 5437503 FormulaSimplificationTreeSizeReductionInter, 24.8s 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...