/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label50.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-22 02:03:41,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-22 02:03:41,395 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-22 02:03:41,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-22 02:03:41,452 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-22 02:03:41,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-22 02:03:41,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-22 02:03:41,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-22 02:03:41,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-22 02:03:41,458 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-22 02:03:41,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-22 02:03:41,462 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-22 02:03:41,464 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-22 02:03:41,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-22 02:03:41,466 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-22 02:03:41,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-22 02:03:41,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-22 02:03:41,480 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-22 02:03:41,481 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-22 02:03:41,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-22 02:03:41,483 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-22 02:03:41,495 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-22 02:03:41,495 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-22 02:03:41,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-22 02:03:41,497 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-22 02:03:41,497 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-22 02:03:41,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-22 02:03:41,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-22 02:03:41,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-22 02:03:41,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-22 02:03:41,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-22 02:03:41,499 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-22 02:03:41,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-22 02:03:41,500 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-22 02:03:41,500 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-22 02:03:41,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-22 02:03:41,501 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-22 02:03:41,501 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-22 02:03:41,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-22 02:03:41,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-22 02:03:41,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-22 02:03:41,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-22 02:03:41,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-22 02:03:41,503 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-22 02:03:41,503 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-22 02:03:41,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-22 02:03:41,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-22 02:03:41,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-22 02:03:41,876 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-22 02:03:41,877 INFO L275 PluginConnector]: CDTParser initialized [2021-02-22 02:03:41,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label50.c [2021-02-22 02:03:41,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab36009dc/49dfa553740a44fe957b4fbf6f7c41d1/FLAG1823ea154 [2021-02-22 02:03:42,693 INFO L306 CDTParser]: Found 1 translation units. [2021-02-22 02:03:42,695 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label50.c [2021-02-22 02:03:42,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab36009dc/49dfa553740a44fe957b4fbf6f7c41d1/FLAG1823ea154 [2021-02-22 02:03:42,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab36009dc/49dfa553740a44fe957b4fbf6f7c41d1 [2021-02-22 02:03:42,893 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-22 02:03:42,908 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-22 02:03:42,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-22 02:03:42,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-22 02:03:42,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-22 02:03:42,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:03:42" (1/1) ... [2021-02-22 02:03:42,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033b293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:42, skipping insertion in model container [2021-02-22 02:03:42,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.02 02:03:42" (1/1) ... [2021-02-22 02:03:42,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-22 02:03:43,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-22 02:03:43,399 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label50.c[15378,15391] [2021-02-22 02:03:43,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:03:43,504 INFO L203 MainTranslator]: Completed pre-run [2021-02-22 02:03:43,640 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label50.c[15378,15391] [2021-02-22 02:03:43,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-22 02:03:43,726 INFO L208 MainTranslator]: Completed translation [2021-02-22 02:03:43,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43 WrapperNode [2021-02-22 02:03:43,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-22 02:03:43,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-22 02:03:43,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-22 02:03:43,732 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-22 02:03:43,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,800 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (1/1) ... [2021-02-22 02:03:43,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-22 02:03:43,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-22 02:03:43,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-22 02:03:43,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-22 02:03:43,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (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 [2021-02-22 02:03:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-22 02:03:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-22 02:03:44,025 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-22 02:03:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-22 02:03:44,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-22 02:03:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-22 02:03:44,026 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-22 02:03:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-22 02:03:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-22 02:03:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-22 02:03:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-22 02:03:44,027 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-22 02:03:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-22 02:03:44,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-22 02:03:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-22 02:03:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-22 02:03:44,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-22 02:03:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-22 02:03:44,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-22 02:03:45,458 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-22 02:03:45,459 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-22 02:03:45,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:03:45 BoogieIcfgContainer [2021-02-22 02:03:45,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-22 02:03:45,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-22 02:03:45,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-22 02:03:45,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-22 02:03:45,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.02 02:03:42" (1/3) ... [2021-02-22 02:03:45,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14231c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:03:45, skipping insertion in model container [2021-02-22 02:03:45,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.02 02:03:43" (2/3) ... [2021-02-22 02:03:45,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14231c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.02 02:03:45, skipping insertion in model container [2021-02-22 02:03:45,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.02 02:03:45" (3/3) ... [2021-02-22 02:03:45,470 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label50.c [2021-02-22 02:03:45,477 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-22 02:03:45,482 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-22 02:03:45,501 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-22 02:03:45,524 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-22 02:03:45,524 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-22 02:03:45,524 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-22 02:03:45,524 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-22 02:03:45,524 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-22 02:03:45,525 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-22 02:03:45,525 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-22 02:03:45,525 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-22 02:03:45,550 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states. [2021-02-22 02:03:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-02-22 02:03:45,571 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:45,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:45,573 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:45,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:45,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1135212171, now seen corresponding path program 1 times [2021-02-22 02:03:45,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:45,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [980695877] [2021-02-22 02:03:45,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:45,665 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-22 02:03:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:46,084 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-22 02:03:46,085 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-22 02:03:46,096 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:46,098 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:03:46,098 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:46,099 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:03:46,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:46,102 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:46,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:03:46,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:46,286 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:46,287 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:46,288 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:46,289 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:46,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:03:46,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [980695877] [2021-02-22 02:03:46,382 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:03:46,382 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-22 02:03:46,383 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140044025] [2021-02-22 02:03:46,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-22 02:03:46,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:03:46,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-22 02:03:46,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-02-22 02:03:46,410 INFO L87 Difference]: Start difference. First operand 534 states. Second operand 5 states. [2021-02-22 02:03:49,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:03:49,012 INFO L93 Difference]: Finished difference Result 1268 states and 1667 transitions. [2021-02-22 02:03:49,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-22 02:03:49,014 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 115 [2021-02-22 02:03:49,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:03:49,059 INFO L225 Difference]: With dead ends: 1268 [2021-02-22 02:03:49,060 INFO L226 Difference]: Without dead ends: 693 [2021-02-22 02:03:49,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-02-22 02:03:49,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2021-02-22 02:03:49,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 611. [2021-02-22 02:03:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2021-02-22 02:03:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 733 transitions. [2021-02-22 02:03:49,339 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 733 transitions. Word has length 115 [2021-02-22 02:03:49,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:03:49,340 INFO L480 AbstractCegarLoop]: Abstraction has 611 states and 733 transitions. [2021-02-22 02:03:49,340 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-22 02:03:49,340 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 733 transitions. [2021-02-22 02:03:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-02-22 02:03:49,348 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:49,348 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:49,349 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-22 02:03:49,349 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:49,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1818776011, now seen corresponding path program 1 times [2021-02-22 02:03:49,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:49,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1212376271] [2021-02-22 02:03:49,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:49,396 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,423 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,432 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,437 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,473 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:49,485 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:49,491 WARN L141 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size [2021-02-22 02:03:49,496 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:49,500 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,500 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:49,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:49,509 WARN L147 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size 83 [2021-02-22 02:03:49,511 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,517 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,520 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,525 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,576 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:49,584 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:49,592 WARN L141 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size [2021-02-22 02:03:49,595 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:49,600 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,601 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:49,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,606 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:49,608 WARN L147 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size 83 [2021-02-22 02:03:49,611 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,621 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,625 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,633 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,666 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:49,668 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:49,673 WARN L141 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size [2021-02-22 02:03:49,675 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:49,676 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,676 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:49,677 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,680 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:49,681 WARN L147 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size 83 [2021-02-22 02:03:49,684 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,688 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,691 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:49,695 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:49,728 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:49,730 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:49,733 WARN L141 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size [2021-02-22 02:03:49,735 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:49,736 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,737 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:49,738 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,741 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:49,742 WARN L147 QuantifierPusher]: treesize reduction 7, result has 92.2 percent of original size 83 [2021-02-22 02:03:49,742 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:03:49,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:49,904 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:49,909 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,909 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:49,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:49,911 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,912 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:49,919 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,919 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:49,921 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,921 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:49,922 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,923 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-22 02:03:49,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:49,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:50,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-22 02:03:50,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-22 02:03:50,047 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,048 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-22 02:03:50,048 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,049 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-22 02:03:50,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-22 02:03:50,100 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,111 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-02-22 02:03:50,117 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,119 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:50,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:03:50,124 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:03:50,126 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,126 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:50,127 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,129 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:03:50,131 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-02-22 02:03:50,167 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,168 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:50,169 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-22 02:03:50,171 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,171 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-02-22 02:03:50,183 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,184 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-02-22 02:03:50,207 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,208 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-22 02:03:50,222 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,225 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-02-22 02:03:50,269 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,272 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-02-22 02:03:50,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-02-22 02:03:50,341 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,342 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-02-22 02:03:50,378 WARN L141 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size [2021-02-22 02:03:50,383 WARN L147 QuantifierPusher]: treesize reduction 4, result has 93.7 percent of original size 59 [2021-02-22 02:03:50,437 WARN L141 QuantifierPusher]: treesize reduction 22, result has 79.8 percent of original size [2021-02-22 02:03:50,439 WARN L147 QuantifierPusher]: treesize reduction 22, result has 79.8 percent of original size 87 [2021-02-22 02:03:50,519 WARN L141 QuantifierPusher]: treesize reduction 4, result has 96.6 percent of original size [2021-02-22 02:03:50,525 WARN L147 QuantifierPusher]: treesize reduction 4, result has 96.6 percent of original size 114 [2021-02-22 02:03:50,646 WARN L141 QuantifierPusher]: treesize reduction 88, result has 37.1 percent of original size [2021-02-22 02:03:50,648 WARN L147 QuantifierPusher]: treesize reduction 88, result has 37.1 percent of original size 52 [2021-02-22 02:03:50,715 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:03:50,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,764 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:50,764 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,765 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-22 02:03:50,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-22 02:03:50,837 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,838 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-02-22 02:03:50,879 WARN L141 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size [2021-02-22 02:03:50,880 WARN L147 QuantifierPusher]: treesize reduction -2, result has 106.5 percent of original size 33 [2021-02-22 02:03:50,927 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,928 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:50,930 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,934 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-02-22 02:03:50,973 WARN L141 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size [2021-02-22 02:03:50,974 WARN L147 QuantifierPusher]: treesize reduction 8, result has 78.9 percent of original size 30 [2021-02-22 02:03:50,975 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:50,976 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-02-22 02:03:51,021 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:51,025 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-02-22 02:03:51,065 WARN L141 QuantifierPusher]: treesize reduction 30, result has 3.2 percent of original size [2021-02-22 02:03:51,066 WARN L147 QuantifierPusher]: treesize reduction 30, result has 3.2 percent of original size 1 [2021-02-22 02:03:51,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1212376271] [2021-02-22 02:03:51,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-22 02:03:51,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-02-22 02:03:51,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217243792] [2021-02-22 02:03:51,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-02-22 02:03:51,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-22 02:03:51,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-02-22 02:03:51,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2021-02-22 02:03:51,070 INFO L87 Difference]: Start difference. First operand 611 states and 733 transitions. Second operand 22 states. [2021-02-22 02:03:51,675 WARN L202 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:03:51,809 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-02-22 02:03:52,058 WARN L202 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-22 02:03:52,260 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-02-22 02:03:52,535 WARN L202 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-02-22 02:03:52,708 WARN L202 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-02-22 02:03:56,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-22 02:03:56,857 INFO L93 Difference]: Finished difference Result 1888 states and 2351 transitions. [2021-02-22 02:03:56,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-22 02:03:56,858 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 136 [2021-02-22 02:03:56,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-22 02:03:56,874 INFO L225 Difference]: With dead ends: 1888 [2021-02-22 02:03:56,875 INFO L226 Difference]: Without dead ends: 1309 [2021-02-22 02:03:56,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2021-02-22 02:03:56,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-02-22 02:03:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1021. [2021-02-22 02:03:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1021 states. [2021-02-22 02:03:57,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1249 transitions. [2021-02-22 02:03:57,163 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1249 transitions. Word has length 136 [2021-02-22 02:03:57,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-22 02:03:57,164 INFO L480 AbstractCegarLoop]: Abstraction has 1021 states and 1249 transitions. [2021-02-22 02:03:57,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 22 states. [2021-02-22 02:03:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1249 transitions. [2021-02-22 02:03:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-02-22 02:03:57,169 INFO L414 BasicCegarLoop]: Found error trace [2021-02-22 02:03:57,170 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-22 02:03:57,171 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-22 02:03:57,171 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-22 02:03:57,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-22 02:03:57,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1961255384, now seen corresponding path program 1 times [2021-02-22 02:03:57,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-22 02:03:57,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861945829] [2021-02-22 02:03:57,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-22 02:03:57,204 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,210 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,212 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,216 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,249 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,251 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,253 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,255 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,257 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,257 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,259 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,264 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,266 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,270 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,272 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,276 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,307 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,309 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,312 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,313 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,314 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,315 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,316 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,320 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,321 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,322 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,327 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,329 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,335 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,364 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,368 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,370 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,371 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,373 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,373 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,374 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,376 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,378 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,381 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,385 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,387 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,392 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,424 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,426 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,428 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,430 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,434 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,434 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,438 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,439 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,441 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,448 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,450 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,454 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,488 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,490 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,492 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,493 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,496 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,496 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,498 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,501 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,503 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,504 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,508 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,510 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,514 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,546 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,548 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,552 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,553 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,555 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,555 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,557 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,559 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,561 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,562 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,566 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,568 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,572 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,602 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,604 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,606 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,607 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,609 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,609 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,610 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,612 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,613 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,615 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,619 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,621 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,625 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,659 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,661 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,663 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,665 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,666 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,666 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,667 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,670 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,671 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,707 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,717 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,719 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,723 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,753 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,755 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,758 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,759 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,760 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,760 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,764 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,766 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,770 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,772 WARN L141 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size [2021-02-22 02:03:57,775 WARN L147 QuantifierPusher]: treesize reduction 8, result has 88.2 percent of original size 60 [2021-02-22 02:03:57,805 WARN L141 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size [2021-02-22 02:03:57,807 WARN L147 QuantifierPusher]: treesize reduction 2, result has 94.3 percent of original size 33 [2021-02-22 02:03:57,810 WARN L141 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size [2021-02-22 02:03:57,811 INFO L723 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-02-22 02:03:57,812 INFO L730 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,812 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-02-22 02:03:57,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-22 02:03:57,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-02-22 02:03:57,816 WARN L147 QuantifierPusher]: treesize reduction 4, result has 95.6 percent of original size 86 [2021-02-22 02:03:57,816 INFO L206 tedInterpolationCore]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2021-02-22 02:03:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:03:57,868 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:03:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-22 02:03:57,909 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-22 02:03:57,987 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-22 02:03:57,988 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-22 02:03:57,990 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-02-22 02:03:58,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.02 02:03:58 BoogieIcfgContainer [2021-02-22 02:03:58,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-22 02:03:58,036 INFO L168 Benchmark]: Toolchain (without parser) took 15131.77 ms. Allocated memory was 160.4 MB in the beginning and 398.5 MB in the end (delta: 238.0 MB). Free memory was 135.3 MB in the beginning and 324.1 MB in the end (delta: -188.8 MB). Peak memory consumption was 50.0 MB. Max. memory is 8.0 GB. [2021-02-22 02:03:58,036 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 133.3 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-22 02:03:58,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 814.33 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 141.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:03:58,039 INFO L168 Benchmark]: Boogie Preprocessor took 175.13 ms. Allocated memory is still 160.4 MB. Free memory was 141.7 MB in the beginning and 136.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2021-02-22 02:03:58,039 INFO L168 Benchmark]: RCFGBuilder took 1551.84 ms. Allocated memory was 160.4 MB in the beginning and 194.0 MB in the end (delta: 33.6 MB). Free memory was 136.8 MB in the beginning and 132.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. [2021-02-22 02:03:58,040 INFO L168 Benchmark]: TraceAbstraction took 12564.22 ms. Allocated memory was 194.0 MB in the beginning and 398.5 MB in the end (delta: 204.5 MB). Free memory was 132.1 MB in the beginning and 324.1 MB in the end (delta: -192.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. [2021-02-22 02:03:58,045 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 160.4 MB. Free memory was 133.4 MB in the beginning and 133.3 MB in the end (delta: 98.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 814.33 ms. Allocated memory is still 160.4 MB. Free memory was 134.2 MB in the beginning and 141.7 MB in the end (delta: -7.5 MB). Peak memory consumption was 33.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 175.13 ms. Allocated memory is still 160.4 MB. Free memory was 141.7 MB in the beginning and 136.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1551.84 ms. Allocated memory was 160.4 MB in the beginning and 194.0 MB in the end (delta: 33.6 MB). Free memory was 136.8 MB in the beginning and 132.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 88.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12564.22 ms. Allocated memory was 194.0 MB in the beginning and 398.5 MB in the end (delta: 204.5 MB). Free memory was 132.1 MB in the beginning and 324.1 MB in the end (delta: -192.1 MB). Peak memory consumption was 12.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 423]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int d= 4; [L19] int e= 5; [L20] int f= 6; [L21] int c= 3; [L22] int b= 2; [L25] int u = 21; [L26] int v = 22; [L27] int w = 23; [L28] int x = 24; [L29] int y = 25; [L30] int z = 26; [L32] int a17 = 1; [L33] int a7 = 0; [L34] int a20 = 1; [L35] int a8 = 15; [L36] int a12 = 8; [L37] int a16 = 5; [L38] int a21 = 1; [L590] int output = -1; [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L94] COND TRUE ((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8)) [L95] a7 = 0 [L96] a20 = 1 [L97] a8 = 14 [L98] a16 = 4 [L99] a21 = 1 [L100] a17 = 0 [L101] return -1; [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L278] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L283] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L288] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L296] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L302] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L309] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L316] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L322] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L326] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L328] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L334] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L339] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L343] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L347] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L355] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L363] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L365] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L371] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L373] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L375] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L382] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L387] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L392] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L401] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L404] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L407] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L410] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L413] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L416] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L419] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L422] COND TRUE ((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L423] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 537 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 702 SDtfs, 3457 SDslu, 900 SDs, 0 SdLazy, 3620 SolverSat, 583 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1021occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 370 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, 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 incorrect! Received shutdown request...