/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:13:38,159 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:13:38,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:13:38,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 18:13:38,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 18:13:38,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 18:13:38,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 18:13:38,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 18:13:38,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 18:13:38,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 18:13:38,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 18:13:38,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 18:13:38,214 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:13:38,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:13:38,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:13:38,218 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:13:38,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:13:38,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:13:38,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:13:38,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:13:38,248 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:13:38,249 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:13:38,251 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:13:38,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:13:38,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 18:13:38,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 18:13:38,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 18:13:38,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 18:13:38,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 18:13:38,260 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 18:13:38,260 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 18:13:38,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 18:13:38,262 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 18:13:38,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 18:13:38,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 18:13:38,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 18:13:38,267 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 18:13:38,267 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 18:13:38,268 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:13:38,269 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:13:38,270 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:13:38,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-23 18:13:38,300 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:13:38,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:13:38,302 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:13:38,302 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:13:38,303 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:13:38,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:13:38,303 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:13:38,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:13:38,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:13:38,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:13:38,304 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:13:38,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:13:38,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:13:38,305 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:13:38,305 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:13:38,306 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:13:38,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:13:38,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:13:38,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:13:38,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:13:38,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:13:38,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:13:38,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:13:38,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:13:38,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:13:38,309 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:13:38,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:13:38,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:13:38,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:13:38,310 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:13:38,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:13:38,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:13:38,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:13:38,832 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:13:38,832 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:13:38,833 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c [2020-10-23 18:13:38,943 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d95ab48a/261b2415d483477387fc87364d4bc55a/FLAG46e550a04 [2020-10-23 18:13:39,515 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:13:39,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_4-2.c [2020-10-23 18:13:39,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d95ab48a/261b2415d483477387fc87364d4bc55a/FLAG46e550a04 [2020-10-23 18:13:39,902 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d95ab48a/261b2415d483477387fc87364d4bc55a [2020-10-23 18:13:39,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:13:39,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:13:39,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:13:39,922 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:13:39,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:13:39,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:13:39" (1/1) ... [2020-10-23 18:13:39,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21bc1ab8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:39, skipping insertion in model container [2020-10-23 18:13:39,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:13:39" (1/1) ... [2020-10-23 18:13:39,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:13:39,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:13:40,260 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:13:40,280 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:13:40,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:13:40,331 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:13:40,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40 WrapperNode [2020-10-23 18:13:40,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:13:40,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:13:40,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:13:40,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:13:40,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (1/1) ... [2020-10-23 18:13:40,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:13:40,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:13:40,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:13:40,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:13:40,373 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (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 [2020-10-23 18:13:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:13:40,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:13:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:13:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-23 18:13:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-23 18:13:40,453 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:13:40,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:13:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:13:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:13:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:13:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:13:40,454 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-23 18:13:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-23 18:13:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:13:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:13:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:13:40,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:13:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:13:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:13:40,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:13:40,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:13:40,833 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 18:13:40,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:13:40 BoogieIcfgContainer [2020-10-23 18:13:40,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:13:40,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:13:40,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:13:40,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:13:40,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:13:39" (1/3) ... [2020-10-23 18:13:40,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c868696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:13:40, skipping insertion in model container [2020-10-23 18:13:40,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:13:40" (2/3) ... [2020-10-23 18:13:40,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c868696 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:13:40, skipping insertion in model container [2020-10-23 18:13:40,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:13:40" (3/3) ... [2020-10-23 18:13:40,856 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_4-2.c [2020-10-23 18:13:40,882 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:13:40,887 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:13:40,902 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:13:40,933 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:13:40,933 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:13:40,934 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:13:40,934 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:13:40,934 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:13:40,934 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:13:40,934 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:13:40,934 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:13:40,955 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-23 18:13:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-23 18:13:40,962 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:40,963 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:13:40,964 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:40,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:40,972 INFO L82 PathProgramCache]: Analyzing trace with hash 219823047, now seen corresponding path program 1 times [2020-10-23 18:13:40,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:40,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397606246] [2020-10-23 18:13:40,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:41,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:41,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:13:41,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397606246] [2020-10-23 18:13:41,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:13:41,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:13:41,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574812525] [2020-10-23 18:13:41,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:13:41,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:41,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:13:41,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:13:41,446 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 6 states. [2020-10-23 18:13:41,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:41,917 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2020-10-23 18:13:41,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:13:41,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-23 18:13:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:41,930 INFO L225 Difference]: With dead ends: 53 [2020-10-23 18:13:41,930 INFO L226 Difference]: Without dead ends: 32 [2020-10-23 18:13:41,934 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:13:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-23 18:13:41,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-23 18:13:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-23 18:13:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-23 18:13:41,990 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 15 [2020-10-23 18:13:41,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:41,991 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-23 18:13:41,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:13:41,991 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-23 18:13:41,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-23 18:13:41,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:41,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:13:41,994 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:13:41,994 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:41,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:41,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1220716726, now seen corresponding path program 1 times [2020-10-23 18:13:41,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:41,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887525395] [2020-10-23 18:13:41,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:42,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:13:42,142 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887525395] [2020-10-23 18:13:42,142 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:13:42,143 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 18:13:42,143 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673576251] [2020-10-23 18:13:42,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 18:13:42,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:42,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 18:13:42,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 18:13:42,146 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 6 states. [2020-10-23 18:13:42,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:42,414 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2020-10-23 18:13:42,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 18:13:42,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-23 18:13:42,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:42,416 INFO L225 Difference]: With dead ends: 39 [2020-10-23 18:13:42,416 INFO L226 Difference]: Without dead ends: 34 [2020-10-23 18:13:42,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-23 18:13:42,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-23 18:13:42,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-10-23 18:13:42,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-23 18:13:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-10-23 18:13:42,429 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 16 [2020-10-23 18:13:42,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:42,430 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-10-23 18:13:42,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 18:13:42,430 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-10-23 18:13:42,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-23 18:13:42,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:42,432 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] [2020-10-23 18:13:42,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:13:42,432 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:42,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:42,433 INFO L82 PathProgramCache]: Analyzing trace with hash 2083135015, now seen corresponding path program 1 times [2020-10-23 18:13:42,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:42,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274674219] [2020-10-23 18:13:42,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:42,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:42,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:13:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:13:42,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274674219] [2020-10-23 18:13:42,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080777790] [2020-10-23 18:13:42,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:42,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:13:42,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:42,807 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:13:42,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:42,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2020-10-23 18:13:42,808 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239997563] [2020-10-23 18:13:42,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 18:13:42,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:42,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 18:13:42,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-23 18:13:42,810 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 11 states. [2020-10-23 18:13:43,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:43,440 INFO L93 Difference]: Finished difference Result 61 states and 81 transitions. [2020-10-23 18:13:43,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 18:13:43,441 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 28 [2020-10-23 18:13:43,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:43,443 INFO L225 Difference]: With dead ends: 61 [2020-10-23 18:13:43,443 INFO L226 Difference]: Without dead ends: 36 [2020-10-23 18:13:43,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2020-10-23 18:13:43,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-23 18:13:43,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2020-10-23 18:13:43,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-23 18:13:43,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 41 transitions. [2020-10-23 18:13:43,455 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 41 transitions. Word has length 28 [2020-10-23 18:13:43,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:43,456 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 41 transitions. [2020-10-23 18:13:43,456 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 18:13:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 41 transitions. [2020-10-23 18:13:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-23 18:13:43,458 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:43,458 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:13:43,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:13:43,673 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:43,675 INFO L82 PathProgramCache]: Analyzing trace with hash 752879968, now seen corresponding path program 1 times [2020-10-23 18:13:43,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:43,676 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041303510] [2020-10-23 18:13:43,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:43,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:43,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:13:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,918 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:13:43,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041303510] [2020-10-23 18:13:43,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66642025] [2020-10-23 18:13:43,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:43,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:13:43,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:44,030 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 18:13:44,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:44,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2020-10-23 18:13:44,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769859192] [2020-10-23 18:13:44,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:13:44,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:13:44,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:13:44,033 INFO L87 Difference]: Start difference. First operand 34 states and 41 transitions. Second operand 10 states. [2020-10-23 18:13:44,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:44,730 INFO L93 Difference]: Finished difference Result 57 states and 77 transitions. [2020-10-23 18:13:44,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 18:13:44,731 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 29 [2020-10-23 18:13:44,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:44,736 INFO L225 Difference]: With dead ends: 57 [2020-10-23 18:13:44,736 INFO L226 Difference]: Without dead ends: 52 [2020-10-23 18:13:44,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2020-10-23 18:13:44,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-23 18:13:44,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-10-23 18:13:44,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-23 18:13:44,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 67 transitions. [2020-10-23 18:13:44,753 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 67 transitions. Word has length 29 [2020-10-23 18:13:44,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:44,753 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 67 transitions. [2020-10-23 18:13:44,753 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:13:44,753 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 67 transitions. [2020-10-23 18:13:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-23 18:13:44,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:44,757 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-23 18:13:44,970 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:44,971 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:44,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:44,972 INFO L82 PathProgramCache]: Analyzing trace with hash 2070859795, now seen corresponding path program 1 times [2020-10-23 18:13:44,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:44,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168655819] [2020-10-23 18:13:44,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:44,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:45,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:45,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-23 18:13:45,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-23 18:13:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,202 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:13:45,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168655819] [2020-10-23 18:13:45,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1307739704] [2020-10-23 18:13:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:45,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:45,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:13:45,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:45,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-23 18:13:45,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:45,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-10-23 18:13:45,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552920947] [2020-10-23 18:13:45,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-23 18:13:45,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:45,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-23 18:13:45,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2020-10-23 18:13:45,413 INFO L87 Difference]: Start difference. First operand 50 states and 67 transitions. Second operand 12 states. [2020-10-23 18:13:46,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:46,460 INFO L93 Difference]: Finished difference Result 111 states and 173 transitions. [2020-10-23 18:13:46,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 18:13:46,460 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2020-10-23 18:13:46,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:46,463 INFO L225 Difference]: With dead ends: 111 [2020-10-23 18:13:46,463 INFO L226 Difference]: Without dead ends: 68 [2020-10-23 18:13:46,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 54 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=405, Unknown=0, NotChecked=0, Total=506 [2020-10-23 18:13:46,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-23 18:13:46,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-23 18:13:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-23 18:13:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 97 transitions. [2020-10-23 18:13:46,509 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 97 transitions. Word has length 41 [2020-10-23 18:13:46,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:46,512 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 97 transitions. [2020-10-23 18:13:46,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-23 18:13:46,513 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 97 transitions. [2020-10-23 18:13:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-23 18:13:46,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:46,519 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-10-23 18:13:46,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:46,734 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1960607334, now seen corresponding path program 1 times [2020-10-23 18:13:46,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:46,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805837655] [2020-10-23 18:13:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:46,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:46,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:46,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:46,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:13:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:13:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,894 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-23 18:13:46,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805837655] [2020-10-23 18:13:46,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034773877] [2020-10-23 18:13:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:46,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:46,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:13:46,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:47,109 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-23 18:13:47,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:47,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2020-10-23 18:13:47,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698481278] [2020-10-23 18:13:47,110 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:13:47,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:47,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:13:47,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:13:47,111 INFO L87 Difference]: Start difference. First operand 68 states and 97 transitions. Second operand 14 states. [2020-10-23 18:13:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:48,640 INFO L93 Difference]: Finished difference Result 183 states and 327 transitions. [2020-10-23 18:13:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 18:13:48,641 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 42 [2020-10-23 18:13:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:48,645 INFO L225 Difference]: With dead ends: 183 [2020-10-23 18:13:48,645 INFO L226 Difference]: Without dead ends: 122 [2020-10-23 18:13:48,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=136, Invalid=620, Unknown=0, NotChecked=0, Total=756 [2020-10-23 18:13:48,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-10-23 18:13:48,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 108. [2020-10-23 18:13:48,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-10-23 18:13:48,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 171 transitions. [2020-10-23 18:13:48,680 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 171 transitions. Word has length 42 [2020-10-23 18:13:48,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:48,681 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 171 transitions. [2020-10-23 18:13:48,681 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:13:48,681 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 171 transitions. [2020-10-23 18:13:48,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-23 18:13:48,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:48,686 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-10-23 18:13:48,899 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:48,900 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:48,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:48,901 INFO L82 PathProgramCache]: Analyzing trace with hash -751460799, now seen corresponding path program 1 times [2020-10-23 18:13:48,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:48,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793210314] [2020-10-23 18:13:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:48,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:48,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:48,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:13:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:13:49,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-23 18:13:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,122 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-23 18:13:49,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793210314] [2020-10-23 18:13:49,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770424487] [2020-10-23 18:13:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:49,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:49,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:13:49,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-23 18:13:49,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:49,331 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2020-10-23 18:13:49,331 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072059022] [2020-10-23 18:13:49,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 18:13:49,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:49,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 18:13:49,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:13:49,337 INFO L87 Difference]: Start difference. First operand 108 states and 171 transitions. Second operand 13 states. [2020-10-23 18:13:50,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:50,492 INFO L93 Difference]: Finished difference Result 268 states and 514 transitions. [2020-10-23 18:13:50,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 18:13:50,494 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2020-10-23 18:13:50,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:50,503 INFO L225 Difference]: With dead ends: 268 [2020-10-23 18:13:50,504 INFO L226 Difference]: Without dead ends: 167 [2020-10-23 18:13:50,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2020-10-23 18:13:50,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-10-23 18:13:50,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 144. [2020-10-23 18:13:50,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2020-10-23 18:13:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 246 transitions. [2020-10-23 18:13:50,548 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 246 transitions. Word has length 56 [2020-10-23 18:13:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:50,548 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 246 transitions. [2020-10-23 18:13:50,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 18:13:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 246 transitions. [2020-10-23 18:13:50,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-23 18:13:50,555 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:50,555 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-10-23 18:13:50,769 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-23 18:13:50,770 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:50,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:50,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2073039210, now seen corresponding path program 1 times [2020-10-23 18:13:50,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:50,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416334980] [2020-10-23 18:13:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:50,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:50,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:13:50,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:50,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-23 18:13:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:50,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:50,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:50,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 18:13:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 18:13:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 18:13:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-23 18:13:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,051 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-23 18:13:51,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416334980] [2020-10-23 18:13:51,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504333210] [2020-10-23 18:13:51,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:13:51,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-23 18:13:51,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:13:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-23 18:13:51,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:13:51,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 14 [2020-10-23 18:13:51,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529288606] [2020-10-23 18:13:51,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 18:13:51,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:13:51,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 18:13:51,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-23 18:13:51,207 INFO L87 Difference]: Start difference. First operand 144 states and 246 transitions. Second operand 14 states. [2020-10-23 18:13:52,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:13:52,519 INFO L93 Difference]: Finished difference Result 307 states and 586 transitions. [2020-10-23 18:13:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-23 18:13:52,521 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 57 [2020-10-23 18:13:52,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:13:52,525 INFO L225 Difference]: With dead ends: 307 [2020-10-23 18:13:52,525 INFO L226 Difference]: Without dead ends: 103 [2020-10-23 18:13:52,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2020-10-23 18:13:52,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-10-23 18:13:52,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 85. [2020-10-23 18:13:52,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-23 18:13:52,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 128 transitions. [2020-10-23 18:13:52,556 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 128 transitions. Word has length 57 [2020-10-23 18:13:52,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:13:52,557 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 128 transitions. [2020-10-23 18:13:52,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 18:13:52,557 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 128 transitions. [2020-10-23 18:13:52,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-10-23 18:13:52,559 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:13:52,559 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 3, 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] [2020-10-23 18:13:52,772 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:13:52,773 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:13:52,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:13:52,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1406199094, now seen corresponding path program 1 times [2020-10-23 18:13:52,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:13:52,775 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597331769] [2020-10-23 18:13:52,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:13:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:13:52,793 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:13:52,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:13:52,808 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:13:52,834 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:13:52,834 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:13:52,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-23 18:13:52,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:13:52 BoogieIcfgContainer [2020-10-23 18:13:52,887 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:13:52,889 INFO L168 Benchmark]: Toolchain (without parser) took 12977.40 ms. Allocated memory was 151.0 MB in the beginning and 264.2 MB in the end (delta: 113.2 MB). Free memory was 126.2 MB in the beginning and 137.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 103.3 MB. Max. memory is 8.0 GB. [2020-10-23 18:13:52,890 INFO L168 Benchmark]: CDTParser took 1.41 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:13:52,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.01 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 116.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:13:52,891 INFO L168 Benchmark]: Boogie Preprocessor took 34.83 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:13:52,892 INFO L168 Benchmark]: RCFGBuilder took 464.76 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 100.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-23 18:13:52,893 INFO L168 Benchmark]: TraceAbstraction took 12046.49 ms. Allocated memory was 151.0 MB in the beginning and 264.2 MB in the end (delta: 113.2 MB). Free memory was 100.4 MB in the beginning and 137.1 MB in the end (delta: -36.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:13:52,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.41 ms. Allocated memory is still 151.0 MB. Free memory was 123.7 MB in the beginning and 123.6 MB in the end (delta: 80.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 411.01 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 116.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 34.83 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 464.76 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 100.8 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 12046.49 ms. Allocated memory was 151.0 MB in the beginning and 264.2 MB in the end (delta: 113.2 MB). Free memory was 100.4 MB in the beginning and 137.1 MB in the end (delta: -36.7 MB). Peak memory consumption was 77.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L38] int x = 4; VAL [x=4] [L39] CALL, EXPR fibo1(x) VAL [\old(n)=4] [L10] COND FALSE !(n < 1) VAL [\old(n)=4, n=4] [L12] COND FALSE !(n == 1) VAL [\old(n)=4, n=4] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=3] [L20] COND FALSE !(n < 1) VAL [\old(n)=3, n=3] [L22] COND FALSE !(n == 1) VAL [\old(n)=3, n=3] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=2] [L10] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L12] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L15] CALL, EXPR fibo2(n-1) VAL [\old(n)=1] [L20] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L22] COND TRUE n == 1 [L23] return 1; VAL [\old(n)=1, \result=1, n=1] [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=2, fibo2(n-1)=1, n=2] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=0] [L20] COND TRUE n < 1 [L21] return 0; VAL [\old(n)=0, \result=0, n=0] [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=2, fibo2(n-1)=1, fibo2(n-2)=0, n=2] [L15] return fibo2(n-1) + fibo2(n-2); [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=3, fibo1(n-1)=1, n=3] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=3, fibo1(n-1)=1, fibo1(n-2)=1, n=3] [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-1) VAL [\old(n)=4, fibo2(n-1)=2, n=4] [L15] CALL, EXPR fibo2(n-2) VAL [\old(n)=2] [L20] COND FALSE !(n < 1) VAL [\old(n)=2, n=2] [L22] COND FALSE !(n == 1) VAL [\old(n)=2, n=2] [L25] CALL, EXPR fibo1(n-1) VAL [\old(n)=1] [L10] COND FALSE !(n < 1) VAL [\old(n)=1, n=1] [L12] COND TRUE n == 1 [L13] return 1; VAL [\old(n)=1, \result=1, n=1] [L25] RET, EXPR fibo1(n-1) VAL [\old(n)=2, fibo1(n-1)=1, n=2] [L25] CALL, EXPR fibo1(n-2) VAL [\old(n)=0] [L10] COND TRUE n < 1 [L11] return 0; VAL [\old(n)=0, \result=0, n=0] [L25] RET, EXPR fibo1(n-2) VAL [\old(n)=2, fibo1(n-1)=1, fibo1(n-2)=0, n=2] [L25] return fibo1(n-1) + fibo1(n-2); [L15] RET, EXPR fibo2(n-2) VAL [\old(n)=4, fibo2(n-1)=2, fibo2(n-2)=1, n=4] [L15] return fibo2(n-1) + fibo2(n-2); [L39] RET, EXPR fibo1(x) VAL [fibo1(x)=3, x=4] [L39] int result = fibo1(x); [L40] COND TRUE result == 3 VAL [result=3, x=4] [L41] CALL reach_error() [L4] __assert_fail("0", "fibo_2calls_4-2.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.9s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 239 SDtfs, 426 SDslu, 546 SDs, 0 SdLazy, 2341 SolverSat, 398 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 479 GetRequests, 333 SyntacticMatches, 3 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=144occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 607 NumberOfCodeBlocks, 607 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 523 ConstructedInterpolants, 0 QuantifiedInterpolants, 46617 SizeOfPredicates, 21 NumberOfNonLiveVariables, 944 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 193/262 InterpolantCoveringCapability, 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...