/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:26:36,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:26:36,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:26:36,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:26:36,962 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:26:36,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:26:36,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:26:36,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:26:36,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:26:36,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:26:36,989 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:26:36,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:26:36,991 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:26:36,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:26:36,996 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:26:36,998 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:26:36,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:26:37,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:26:37,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:26:37,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:26:37,030 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:26:37,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:26:37,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:26:37,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:26:37,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:26:37,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:26:37,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:26:37,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:26:37,057 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:26:37,081 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:26:37,081 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:26:37,087 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:26:37,087 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:26:37,088 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:26:37,088 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:26:37,088 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:26:37,088 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:26:37,088 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:26:37,089 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:26:37,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:26:37,090 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:26:37,090 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:26:37,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:26:37,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:26:37,092 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:26:37,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:26:37,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:26:37,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:26:37,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:26:37,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:26:37,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:26:37,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:26:37,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:26:37,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:26:37,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:26:37,524 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:26:37,525 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:26:37,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2020-10-23 20:26:37,624 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e4c3c7c/886fd66aa15a4afeb27347fdc6eaf656/FLAGe9280307b [2020-10-23 20:26:38,327 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:26:38,328 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_2-1.c [2020-10-23 20:26:38,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e4c3c7c/886fd66aa15a4afeb27347fdc6eaf656/FLAGe9280307b [2020-10-23 20:26:38,726 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11e4c3c7c/886fd66aa15a4afeb27347fdc6eaf656 [2020-10-23 20:26:38,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:26:38,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:26:38,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:26:38,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:26:38,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:26:38,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:38,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@296912aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38, skipping insertion in model container [2020-10-23 20:26:38,750 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:38,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:26:38,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:26:38,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:26:38,962 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:26:38,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:26:38,998 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:26:38,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38 WrapperNode [2020-10-23 20:26:38,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:26:39,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:26:39,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:26:39,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:26:39,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,022 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... [2020-10-23 20:26:39,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:26:39,036 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:26:39,036 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:26:39,036 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:26:39,037 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:26:39,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:26:39,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:26:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:26:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-10-23 20:26:39,122 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-10-23 20:26:39,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:26:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:26:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:26:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:26:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:26:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:26:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-10-23 20:26:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-10-23 20:26:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:26:39,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:26:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:26:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:26:39,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:26:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:26:39,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:26:39,443 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:26:39,444 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:26:39,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:26:39 BoogieIcfgContainer [2020-10-23 20:26:39,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:26:39,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:26:39,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:26:39,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:26:39,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:26:38" (1/3) ... [2020-10-23 20:26:39,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d8baef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:26:39, skipping insertion in model container [2020-10-23 20:26:39,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:26:38" (2/3) ... [2020-10-23 20:26:39,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d8baef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:26:39, skipping insertion in model container [2020-10-23 20:26:39,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:26:39" (3/3) ... [2020-10-23 20:26:39,459 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_2-1.c [2020-10-23 20:26:39,475 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:26:39,482 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:26:39,500 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:26:39,533 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:26:39,533 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:26:39,533 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:26:39,533 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:26:39,534 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:26:39,534 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:26:39,534 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:26:39,534 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:26:39,555 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states. [2020-10-23 20:26:39,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-23 20:26:39,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:26:39,579 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] [2020-10-23 20:26:39,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:26:39,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:26:39,595 INFO L82 PathProgramCache]: Analyzing trace with hash 775886402, now seen corresponding path program 1 times [2020-10-23 20:26:39,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:26:39,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522897681] [2020-10-23 20:26:39,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:26:39,764 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:26:39,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:26:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 20:26:40,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,119 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 20:26:40,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522897681] [2020-10-23 20:26:40,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:26:40,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:26:40,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778661926] [2020-10-23 20:26:40,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:26:40,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:26:40,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:26:40,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:26:40,152 INFO L87 Difference]: Start difference. First operand 57 states. Second operand 6 states. [2020-10-23 20:26:40,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:26:40,577 INFO L93 Difference]: Finished difference Result 71 states and 81 transitions. [2020-10-23 20:26:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:26:40,590 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2020-10-23 20:26:40,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:26:40,603 INFO L225 Difference]: With dead ends: 71 [2020-10-23 20:26:40,603 INFO L226 Difference]: Without dead ends: 51 [2020-10-23 20:26:40,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:26:40,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-23 20:26:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-23 20:26:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-23 20:26:40,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-10-23 20:26:40,670 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 25 [2020-10-23 20:26:40,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:26:40,671 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-10-23 20:26:40,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:26:40,672 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-10-23 20:26:40,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-23 20:26:40,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:26:40,674 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] [2020-10-23 20:26:40,675 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:26:40,675 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:26:40,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:26:40,676 INFO L82 PathProgramCache]: Analyzing trace with hash 478831265, now seen corresponding path program 1 times [2020-10-23 20:26:40,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:26:40,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17746164] [2020-10-23 20:26:40,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:26:40,680 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:26:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:26:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 20:26:40,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:40,793 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 20:26:40,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17746164] [2020-10-23 20:26:40,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:26:40,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 20:26:40,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650614033] [2020-10-23 20:26:40,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 20:26:40,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:26:40,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 20:26:40,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-23 20:26:40,797 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 6 states. [2020-10-23 20:26:41,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:26:41,082 INFO L93 Difference]: Finished difference Result 60 states and 68 transitions. [2020-10-23 20:26:41,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-23 20:26:41,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-23 20:26:41,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:26:41,085 INFO L225 Difference]: With dead ends: 60 [2020-10-23 20:26:41,086 INFO L226 Difference]: Without dead ends: 53 [2020-10-23 20:26:41,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-10-23 20:26:41,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-23 20:26:41,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 51. [2020-10-23 20:26:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-23 20:26:41,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2020-10-23 20:26:41,105 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 26 [2020-10-23 20:26:41,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:26:41,106 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2020-10-23 20:26:41,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 20:26:41,106 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2020-10-23 20:26:41,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-10-23 20:26:41,108 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:26:41,108 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 20:26:41,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:26:41,109 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:26:41,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:26:41,110 INFO L82 PathProgramCache]: Analyzing trace with hash -708858972, now seen corresponding path program 1 times [2020-10-23 20:26:41,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:26:41,110 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2139534416] [2020-10-23 20:26:41,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:26:41,113 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:26:41,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:26:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2020-10-23 20:26:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:41,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-23 20:26:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-23 20:26:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:26:41,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-23 20:26:41,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2139534416] [2020-10-23 20:26:41,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:26:41,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-23 20:26:41,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035832561] [2020-10-23 20:26:41,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 20:26:41,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:26:41,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 20:26:41,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-23 20:26:41,342 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand 8 states. [2020-10-23 20:26:41,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:26:41,769 INFO L93 Difference]: Finished difference Result 92 states and 112 transitions. [2020-10-23 20:26:41,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-23 20:26:41,770 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 42 [2020-10-23 20:26:41,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:26:41,772 INFO L225 Difference]: With dead ends: 92 [2020-10-23 20:26:41,772 INFO L226 Difference]: Without dead ends: 55 [2020-10-23 20:26:41,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:26:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-23 20:26:41,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 53. [2020-10-23 20:26:41,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-23 20:26:41,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 60 transitions. [2020-10-23 20:26:41,789 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 60 transitions. Word has length 42 [2020-10-23 20:26:41,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:26:41,790 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 60 transitions. [2020-10-23 20:26:41,790 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 20:26:41,790 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-10-23 20:26:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-23 20:26:41,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:26:41,792 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:26:41,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:26:41,793 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:26:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:26:41,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1629720462, now seen corresponding path program 1 times [2020-10-23 20:26:41,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:26:41,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1297341317] [2020-10-23 20:26:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:26:41,797 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:26:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:26:41,814 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:26:41,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:26:41,838 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:26:41,871 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:26:41,872 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:26:41,872 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:26:41,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:26:41 BoogieIcfgContainer [2020-10-23 20:26:41,896 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:26:41,901 INFO L168 Benchmark]: Toolchain (without parser) took 3165.80 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 128.3 MB in the beginning and 98.1 MB in the end (delta: 30.1 MB). Peak memory consumption was 61.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:26:41,902 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:26:41,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 258.42 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 118.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:26:41,907 INFO L168 Benchmark]: Boogie Preprocessor took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 116.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:26:41,909 INFO L168 Benchmark]: RCFGBuilder took 410.98 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 134.3 MB in the end (delta: -17.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:26:41,912 INFO L168 Benchmark]: TraceAbstraction took 2446.12 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.8 MB in the beginning and 98.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 66.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:26:41,926 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 151.0 MB. Free memory was 125.5 MB in the beginning and 125.4 MB in the end (delta: 120.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 258.42 ms. Allocated memory is still 151.0 MB. Free memory was 127.5 MB in the beginning and 118.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.36 ms. Allocated memory is still 151.0 MB. Free memory was 118.3 MB in the beginning and 116.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 410.98 ms. Allocated memory is still 151.0 MB. Free memory was 116.8 MB in the beginning and 134.3 MB in the end (delta: -17.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2446.12 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 133.8 MB in the beginning and 98.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 66.1 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 = 2; [L39] CALL, EXPR fibo1(x) [L10] COND FALSE !(n < 1) [L12] COND FALSE !(n == 1) [L15] CALL, EXPR fibo2(n-1) [L20] COND FALSE !(n < 1) [L22] COND TRUE n == 1 [L23] return 1; [L15] RET, EXPR fibo2(n-1) [L15] CALL, EXPR fibo2(n-2) [L20] COND TRUE n < 1 [L21] return 0; [L15] RET, EXPR fibo2(n-2) [L15] return fibo2(n-1) + fibo2(n-2); [L39] RET, EXPR fibo1(x) [L39] int result = fibo1(x); [L40] COND TRUE result == 1 [L41] CALL reach_error() [L4] __assert_fail("0", "fibo_2calls_2-1.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 57 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 143 SDtfs, 171 SDslu, 180 SDs, 0 SdLazy, 383 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=57occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 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...