/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:40:01,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:40:01,032 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:40:01,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:40:01,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:40:01,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:40:01,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:40:01,073 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:40:01,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:40:01,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:40:01,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:40:01,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:40:01,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:40:01,113 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:40:01,118 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:40:01,122 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:40:01,123 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:40:01,124 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:40:01,126 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:40:01,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:40:01,136 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:40:01,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:40:01,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:40:01,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:40:01,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 17:40:01,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 17:40:01,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 17:40:01,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 17:40:01,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 17:40:01,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 17:40:01,150 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 17:40:01,151 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 17:40:01,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 17:40:01,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:40:01,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:40:01,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:40:01,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 17:40:01,183 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:40:01,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:40:01,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:40:01,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:40:01,186 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:40:01,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:40:01,186 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:40:01,186 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:40:01,187 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:40:01,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:40:01,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:40:01,187 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:40:01,188 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:40:01,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:40:01,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:40:01,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:40:01,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:40:01,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:40:01,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:40:01,189 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:40:01,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:40:01,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:40:01,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:40:01,190 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:40:01,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:40:01,191 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-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:40:01,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:40:01,556 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:40:01,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:40:01,561 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:40:01,561 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:40:01,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2021-01-06 17:40:01,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3102265e7/4930e8154f7e4d408b373226b4d924fc/FLAGa278f47f1 [2021-01-06 17:40:02,198 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:40:02,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c [2021-01-06 17:40:02,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3102265e7/4930e8154f7e4d408b373226b4d924fc/FLAGa278f47f1 [2021-01-06 17:40:02,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/3102265e7/4930e8154f7e4d408b373226b4d924fc [2021-01-06 17:40:02,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:40:02,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:40:02,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:40:02,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:40:02,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:40:02,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6951256b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02, skipping insertion in model container [2021-01-06 17:40:02,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:40:02,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:40:02,734 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 17:40:02,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:40:02,761 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:40:02,775 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound20.c[555,568] left hand side expression in assignment: lhs: VariableLHS[~z~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~c~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] left hand side expression in assignment: lhs: VariableLHS[~y~0,] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2021-01-06 17:40:02,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:40:02,797 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:40:02,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02 WrapperNode [2021-01-06 17:40:02,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:40:02,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:40:02,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:40:02,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:40:02,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:40:02,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:40:02,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:40:02,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:40:02,847 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,871 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... [2021-01-06 17:40:02,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:40:02,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:40:02,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:40:02,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:40:02,880 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:40:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:40:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:40:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:40:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:40:03,367 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:40:03,367 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-01-06 17:40:03,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:40:03 BoogieIcfgContainer [2021-01-06 17:40:03,369 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:40:03,371 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:40:03,371 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:40:03,375 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:40:03,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:40:02" (1/3) ... [2021-01-06 17:40:03,376 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bfe9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:40:03, skipping insertion in model container [2021-01-06 17:40:03,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:40:02" (2/3) ... [2021-01-06 17:40:03,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bfe9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:40:03, skipping insertion in model container [2021-01-06 17:40:03,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:40:03" (3/3) ... [2021-01-06 17:40:03,379 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound20.c [2021-01-06 17:40:03,386 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:40:03,391 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 17:40:03,412 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-06 17:40:03,443 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:40:03,443 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:40:03,443 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:40:03,444 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:40:03,444 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:40:03,444 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:40:03,444 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:40:03,445 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:40:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-01-06 17:40:03,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 17:40:03,468 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:40:03,469 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 17:40:03,469 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:40:03,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:40:03,477 INFO L82 PathProgramCache]: Analyzing trace with hash 889571274, now seen corresponding path program 1 times [2021-01-06 17:40:03,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:40:03,489 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086953373] [2021-01-06 17:40:03,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:40:03,665 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:40:03,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001587584] [2021-01-06 17:40:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:40:03,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:40:03,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-01-06 17:40:03,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:40:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:40:03,864 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086953373] [2021-01-06 17:40:03,864 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:40:03,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001587584] [2021-01-06 17:40:03,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:40:03,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 17:40:03,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194618727] [2021-01-06 17:40:03,871 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:40:03,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:40:03,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:40:03,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:40:03,888 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2021-01-06 17:40:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:40:03,988 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2021-01-06 17:40:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 17:40:03,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-01-06 17:40:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:40:03,999 INFO L225 Difference]: With dead ends: 39 [2021-01-06 17:40:04,000 INFO L226 Difference]: Without dead ends: 21 [2021-01-06 17:40:04,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 17:40:04,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-01-06 17:40:04,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 15. [2021-01-06 17:40:04,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-01-06 17:40:04,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-01-06 17:40:04,040 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 6 [2021-01-06 17:40:04,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:40:04,041 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-01-06 17:40:04,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:40:04,041 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-01-06 17:40:04,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 17:40:04,042 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:40:04,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:40:04,257 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-01-06 17:40:04,258 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:40:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:40:04,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1806862075, now seen corresponding path program 1 times [2021-01-06 17:40:04,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:40:04,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132815090] [2021-01-06 17:40:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:40:04,284 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:40:04,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960832931] [2021-01-06 17:40:04,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:40:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:40:04,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-01-06 17:40:04,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:40:04,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 17:40:04,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132815090] [2021-01-06 17:40:04,397 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:40:04,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960832931] [2021-01-06 17:40:04,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:40:04,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 17:40:04,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712893362] [2021-01-06 17:40:04,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 17:40:04,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:40:04,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 17:40:04,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:40:04,407 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2021-01-06 17:40:04,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:40:04,441 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-01-06 17:40:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 17:40:04,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 17:40:04,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:40:04,446 INFO L225 Difference]: With dead ends: 19 [2021-01-06 17:40:04,446 INFO L226 Difference]: Without dead ends: 15 [2021-01-06 17:40:04,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 17:40:04,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-01-06 17:40:04,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-01-06 17:40:04,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-01-06 17:40:04,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2021-01-06 17:40:04,458 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 7 [2021-01-06 17:40:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:40:04,458 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2021-01-06 17:40:04,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 17:40:04,459 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-01-06 17:40:04,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 17:40:04,459 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:40:04,460 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:40:04,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:40:04,679 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:40:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:40:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash 1274494228, now seen corresponding path program 1 times [2021-01-06 17:40:04,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:40:04,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645999847] [2021-01-06 17:40:04,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:40:04,696 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:40:04,697 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1122745810] [2021-01-06 17:40:04,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 17:40:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 17:40:04,828 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 17:40:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 17:40:04,847 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 17:40:04,880 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 17:40:04,881 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 17:40:05,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 17:40:05,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:40:05 BoogieIcfgContainer [2021-01-06 17:40:05,136 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:40:05,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:40:05,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:40:05,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:40:05,137 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:40:03" (3/4) ... [2021-01-06 17:40:05,140 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-06 17:40:05,191 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/geo1-u_unwindbound20.c-witness.graphml [2021-01-06 17:40:05,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:40:05,193 INFO L168 Benchmark]: Toolchain (without parser) took 2646.50 ms. Allocated memory is still 167.8 MB. Free memory was 121.7 MB in the beginning and 138.9 MB in the end (delta: -17.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:40:05,194 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 167.8 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:40:05,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.31 ms. Allocated memory is still 167.8 MB. Free memory was 121.4 MB in the beginning and 111.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 17:40:05,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.61 ms. Allocated memory is still 167.8 MB. Free memory was 111.7 MB in the beginning and 110.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:40:05,196 INFO L168 Benchmark]: Boogie Preprocessor took 40.36 ms. Allocated memory is still 167.8 MB. Free memory was 110.2 MB in the beginning and 149.9 MB in the end (delta: -39.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. [2021-01-06 17:40:05,197 INFO L168 Benchmark]: RCFGBuilder took 490.60 ms. Allocated memory is still 167.8 MB. Free memory was 149.9 MB in the beginning and 138.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 17:40:05,198 INFO L168 Benchmark]: TraceAbstraction took 1765.07 ms. Allocated memory is still 167.8 MB. Free memory was 137.7 MB in the beginning and 141.5 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:40:05,198 INFO L168 Benchmark]: Witness Printer took 54.76 ms. Allocated memory is still 167.8 MB. Free memory was 141.5 MB in the beginning and 138.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:40:05,202 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 167.8 MB. Free memory is still 138.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 250.31 ms. Allocated memory is still 167.8 MB. Free memory was 121.4 MB in the beginning and 111.7 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.61 ms. Allocated memory is still 167.8 MB. Free memory was 111.7 MB in the beginning and 110.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 40.36 ms. Allocated memory is still 167.8 MB. Free memory was 110.2 MB in the beginning and 149.9 MB in the end (delta: -39.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 8.0 GB. * RCFGBuilder took 490.60 ms. Allocated memory is still 167.8 MB. Free memory was 149.9 MB in the beginning and 138.1 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1765.07 ms. Allocated memory is still 167.8 MB. Free memory was 137.7 MB in the beginning and 141.5 MB in the end (delta: -3.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 54.76 ms. Allocated memory is still 167.8 MB. Free memory was 141.5 MB in the beginning and 138.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L22] int counter = 0; VAL [counter=0] [L24] unsigned int z, k; [L25] long long x, y, c; [L26] z = __VERIFIER_nondet_uint() [L27] k = __VERIFIER_nondet_uint() [L29] x = 1 [L30] y = z [L31] c = 1 VAL [counter=0] [L33] EXPR counter++ VAL [counter=1] [L33] COND TRUE counter++<20 [L16] COND FALSE !(!(cond)) VAL [counter=1] [L36] COND TRUE !(c < k) VAL [counter=1] [L45] x = x * (z - 1) [L16] COND TRUE !(cond) VAL [counter=1] [L18] reach_error() VAL [counter=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 8 SDslu, 42 SDs, 0 SdLazy, 24 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 187 SizeOfPredicates, 4 NumberOfNonLiveVariables, 112 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...