/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/fermat2-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 17:38:09,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 17:38:09,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 17:38:09,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 17:38:09,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 17:38:09,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 17:38:09,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 17:38:09,368 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 17:38:09,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 17:38:09,372 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 17:38:09,373 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 17:38:09,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 17:38:09,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 17:38:09,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 17:38:09,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 17:38:09,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 17:38:09,380 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 17:38:09,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 17:38:09,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 17:38:09,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 17:38:09,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 17:38:09,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 17:38:09,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 17:38:09,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 17:38:09,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 17:38:09,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 17:38:09,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 17:38:09,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 17:38:09,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 17:38:09,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 17:38:09,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 17:38:09,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 17:38:09,429 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 17:38:09,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 17:38:09,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 17:38:09,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 17:38:09,432 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 17:38:09,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 17:38:09,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 17:38:09,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 17:38:09,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 17:38:09,464 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 17:38:09,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 17:38:09,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 17:38:09,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 17:38:09,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 17:38:09,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 17:38:09,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 17:38:09,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 17:38:09,466 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 17:38:09,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 17:38:09,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 17:38:09,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 17:38:09,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 17:38:09,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 17:38:09,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 17:38:09,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 17:38:09,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 17:38:09,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 17:38:09,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 17:38:09,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 17:38:09,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 17:38:09,473 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 17:38:09,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 17:38:09,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 17:38:09,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 17:38:09,867 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 17:38:09,870 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 17:38:09,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c [2021-01-06 17:38:09,954 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/86c4734d4/b129dac2fd5f429c9f8ce756ff169b3e/FLAGdbdef0558 [2021-01-06 17:38:10,585 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 17:38:10,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound1.c [2021-01-06 17:38:10,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/86c4734d4/b129dac2fd5f429c9f8ce756ff169b3e/FLAGdbdef0558 [2021-01-06 17:38:10,983 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/86c4734d4/b129dac2fd5f429c9f8ce756ff169b3e [2021-01-06 17:38:10,988 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 17:38:10,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 17:38:10,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 17:38:10,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 17:38:11,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 17:38:11,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:38:10" (1/1) ... [2021-01-06 17:38:11,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18e06587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11, skipping insertion in model container [2021-01-06 17:38:11,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 05:38:10" (1/1) ... [2021-01-06 17:38:11,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 17:38:11,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 17:38:11,251 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/fermat2-ll_valuebound1.c[524,537] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~R~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] [2021-01-06 17:38:11,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:38:11,287 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 17:38:11,300 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/fermat2-ll_valuebound1.c[524,537] left hand side expression in assignment: lhs: VariableLHS[~A~0,] left hand side expression in assignment: lhs: VariableLHS[~R~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~v~0,] left hand side expression in assignment: lhs: VariableLHS[~r~0,] left hand side expression in assignment: lhs: VariableLHS[~u~0,] [2021-01-06 17:38:11,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 17:38:11,335 INFO L208 MainTranslator]: Completed translation [2021-01-06 17:38:11,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11 WrapperNode [2021-01-06 17:38:11,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 17:38:11,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 17:38:11,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 17:38:11,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 17:38:11,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 17:38:11,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 17:38:11,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 17:38:11,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 17:38:11,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (1/1) ... [2021-01-06 17:38:11,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 17:38:11,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 17:38:11,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 17:38:11,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 17:38:11,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (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 17:38:11,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 17:38:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 17:38:11,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 17:38:11,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 17:38:11,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 17:38:11,806 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2021-01-06 17:38:11,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:38:11 BoogieIcfgContainer [2021-01-06 17:38:11,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 17:38:11,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 17:38:11,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 17:38:11,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 17:38:11,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 05:38:10" (1/3) ... [2021-01-06 17:38:11,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cbdb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:38:11, skipping insertion in model container [2021-01-06 17:38:11,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 05:38:11" (2/3) ... [2021-01-06 17:38:11,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12cbdb47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 05:38:11, skipping insertion in model container [2021-01-06 17:38:11,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:38:11" (3/3) ... [2021-01-06 17:38:11,842 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound1.c [2021-01-06 17:38:11,848 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 17:38:11,858 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-01-06 17:38:11,906 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-01-06 17:38:11,956 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 17:38:11,957 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 17:38:11,957 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 17:38:11,962 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 17:38:11,962 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 17:38:11,963 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 17:38:11,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 17:38:11,963 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 17:38:11,984 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-01-06 17:38:11,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:38:11,990 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:38:11,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:38:11,991 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:38:11,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:38:11,998 INFO L82 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2021-01-06 17:38:12,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:38:12,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323805119] [2021-01-06 17:38:12,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:38:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:38:12,159 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 17:38:12,160 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323805119] [2021-01-06 17:38:12,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:38:12,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-06 17:38:12,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737388687] [2021-01-06 17:38:12,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-01-06 17:38:12,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:38:12,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-01-06 17:38:12,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:38:12,185 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2021-01-06 17:38:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:38:12,204 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2021-01-06 17:38:12,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-01-06 17:38:12,205 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2021-01-06 17:38:12,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:38:12,214 INFO L225 Difference]: With dead ends: 45 [2021-01-06 17:38:12,215 INFO L226 Difference]: Without dead ends: 20 [2021-01-06 17:38:12,218 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-01-06 17:38:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-06 17:38:12,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-01-06 17:38:12,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-06 17:38:12,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-01-06 17:38:12,259 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2021-01-06 17:38:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:38:12,260 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-01-06 17:38:12,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-01-06 17:38:12,260 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-01-06 17:38:12,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-01-06 17:38:12,260 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 17:38:12,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 17:38:12,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 17:38:12,261 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 17:38:12,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 17:38:12,262 INFO L82 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2021-01-06 17:38:12,264 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 17:38:12,264 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447086315] [2021-01-06 17:38:12,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 17:38:12,297 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 17:38:12,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1395274287] [2021-01-06 17:38:12,298 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 17:38:12,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 17:38:12,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 27 conjunts are in the unsatisfiable core [2021-01-06 17:38:12,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 17:38:19,765 WARN L197 SmtUtils]: Spent 7.21 s on a formula simplification that was a NOOP. DAG size: 22 [2021-01-06 17:38:20,026 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 17:38:20,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447086315] [2021-01-06 17:38:20,027 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 17:38:20,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395274287] [2021-01-06 17:38:20,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 17:38:20,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-01-06 17:38:20,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201683932] [2021-01-06 17:38:20,030 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-01-06 17:38:20,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 17:38:20,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-01-06 17:38:20,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-01-06 17:38:20,032 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 10 states. [2021-01-06 17:38:38,645 WARN L197 SmtUtils]: Spent 18.40 s on a formula simplification. DAG size of input: 53 DAG size of output: 33 [2021-01-06 17:39:07,485 WARN L197 SmtUtils]: Spent 28.82 s on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2021-01-06 17:39:14,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 17:39:14,789 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2021-01-06 17:39:14,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-01-06 17:39:14,790 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2021-01-06 17:39:14,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 17:39:14,791 INFO L225 Difference]: With dead ends: 25 [2021-01-06 17:39:14,791 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 17:39:14,793 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 54.8s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2021-01-06 17:39:14,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 17:39:14,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 17:39:14,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 17:39:14,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 17:39:14,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-01-06 17:39:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 17:39:14,794 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 17:39:14,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-01-06 17:39:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 17:39:14,795 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 17:39:15,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-01-06 17:39:15,005 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 17:39:15,083 INFO L189 CegarLoopUtils]: For program point L35-2(lines 35 46) no Hoare annotation was computed. [2021-01-06 17:39:15,084 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-01-06 17:39:15,084 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 17:39:15,084 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 17:39:15,084 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 17:39:15,084 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-01-06 17:39:15,085 INFO L189 CegarLoopUtils]: For program point L12(lines 12 15) no Hoare annotation was computed. [2021-01-06 17:39:15,086 INFO L185 CegarLoopUtils]: At program point L12-2(line 37) the Hoare annotation is: (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (< (+ .cse0 1) (+ ULTIMATE.start_main_~A~0 (* 2 .cse1))) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (<= ULTIMATE.start_main_~A~0 1) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (< (+ (* ULTIMATE.start_main_~R~0 ULTIMATE.start_main_~R~0) 1) (+ (* 2 ULTIMATE.start_main_~R~0) ULTIMATE.start_main_~A~0)) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= .cse0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (= ULTIMATE.start_main_~v~0 1)))) [2021-01-06 17:39:15,086 INFO L189 CegarLoopUtils]: For program point L12-3(lines 12 15) no Hoare annotation was computed. [2021-01-06 17:39:15,087 INFO L189 CegarLoopUtils]: For program point L8(lines 8 10) no Hoare annotation was computed. [2021-01-06 17:39:15,087 INFO L189 CegarLoopUtils]: For program point L8-1(lines 8 10) no Hoare annotation was computed. [2021-01-06 17:39:15,087 INFO L192 CegarLoopUtils]: At program point L12-5(lines 11 17) the Hoare annotation is: true [2021-01-06 17:39:15,087 INFO L189 CegarLoopUtils]: For program point L8-2(lines 8 10) no Hoare annotation was computed. [2021-01-06 17:39:15,088 INFO L189 CegarLoopUtils]: For program point L8-3(lines 8 10) no Hoare annotation was computed. [2021-01-06 17:39:15,088 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 17:39:15,091 INFO L192 CegarLoopUtils]: At program point L50(lines 19 51) the Hoare annotation is: true [2021-01-06 17:39:15,092 INFO L189 CegarLoopUtils]: For program point L13(lines 13 14) no Hoare annotation was computed. [2021-01-06 17:39:15,092 INFO L189 CegarLoopUtils]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2021-01-06 17:39:15,092 INFO L189 CegarLoopUtils]: For program point L9(line 9) no Hoare annotation was computed. [2021-01-06 17:39:15,093 INFO L189 CegarLoopUtils]: For program point L9-2(line 9) no Hoare annotation was computed. [2021-01-06 17:39:15,093 INFO L189 CegarLoopUtils]: For program point L9-4(line 9) no Hoare annotation was computed. [2021-01-06 17:39:15,093 INFO L189 CegarLoopUtils]: For program point L9-6(line 9) no Hoare annotation was computed. [2021-01-06 17:39:15,098 INFO L189 CegarLoopUtils]: For program point L39(lines 39 45) no Hoare annotation was computed. [2021-01-06 17:39:15,098 INFO L185 CegarLoopUtils]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse0 (* .cse1 .cse1))) (and (< (+ .cse0 1) (+ ULTIMATE.start_main_~A~0 (* 2 .cse1))) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (<= ULTIMATE.start_main_~A~0 1) (< (+ (* ULTIMATE.start_main_~R~0 ULTIMATE.start_main_~R~0) 1) (+ (* 2 ULTIMATE.start_main_~R~0) ULTIMATE.start_main_~A~0)) (= ULTIMATE.start_assume_abort_if_not_~cond 1) (= .cse0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (= ULTIMATE.start_main_~v~0 1)))) [2021-01-06 17:39:15,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 05:39:15 BoogieIcfgContainer [2021-01-06 17:39:15,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 17:39:15,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 17:39:15,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 17:39:15,119 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 17:39:15,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 05:38:11" (3/4) ... [2021-01-06 17:39:15,123 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 17:39:15,132 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-01-06 17:39:15,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 17:39:15,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:39:15,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 17:39:15,186 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/nla-digbench-scaling/fermat2-ll_valuebound1.c-witness.graphml [2021-01-06 17:39:15,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 17:39:15,188 INFO L168 Benchmark]: Toolchain (without parser) took 64197.36 ms. Allocated memory is still 158.3 MB. Free memory was 133.9 MB in the beginning and 105.2 MB in the end (delta: 28.7 MB). Peak memory consumption was 29.6 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,189 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory was 131.1 MB in the beginning and 131.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:39:15,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.79 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 123.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.16 ms. Allocated memory is still 158.3 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 17:39:15,192 INFO L168 Benchmark]: Boogie Preprocessor took 26.83 ms. Allocated memory is still 158.3 MB. Free memory was 122.1 MB in the beginning and 121.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,192 INFO L168 Benchmark]: RCFGBuilder took 400.30 ms. Allocated memory is still 158.3 MB. Free memory was 121.0 MB in the beginning and 107.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,193 INFO L168 Benchmark]: TraceAbstraction took 63283.21 ms. Allocated memory is still 158.3 MB. Free memory was 140.9 MB in the beginning and 107.8 MB in the end (delta: 33.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,194 INFO L168 Benchmark]: Witness Printer took 68.71 ms. Allocated memory is still 158.3 MB. Free memory was 107.8 MB in the beginning and 105.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 17:39:15,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 158.3 MB. Free memory was 131.1 MB in the beginning and 131.0 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 339.79 ms. Allocated memory is still 158.3 MB. Free memory was 133.6 MB in the beginning and 123.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.16 ms. Allocated memory is still 158.3 MB. Free memory was 123.6 MB in the beginning and 122.1 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.83 ms. Allocated memory is still 158.3 MB. Free memory was 122.1 MB in the beginning and 121.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.30 ms. Allocated memory is still 158.3 MB. Free memory was 121.0 MB in the beginning and 107.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 63283.21 ms. Allocated memory is still 158.3 MB. Free memory was 140.9 MB in the beginning and 107.8 MB in the end (delta: 33.0 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Witness Printer took 68.71 ms. Allocated memory is still 158.3 MB. Free memory was 107.8 MB in the beginning and 105.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((u * -1 + 1) / -2 * ((u * -1 + 1) / -2) + 1 < A + 2 * ((u * -1 + 1) / -2) && (u + 1) % -2 == 0) && A <= 1) && 1 == cond) && R * R + 1 < 2 * R + A) && cond == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == r + A) && v == 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((u * -1 + 1) / -2 * ((u * -1 + 1) / -2) + 1 < A + 2 * ((u * -1 + 1) / -2) && (u + 1) % -2 == 0) && A <= 1) && R * R + 1 < 2 * R + A) && cond == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == r + A) && v == 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 63.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 54.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 29 SDslu, 7 SDs, 0 SdLazy, 39 SolverSat, 15 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 7.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 54.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 157 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 2868 SizeOfPredicates, 12 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 27 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 correct! Received shutdown request...