/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/fermat2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:29:39,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:29:39,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:29:39,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:29:39,519 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:29:39,520 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:29:39,521 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:29:39,523 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:29:39,524 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:29:39,525 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:29:39,526 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:29:39,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:29:39,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:29:39,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:29:39,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:29:39,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:29:39,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:29:39,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:29:39,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:29:39,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:29:39,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:29:39,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:29:39,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:29:39,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:29:39,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-24 04:29:39,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-24 04:29:39,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-24 04:29:39,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-24 04:29:39,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-24 04:29:39,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-24 04:29:39,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:29:39,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:29:39,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:29:39,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:29:39,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:29:39,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:29:39,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:29:39,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:29:39,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:29:39,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:29:39,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:29:39,558 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:29:39,580 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:29:39,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:29:39,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:29:39,581 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:29:39,581 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:29:39,582 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:29:39,582 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:29:39,582 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:29:39,582 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:29:39,582 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:29:39,583 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:29:39,584 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:29:39,584 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:29:39,584 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:29:39,584 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:29:39,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:29:39,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:29:39,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:29:39,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:29:39,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:29:39,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:29:39,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:29:39,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:29:39,588 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:29:39,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:29:39,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:29:39,589 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:29:39,589 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:29:39,590 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:29:39,590 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:29:39,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:29:39,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:29:39,591 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:29:39,591 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:29:39,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:29:39,592 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:29:39,592 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:29:39,592 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:29:39,852 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:29:39,867 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:29:39,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:29:39,872 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:29:39,872 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:29:39,873 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat2.c [2019-11-24 04:29:39,940 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a08642f/9635706cca1e4961a36506020603c930/FLAG48dc5213e [2019-11-24 04:29:40,359 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:29:40,360 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat2.c [2019-11-24 04:29:40,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a08642f/9635706cca1e4961a36506020603c930/FLAG48dc5213e [2019-11-24 04:29:40,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1a08642f/9635706cca1e4961a36506020603c930 [2019-11-24 04:29:40,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:29:40,717 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:29:40,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:29:40,718 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:29:40,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:29:40,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:40,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dc62c15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40, skipping insertion in model container [2019-11-24 04:29:40,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:40,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:29:40,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:29:40,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:29:40,924 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:29:40,943 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:29:40,960 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:29:40,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40 WrapperNode [2019-11-24 04:29:40,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:29:40,961 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:29:40,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:29:40,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:29:40,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:40,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,067 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:29:41,068 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:29:41,068 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:29:41,068 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:29:41,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... [2019-11-24 04:29:41,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:29:41,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:29:41,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:29:41,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:29:41,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:29:41,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:29:41,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:29:41,380 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:29:41,380 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-24 04:29:41,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:29:41 BoogieIcfgContainer [2019-11-24 04:29:41,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:29:41,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:29:41,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:29:41,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:29:41,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:29:40" (1/3) ... [2019-11-24 04:29:41,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecca177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:29:41, skipping insertion in model container [2019-11-24 04:29:41,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:29:40" (2/3) ... [2019-11-24 04:29:41,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ecca177 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:29:41, skipping insertion in model container [2019-11-24 04:29:41,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:29:41" (3/3) ... [2019-11-24 04:29:41,389 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat2.c [2019-11-24 04:29:41,398 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:29:41,406 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 04:29:41,418 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 04:29:41,459 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:29:41,460 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:29:41,460 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:29:41,460 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:29:41,460 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:29:41,461 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:29:41,461 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:29:41,461 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:29:41,480 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-24 04:29:41,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:29:41,487 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:29:41,488 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:29:41,488 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:29:41,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:29:41,495 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-24 04:29:41,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:29:41,505 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301390850] [2019-11-24 04:29:41,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:29:41,576 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:29:41,576 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1095738159] [2019-11-24 04:29:41,576 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:29:41,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:29:41,609 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-24 04:29:41,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:29:41,790 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-11-24 04:29:41,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:29:47,590 WARN L838 $PredicateComparison]: unable to prove that (or (= 1 c_ULTIMATE.start___VERIFIER_assert_~cond) (and (exists ((ULTIMATE.start_main_~u~0 Int) (ULTIMATE.start_main_~r~0 Int)) (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (let ((.cse2 (* .cse1 .cse1))) (and (< (+ ULTIMATE.start_main_~r~0 (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0))) .cse2) (= 1 (mod (+ .cse2 ULTIMATE.start_main_~r~0) 2)) (not (= (+ (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) 1) (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 .cse2)))) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0))))) (= 0 c_ULTIMATE.start___VERIFIER_assert_~cond))) is different from false [2019-11-24 04:29:49,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:29:49,636 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:29:51,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:29:51,687 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301390850] [2019-11-24 04:29:51,687 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:29:51,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095738159] [2019-11-24 04:29:51,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:29:51,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-24 04:29:51,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701031747] [2019-11-24 04:29:51,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:29:51,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:29:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:29:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=13, Unknown=2, NotChecked=6, Total=30 [2019-11-24 04:29:51,706 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2019-11-24 04:29:57,051 WARN L192 SmtUtils]: Spent 5.33 s on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2019-11-24 04:30:10,330 WARN L192 SmtUtils]: Spent 13.26 s on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2019-11-24 04:30:18,361 WARN L192 SmtUtils]: Spent 6.00 s on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-11-24 04:30:18,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:18,804 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2019-11-24 04:30:18,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-24 04:30:18,808 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-24 04:30:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:18,820 INFO L225 Difference]: With dead ends: 30 [2019-11-24 04:30:18,820 INFO L226 Difference]: Without dead ends: 15 [2019-11-24 04:30:18,826 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 30.5s TimeCoverageRelationStatistics Valid=31, Invalid=42, Unknown=3, NotChecked=14, Total=90 [2019-11-24 04:30:18,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-11-24 04:30:18,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 8. [2019-11-24 04:30:18,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-24 04:30:18,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-11-24 04:30:18,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-11-24 04:30:18,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:18,858 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-11-24 04:30:18,858 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 04:30:18,858 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-11-24 04:30:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 04:30:18,859 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:18,859 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:30:19,061 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:19,062 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:19,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:19,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1361018346, now seen corresponding path program 1 times [2019-11-24 04:30:19,064 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:19,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422340547] [2019-11-24 04:30:19,065 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:19,068 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:19,068 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [161842783] [2019-11-24 04:30:19,068 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-24 04:30:19,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:19,097 WARN L253 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-24 04:30:19,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:30:19,156 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:19,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:19,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:19,240 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:30:19,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:19,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:19,360 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422340547] [2019-11-24 04:30:19,361 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:30:19,361 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161842783] [2019-11-24 04:30:19,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:30:19,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-24 04:30:19,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667310207] [2019-11-24 04:30:19,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-24 04:30:19,364 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:30:19,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-24 04:30:19,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=77, Unknown=1, NotChecked=0, Total=110 [2019-11-24 04:30:19,365 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 11 states. [2019-11-24 04:30:19,622 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-11-24 04:30:19,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:19,849 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-24 04:30:19,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-24 04:30:19,849 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-24 04:30:19,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:19,850 INFO L225 Difference]: With dead ends: 14 [2019-11-24 04:30:19,850 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:30:19,852 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=161, Unknown=1, NotChecked=0, Total=240 [2019-11-24 04:30:19,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:30:19,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:30:19,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:30:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:30:19,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-24 04:30:19,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:19,853 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:30:19,853 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-24 04:30:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:30:19,856 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:30:20,059 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:20,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:30:21,344 WARN L192 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-11-24 04:30:21,347 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:30:21,347 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-24 04:30:21,347 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-24 04:30:21,348 INFO L440 ceAbstractionStarter]: At program point L7-2(line 30) the Hoare annotation is: (and (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-11-24 04:30:21,348 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-24 04:30:21,348 INFO L440 ceAbstractionStarter]: At program point L7-5(lines 6 12) the Hoare annotation is: (and (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-11-24 04:30:21,348 INFO L440 ceAbstractionStarter]: At program point L32-2(lines 28 39) the Hoare annotation is: (or (and (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))) (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (and (= 1 (mod ULTIMATE.start_main_~A~0 2)) (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0) (= (mod (+ ULTIMATE.start_main_~u~0 1) (- 2)) 0) (= ULTIMATE.start_main_~v~0 1) (= (* .cse1 .cse1) (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))))) [2019-11-24 04:30:21,348 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:30:21,349 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 39) no Hoare annotation was computed. [2019-11-24 04:30:21,349 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-24 04:30:21,349 INFO L444 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-24 04:30:21,349 INFO L444 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-11-24 04:30:21,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:30:21 BoogieIcfgContainer [2019-11-24 04:30:21,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:30:21,367 INFO L168 Benchmark]: Toolchain (without parser) took 40650.44 ms. Allocated memory was 137.4 MB in the beginning and 232.3 MB in the end (delta: 94.9 MB). Free memory was 101.9 MB in the beginning and 159.9 MB in the end (delta: -58.1 MB). Peak memory consumption was 36.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,368 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-24 04:30:21,369 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.14 ms. Allocated memory is still 137.4 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.41 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 179.9 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,371 INFO L168 Benchmark]: Boogie Preprocessor took 22.15 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 178.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,372 INFO L168 Benchmark]: RCFGBuilder took 291.43 ms. Allocated memory is still 201.3 MB. Free memory was 178.1 MB in the beginning and 164.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,373 INFO L168 Benchmark]: TraceAbstraction took 39983.29 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 159.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:21,378 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 137.4 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.14 ms. Allocated memory is still 137.4 MB. Free memory was 101.7 MB in the beginning and 91.8 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 106.41 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 91.8 MB in the beginning and 179.9 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.15 ms. Allocated memory is still 201.3 MB. Free memory was 179.9 MB in the beginning and 178.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 291.43 ms. Allocated memory is still 201.3 MB. Free memory was 178.1 MB in the beginning and 164.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39983.29 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 159.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u && !(0 == cond) - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u && !(0 == cond) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u && !(0 == cond)) || ((((1 == A % 2 && ((u * -1 + 1) / -2 + -1) * ((u * -1 + 1) / -2 + -1) < A) && (u + 1) % -2 == 0) && v == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == A + r) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 39.8s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 27.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, HoareTripleCheckerStatistics: 7 SDtfs, 40 SDslu, 9 SDs, 0 SdLazy, 44 SolverSat, 21 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 31.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 10 NumberOfFragments, 135 HoareAnnotationTreeSize, 3 FomulaSimplifications, 252 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 271 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 10.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 5 QuantifiedInterpolants, 1878 SizeOfPredicates, 19 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...