java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:04:27,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:04:27,728 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:04:27,744 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:04:27,745 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:04:27,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:04:27,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:04:27,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:04:27,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:04:27,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:04:27,769 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:04:27,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:04:27,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:04:27,774 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:04:27,776 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:04:27,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:04:27,779 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:04:27,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:04:27,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:04:27,788 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:04:27,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:04:27,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:04:27,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:04:27,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:04:27,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:04:27,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:04:27,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:04:27,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:04:27,815 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 03:04:27,849 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:04:27,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:04:27,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:04:27,851 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:04:27,851 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:04:27,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:04:27,851 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:04:27,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:04:27,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:04:27,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:04:27,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:04:27,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:04:27,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:04:27,857 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:04:27,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:04:27,857 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:04:27,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:04:27,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:04:27,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:04:27,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:04:27,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:04:27,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:04:27,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:04:27,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:04:27,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:04:27,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:04:27,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:04:27,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:04:27,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:04:28,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:04:28,230 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:04:28,235 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:04:28,236 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:04:28,237 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:04:28,240 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-10-15 03:04:28,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafe5fdff/3b27300221ad40389c2a9e1955c62602/FLAG1f677862b [2019-10-15 03:04:28,912 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:04:28,913 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-10-15 03:04:28,922 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafe5fdff/3b27300221ad40389c2a9e1955c62602/FLAG1f677862b [2019-10-15 03:04:29,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bafe5fdff/3b27300221ad40389c2a9e1955c62602 [2019-10-15 03:04:29,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:04:29,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:04:29,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:29,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:04:29,341 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:04:29,342 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@100f17a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29, skipping insertion in model container [2019-10-15 03:04:29,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,356 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:04:29,380 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:04:29,634 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:29,639 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:04:29,663 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:04:29,676 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:04:29,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29 WrapperNode [2019-10-15 03:04:29,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:04:29,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:04:29,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:04:29,678 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:04:29,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,810 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,818 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (1/1) ... [2019-10-15 03:04:29,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:04:29,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:04:29,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:04:29,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:04:29,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (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 [2019-10-15 03:04:29,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:04:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:04:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:04:29,880 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:04:29,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:04:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-10-15 03:04:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 03:04:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:04:29,881 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:04:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:04:29,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:04:30,191 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:04:30,193 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 03:04:30,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:30 BoogieIcfgContainer [2019-10-15 03:04:30,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:04:30,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:04:30,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:04:30,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:04:30,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:04:29" (1/3) ... [2019-10-15 03:04:30,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193dd86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:30, skipping insertion in model container [2019-10-15 03:04:30,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:04:29" (2/3) ... [2019-10-15 03:04:30,217 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193dd86f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:04:30, skipping insertion in model container [2019-10-15 03:04:30,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:04:30" (3/3) ... [2019-10-15 03:04:30,220 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-10-15 03:04:30,233 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:04:30,243 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:04:30,258 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:04:30,285 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:04:30,285 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:04:30,285 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:04:30,286 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:04:30,286 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:04:30,286 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:04:30,286 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:04:30,286 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:04:30,306 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-15 03:04:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:04:30,313 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:30,314 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:30,317 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:30,322 INFO L82 PathProgramCache]: Analyzing trace with hash 1056363416, now seen corresponding path program 1 times [2019-10-15 03:04:30,332 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:30,332 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427655789] [2019-10-15 03:04:30,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:30,333 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:30,333 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:30,401 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:04:30,402 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1272228301] [2019-10-15 03:04:30,402 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 [2019-10-15 03:04:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:30,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-15 03:04:30,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:30,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:30,476 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:30,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427655789] [2019-10-15 03:04:30,497 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:04:30,497 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272228301] [2019-10-15 03:04:30,498 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:04:30,499 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-15 03:04:30,499 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809238584] [2019-10-15 03:04:30,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 03:04:30,504 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 03:04:30,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:04:30,522 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-15 03:04:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:30,551 INFO L93 Difference]: Finished difference Result 45 states and 67 transitions. [2019-10-15 03:04:30,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 03:04:30,553 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-15 03:04:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:30,563 INFO L225 Difference]: With dead ends: 45 [2019-10-15 03:04:30,564 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 03:04:30,568 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 03:04:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 03:04:30,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 03:04:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 03:04:30,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-10-15 03:04:30,611 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 10 [2019-10-15 03:04:30,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:30,611 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-10-15 03:04:30,611 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 03:04:30,612 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-10-15 03:04:30,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:04:30,613 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:30,613 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:30,819 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:30,820 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:30,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:30,821 INFO L82 PathProgramCache]: Analyzing trace with hash 989691158, now seen corresponding path program 1 times [2019-10-15 03:04:30,821 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:30,822 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203945345] [2019-10-15 03:04:30,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:30,822 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:30,822 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:30,826 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:04:30,827 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996534486] [2019-10-15 03:04:30,827 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:30,874 WARN L254 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-15 03:04:30,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:31,071 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2019-10-15 03:04:31,087 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:04:39,914 WARN L191 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 34 DAG size of output: 3 [2019-10-15 03:04:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:39,939 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:42,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203945345] [2019-10-15 03:04:42,121 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:04:42,121 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996534486] [2019-10-15 03:04:42,122 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:04:42,122 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-15 03:04:42,122 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137024331] [2019-10-15 03:04:42,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 03:04:42,125 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:42,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 03:04:42,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=40, Unknown=1, NotChecked=0, Total=56 [2019-10-15 03:04:42,126 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 8 states. [2019-10-15 03:04:48,488 WARN L191 SmtUtils]: Spent 6.33 s on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2019-10-15 03:04:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:52,276 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2019-10-15 03:04:52,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:04:52,277 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-15 03:04:52,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:52,280 INFO L225 Difference]: With dead ends: 33 [2019-10-15 03:04:52,281 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 03:04:52,282 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2019-10-15 03:04:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 03:04:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2019-10-15 03:04:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 03:04:52,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-15 03:04:52,293 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2019-10-15 03:04:52,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:52,294 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-15 03:04:52,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 03:04:52,294 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-15 03:04:52,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 03:04:52,295 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:04:52,295 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:04:52,499 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:52,499 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:04:52,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:04:52,501 INFO L82 PathProgramCache]: Analyzing trace with hash -732641273, now seen corresponding path program 1 times [2019-10-15 03:04:52,501 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:04:52,502 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611700261] [2019-10-15 03:04:52,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:52,502 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:04:52,502 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:04:52,507 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 03:04:52,507 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1386077907] [2019-10-15 03:04:52,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:04:52,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-15 03:04:52,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:04:52,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:04:52,702 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:52,702 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:04:52,806 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:04:52,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:04:52,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:04:52,896 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611700261] [2019-10-15 03:04:52,897 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 03:04:52,897 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1386077907] [2019-10-15 03:04:52,898 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [18082495] [2019-10-15 03:04:52,930 INFO L162 IcfgInterpreter]: Started Sifa with 15 locations of interest [2019-10-15 03:04:52,930 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:04:52,959 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:04:52,972 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:04:52,973 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:04:53,051 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-15 03:04:53,473 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2019-10-15 03:04:53,537 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-15 03:04:53,540 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:04:54,042 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-15 03:04:54,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 20 [2019-10-15 03:04:54,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560236166] [2019-10-15 03:04:54,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-10-15 03:04:54,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:04:54,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-10-15 03:04:54,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2019-10-15 03:04:54,045 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 20 states. [2019-10-15 03:04:56,725 WARN L191 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-10-15 03:04:59,312 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2019-10-15 03:04:59,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:04:59,410 INFO L93 Difference]: Finished difference Result 43 states and 59 transitions. [2019-10-15 03:04:59,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-15 03:04:59,410 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 16 [2019-10-15 03:04:59,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:04:59,411 INFO L225 Difference]: With dead ends: 43 [2019-10-15 03:04:59,411 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:04:59,412 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=106, Invalid=445, Unknown=1, NotChecked=0, Total=552 [2019-10-15 03:04:59,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:04:59,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:04:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:04:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:04:59,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-15 03:04:59,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:04:59,413 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:04:59,413 INFO L463 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-10-15 03:04:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:04:59,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:04:59,616 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:04:59,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:05:01,783 WARN L191 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2019-10-15 03:05:02,020 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 24 [2019-10-15 03:05:02,022 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 03:05:02,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:05:02,022 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:05:02,022 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 03:05:02,023 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:05:02,023 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:05:02,023 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 14 52) no Hoare annotation was computed. [2019-10-15 03:05:02,023 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 28 48) the Hoare annotation is: (let ((.cse4 (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0))) (.cse1 (* main_~v~0 main_~v~0)) (.cse2 (* 4 main_~A~0)) (.cse3 (* 2 main_~u~0))) (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ .cse1 .cse2 .cse3) .cse4) (= .cse4 (+ .cse1 .cse2 (* 4 main_~r~0) .cse3)))) [2019-10-15 03:05:02,023 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-10-15 03:05:02,024 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 03:05:02,024 INFO L439 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 03:05:02,024 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 03:05:02,024 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 28 48) no Hoare annotation was computed. [2019-10-15 03:05:02,025 INFO L443 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-10-15 03:05:02,025 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 03:05:02,025 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 41 47) no Hoare annotation was computed. [2019-10-15 03:05:02,025 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 03:05:02,025 INFO L443 ceAbstractionStarter]: For program point L34-1(lines 33 39) no Hoare annotation was computed. [2019-10-15 03:05:02,026 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 14 52) the Hoare annotation is: true [2019-10-15 03:05:02,026 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2019-10-15 03:05:02,026 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2019-10-15 03:05:02,026 INFO L443 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-10-15 03:05:02,026 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-10-15 03:05:02,026 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 6 12) no Hoare annotation was computed. [2019-10-15 03:05:02,026 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-15 03:05:02,034 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,035 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,044 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,045 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,046 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:05:02 BoogieIcfgContainer [2019-10-15 03:05:02,051 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:05:02,053 INFO L168 Benchmark]: Toolchain (without parser) took 32720.12 ms. Allocated memory was 137.9 MB in the beginning and 244.3 MB in the end (delta: 106.4 MB). Free memory was 100.8 MB in the beginning and 191.2 MB in the end (delta: -90.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,054 INFO L168 Benchmark]: CDTParser took 3.05 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.07 ms. Allocated memory is still 137.9 MB. Free memory was 100.2 MB in the beginning and 90.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,056 INFO L168 Benchmark]: Boogie Preprocessor took 142.81 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.2 MB in the beginning and 180.2 MB in the end (delta: -89.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,057 INFO L168 Benchmark]: RCFGBuilder took 378.12 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 166.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,058 INFO L168 Benchmark]: TraceAbstraction took 31851.20 ms. Allocated memory was 202.4 MB in the beginning and 244.3 MB in the end (delta: 41.9 MB). Free memory was 166.5 MB in the beginning and 191.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-10-15 03:05:02,062 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.05 ms. Allocated memory is still 137.9 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 340.07 ms. Allocated memory is still 137.9 MB. Free memory was 100.2 MB in the beginning and 90.2 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.81 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 90.2 MB in the beginning and 180.2 MB in the end (delta: -89.9 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 378.12 ms. Allocated memory is still 202.4 MB. Free memory was 180.2 MB in the beginning and 166.5 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31851.20 ms. Allocated memory was 202.4 MB in the beginning and 244.3 MB in the end (delta: 41.9 MB). Free memory was 166.5 MB in the beginning and 191.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] * 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant [2019-10-15 03:05:02,071 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,071 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,072 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,072 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - InvariantResult [Line: 33]: Loop Invariant [2019-10-15 03:05:02,073 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,073 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,073 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 03:05:02,074 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 31.7s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 15.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, HoareTripleCheckerStatistics: 59 SDtfs, 85 SDslu, 170 SDs, 0 SdLazy, 212 SolverSat, 79 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 92 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 26 PreInvPairs, 44 NumberOfFragments, 215 HoareAnnotationTreeSize, 26 FomulaSimplifications, 1240 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 551 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 4 QuantifiedInterpolants, 4347 SizeOfPredicates, 11 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 610, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 28, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 14, TOOLS_POST_TIME[ms]: 3, TOOLS_POST_CALL_APPLICATIONS: 8, TOOLS_POST_CALL_TIME[ms]: 133, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 7, TOOLS_QUANTIFIERELIM_APPLICATIONS: 26, TOOLS_QUANTIFIERELIM_TIME[ms]: 132, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 63, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 28, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 24, DOMAIN_JOIN_TIME[ms]: 335, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 26, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 21, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 20, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 7, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 19, DAG_COMPRESSION_PROCESSED_NODES: 81, DAG_COMPRESSION_RETAINED_NODES: 50, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...