/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/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/loop-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 04:02:28,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 04:02:28,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 04:02:28,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 04:02:28,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 04:02:28,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 04:02:28,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 04:02:28,396 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 04:02:28,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 04:02:28,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 04:02:28,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 04:02:28,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 04:02:28,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 04:02:28,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 04:02:28,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 04:02:28,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 04:02:28,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 04:02:28,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 04:02:28,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 04:02:28,409 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 04:02:28,410 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 04:02:28,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 04:02:28,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 04:02:28,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 04:02:28,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 04:02:28,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 04:02:28,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 04:02:28,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 04:02:28,426 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 [2019-11-07 04:02:28,440 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 04:02:28,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 04:02:28,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 04:02:28,442 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 04:02:28,442 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 04:02:28,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 04:02:28,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 04:02:28,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 04:02:28,444 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 04:02:28,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 04:02:28,444 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 04:02:28,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 04:02:28,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 04:02:28,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 04:02:28,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 04:02:28,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 04:02:28,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 04:02:28,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 04:02:28,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 04:02:28,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 04:02:28,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 04:02:28,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 04:02:28,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 04:02:28,448 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 [2019-11-07 04:02:28,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 04:02:28,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 04:02:28,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 04:02:28,720 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 04:02:28,721 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 04:02:28,722 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-11-07 04:02:28,780 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af41944/2c43f8516d2e4fc89e3684f809c8ecb1/FLAGea3c4281b [2019-11-07 04:02:29,221 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 04:02:29,222 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-11-07 04:02:29,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af41944/2c43f8516d2e4fc89e3684f809c8ecb1/FLAGea3c4281b [2019-11-07 04:02:29,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10af41944/2c43f8516d2e4fc89e3684f809c8ecb1 [2019-11-07 04:02:29,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 04:02:29,647 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 04:02:29,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 04:02:29,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 04:02:29,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 04:02:29,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:29,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@601ee283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29, skipping insertion in model container [2019-11-07 04:02:29,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:29,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 04:02:29,690 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 04:02:29,872 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:02:29,877 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 04:02:29,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 04:02:29,928 INFO L192 MainTranslator]: Completed translation [2019-11-07 04:02:29,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29 WrapperNode [2019-11-07 04:02:29,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 04:02:29,930 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 04:02:29,930 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 04:02:29,930 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 04:02:30,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (1/1) ... [2019-11-07 04:02:30,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 04:02:30,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 04:02:30,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 04:02:30,056 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 04:02:30,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (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 [2019-11-07 04:02:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 04:02:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 04:02:30,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 04:02:30,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 04:02:30,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 04:02:30,356 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 04:02:30,356 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-11-07 04:02:30,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:02:30 BoogieIcfgContainer [2019-11-07 04:02:30,358 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 04:02:30,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 04:02:30,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 04:02:30,371 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 04:02:30,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:02:29" (1/3) ... [2019-11-07 04:02:30,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@937f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:02:30, skipping insertion in model container [2019-11-07 04:02:30,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:02:29" (2/3) ... [2019-11-07 04:02:30,373 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@937f2fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:02:30, skipping insertion in model container [2019-11-07 04:02:30,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:02:30" (3/3) ... [2019-11-07 04:02:30,379 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2019-11-07 04:02:30,401 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 04:02:30,418 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 04:02:30,430 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 04:02:30,454 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 04:02:30,454 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 04:02:30,454 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 04:02:30,454 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 04:02:30,455 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 04:02:30,455 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 04:02:30,455 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 04:02:30,455 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 04:02:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-11-07 04:02:30,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 04:02:30,479 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:30,480 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:30,483 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:30,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:30,489 INFO L82 PathProgramCache]: Analyzing trace with hash 709025904, now seen corresponding path program 1 times [2019-11-07 04:02:30,498 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:30,498 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176249965] [2019-11-07 04:02:30,498 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:30,584 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 04:02:30,585 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [292720186] [2019-11-07 04:02:30,585 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 [2019-11-07 04:02:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:30,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-07 04:02:30,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:02:30,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:02:30,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:30,875 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:02:31,293 WARN L860 $PredicateComparison]: unable to prove that (forall ((main_~main__n~0 Int)) (let ((.cse0 (+ c_main_~main__i~0 1))) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 4 c_main_~main__i~0) 2)) (< main_~main__n~0 .cse0) (< .cse0 main_~main__n~0)))) is different from true [2019-11-07 04:02:31,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:31,360 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176249965] [2019-11-07 04:02:31,360 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 04:02:31,361 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292720186] [2019-11-07 04:02:31,361 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-07 04:02:31,362 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 6] imperfect sequences [] total 13 [2019-11-07 04:02:31,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702855767] [2019-11-07 04:02:31,368 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-07 04:02:31,369 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:02:31,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-07 04:02:31,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=104, Unknown=2, NotChecked=20, Total=156 [2019-11-07 04:02:31,387 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 13 states. [2019-11-07 04:02:32,020 WARN L860 $PredicateComparison]: unable to prove that (and (or (= (* c_main_~main__n~0 (+ c_main_~main__n~0 1)) (* 2 c_main_~main__sum~0)) (<= c_main_~main__i~0 c_main_~main__n~0)) (forall ((main_~main__n~0 Int)) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 2 c_main_~main__i~0))) (< c_main_~main__i~0 main_~main__n~0) (< main_~main__n~0 c_main_~main__i~0)))) is different from true [2019-11-07 04:02:32,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:02:32,261 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2019-11-07 04:02:32,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-07 04:02:32,264 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 15 [2019-11-07 04:02:32,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:02:32,277 INFO L225 Difference]: With dead ends: 44 [2019-11-07 04:02:32,278 INFO L226 Difference]: Without dead ends: 18 [2019-11-07 04:02:32,286 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 16 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=275, Unknown=3, NotChecked=70, Total=420 [2019-11-07 04:02:32,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-07 04:02:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-07 04:02:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-07 04:02:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-11-07 04:02:32,336 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2019-11-07 04:02:32,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:02:32,337 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-11-07 04:02:32,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-07 04:02:32,337 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-11-07 04:02:32,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-07 04:02:32,338 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 04:02:32,339 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 04:02:32,543 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:02:32,543 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 04:02:32,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 04:02:32,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1527904976, now seen corresponding path program 1 times [2019-11-07 04:02:32,544 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 04:02:32,545 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336909742] [2019-11-07 04:02:32,545 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 04:02:32,557 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-07 04:02:32,557 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675682455] [2019-11-07 04:02:32,557 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 [2019-11-07 04:02:32,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 04:02:32,615 WARN L254 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 39 conjunts are in the unsatisfiable core [2019-11-07 04:02:32,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 04:02:32,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-07 04:02:32,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 04:02:32,755 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 04:02:32,990 WARN L860 $PredicateComparison]: unable to prove that (forall ((main_~main__n~0 Int)) (let ((.cse0 (+ c_main_~main__i~0 1))) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 4 c_main_~main__i~0) 2)) (< main_~main__n~0 .cse0) (< .cse0 main_~main__n~0)))) is different from true [2019-11-07 04:02:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2019-11-07 04:02:33,505 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336909742] [2019-11-07 04:02:33,505 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-07 04:02:33,505 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675682455] [2019-11-07 04:02:33,505 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [380811087] [2019-11-07 04:02:33,528 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2019-11-07 04:02:33,528 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 04:02:33,535 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 04:02:33,542 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 04:02:33,543 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 04:02:33,635 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 12 for LOIs [2019-11-07 04:02:33,880 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-11-07 04:02:33,882 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 04:02:34,152 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2019-11-07 04:02:34,976 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2019-11-07 04:02:34,978 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-07 04:02:34,978 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 13] total 29 [2019-11-07 04:02:34,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782730321] [2019-11-07 04:02:34,982 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-11-07 04:02:34,983 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 04:02:34,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-11-07 04:02:34,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=620, Unknown=8, NotChecked=52, Total=812 [2019-11-07 04:02:34,985 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 29 states. [2019-11-07 04:02:35,545 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2019-11-07 04:02:50,749 WARN L191 SmtUtils]: Spent 14.85 s on a formula simplification. DAG size of input: 46 DAG size of output: 35 [2019-11-07 04:02:54,982 WARN L191 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-11-07 04:02:56,012 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~main__n~0 (+ c_main_~main__n~0 1)))) (and (= c_~__return_main~0 |c_old(~__return_main~0)|) (< c_main_~main__n~0 c_main_~main__i~0) (<= 15 c_main_~main__sum~0) (<= c_~__return_96~0 0) (= c_main_~__tmp_1~0 c_main_~__VERIFIER_assert__cond~0) (or (= .cse0 (* 2 c_main_~main__sum~0)) (<= c_main_~main__i~0 c_main_~main__n~0)) (<= 0 c_~__return_96~0) (forall ((main_~main__n~0 Int)) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 2 c_main_~main__i~0))) (< c_main_~main__i~0 main_~main__n~0) (< main_~main__n~0 c_main_~main__i~0))) (= (ite (= .cse0 (* c_main_~main__sum~0 2)) 1 0) c_main_~__tmp_1~0) (<= c_main_~main__n~0 1000) (= c_main_~__VERIFIER_assert__cond~0 1) (= |c_old(~__return_96~0)| 0) (= c_~__return_main~0 0) (= |c_old(~__return_96~0)| c_~__return_96~0) (forall ((main_~main__n~0 Int)) (let ((.cse1 (+ c_main_~main__i~0 2))) (or (< main_~main__n~0 .cse1) (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 6 c_main_~main__i~0) 6)) (< .cse1 main_~main__n~0)))) (<= 5 c_main_~main__n~0))) is different from false [2019-11-07 04:02:56,041 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (* c_main_~main__n~0 (+ c_main_~main__n~0 1)))) (and (= c_~__return_main~0 |c_old(~__return_main~0)|) (< c_main_~main__n~0 c_main_~main__i~0) (<= 15 c_main_~main__sum~0) (<= c_~__return_96~0 0) (= c_main_~__tmp_1~0 c_main_~__VERIFIER_assert__cond~0) (or (= .cse0 (* 2 c_main_~main__sum~0)) (<= c_main_~main__i~0 c_main_~main__n~0)) (<= 0 c_~__return_96~0) (forall ((main_~main__n~0 Int)) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 2 c_main_~main__i~0))) (< c_main_~main__i~0 main_~main__n~0) (< main_~main__n~0 c_main_~main__i~0))) (= (ite (= .cse0 (* c_main_~main__sum~0 2)) 1 0) c_main_~__tmp_1~0) (<= c_main_~main__n~0 1000) (= c_main_~__VERIFIER_assert__cond~0 1) (= |c_old(~__return_96~0)| 0) (= c_~__return_main~0 0) (= |c_old(~__return_96~0)| c_~__return_96~0) (forall ((main_~main__n~0 Int)) (let ((.cse1 (+ c_main_~main__i~0 2))) (or (< main_~main__n~0 .cse1) (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 c_main_~main__sum~0) (* 6 c_main_~main__i~0) 6)) (< .cse1 main_~main__n~0)))) (<= 5 c_main_~main__n~0))) is different from true [2019-11-07 04:02:56,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 04:02:56,042 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-11-07 04:02:56,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-11-07 04:02:56,043 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 17 [2019-11-07 04:02:56,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 04:02:56,043 INFO L225 Difference]: With dead ends: 20 [2019-11-07 04:02:56,044 INFO L226 Difference]: Without dead ends: 0 [2019-11-07 04:02:56,046 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 19 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 22.5s TimeCoverageRelationStatistics Valid=312, Invalid=1326, Unknown=10, NotChecked=158, Total=1806 [2019-11-07 04:02:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-07 04:02:56,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-07 04:02:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-07 04:02:56,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-07 04:02:56,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-07 04:02:56,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 04:02:56,047 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-07 04:02:56,047 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-11-07 04:02:56,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-07 04:02:56,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-07 04:02:56,248 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 04:02:56,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-07 04:03:01,927 WARN L191 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 68 DAG size of output: 36 [2019-11-07 04:03:01,929 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= |old(~__return_96~0)| ~__return_96~0)) [2019-11-07 04:03:01,930 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:03:01,930 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-07 04:03:01,930 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~__return_96~0) (= ~__return_main~0 0)) [2019-11-07 04:03:01,930 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-07 04:03:01,930 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-07 04:03:01,930 INFO L443 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 71) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 8 101) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 8 101) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point L44(lines 44 78) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 64) no Hoare annotation was computed. [2019-11-07 04:03:01,931 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 83) no Hoare annotation was computed. [2019-11-07 04:03:01,932 INFO L443 ceAbstractionStarter]: For program point L36(lines 36 88) no Hoare annotation was computed. [2019-11-07 04:03:01,932 INFO L443 ceAbstractionStarter]: For program point L32(lines 32 93) no Hoare annotation was computed. [2019-11-07 04:03:01,932 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 8 101) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (not (= |old(~__return_96~0)| 0)) (= |old(~__return_96~0)| ~__return_96~0)) [2019-11-07 04:03:01,932 INFO L443 ceAbstractionStarter]: For program point L28(lines 28 98) no Hoare annotation was computed. [2019-11-07 04:03:01,932 INFO L439 ceAbstractionStarter]: At program point L53(lines 45 74) the Hoare annotation is: (or (not (= 0 ~__return_main~0)) (not (= |old(~__return_96~0)| 0)) (and (<= main_~main__n~0 1000) (<= 6 main_~main__i~0) (or (= (* main_~main__n~0 (+ main_~main__n~0 1)) (* 2 main_~main__sum~0)) (<= main_~main__i~0 main_~main__n~0)) (= |old(~__return_96~0)| ~__return_96~0) (forall ((main_~main__n~0 Int)) (let ((.cse0 (+ main_~main__i~0 2))) (or (< main_~main__n~0 .cse0) (= (* main_~main__n~0 (+ main_~main__n~0 1)) (+ (* 2 main_~main__sum~0) (* 6 main_~main__i~0) 6)) (< .cse0 main_~main__n~0)))) (<= 5 main_~main__n~0))) [2019-11-07 04:03:01,933 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 99) no Hoare annotation was computed. [2019-11-07 04:03:01,933 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 100) no Hoare annotation was computed. [2019-11-07 04:03:01,941 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,942 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,950 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,951 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 04:03:01 BoogieIcfgContainer [2019-11-07 04:03:01,956 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 04:03:01,958 INFO L168 Benchmark]: Toolchain (without parser) took 32310.86 ms. Allocated memory was 137.9 MB in the beginning and 247.5 MB in the end (delta: 109.6 MB). Free memory was 101.6 MB in the beginning and 137.2 MB in the end (delta: -35.6 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,959 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.29 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,961 INFO L168 Benchmark]: Boogie Preprocessor took 123.59 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 179.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,962 INFO L168 Benchmark]: RCFGBuilder took 302.21 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 166.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,963 INFO L168 Benchmark]: TraceAbstraction took 31594.29 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 166.1 MB in the beginning and 137.2 MB in the end (delta: 28.9 MB). Peak memory consumption was 75.0 MB. Max. memory is 7.1 GB. [2019-11-07 04:03:01,967 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.29 ms. Allocated memory is still 137.9 MB. Free memory was 101.4 MB in the beginning and 91.1 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.59 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 91.1 MB in the beginning and 179.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.21 ms. Allocated memory is still 201.3 MB. Free memory was 179.5 MB in the beginning and 166.1 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31594.29 ms. Allocated memory was 201.3 MB in the beginning and 247.5 MB in the end (delta: 46.1 MB). Free memory was 166.1 MB in the beginning and 137.2 MB in the end (delta: 28.9 MB). Peak memory consumption was 75.0 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_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 64]: 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: 45]: Loop Invariant [2019-11-07 04:03:01,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] [2019-11-07 04:03:01,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~main__n~0,QUANTIFIED] Derived loop invariant: (!(0 == __return_main) || !(\old(__return_96) == 0)) || (((((main__n <= 1000 && 6 <= main__i) && (main__n * (main__n + 1) == 2 * main__sum || main__i <= main__n)) && \old(__return_96) == __return_96) && (forall main_~main__n~0 : int :: (main_~main__n~0 < main__i + 2 || main_~main__n~0 * (main_~main__n~0 + 1) == 2 * main__sum + 6 * main__i + 6) || main__i + 2 < main_~main__n~0)) && 5 <= main__n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 31.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, HoareTripleCheckerStatistics: 31 SDtfs, 67 SDslu, 177 SDs, 0 SdLazy, 314 SolverSat, 78 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 35 SyntacticMatches, 7 SemanticMatches, 60 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 257 ImplicationChecksByTransitivity, 23.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 88 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 203 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 12 QuantifiedInterpolants, 6968 SizeOfPredicates, 12 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 355, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 15, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 16, TOOLS_POST_TIME[ms]: 20, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME[ms]: 4, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 1, TOOLS_QUANTIFIERELIM_APPLICATIONS: 22, TOOLS_QUANTIFIERELIM_TIME[ms]: 18, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 4, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 48, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME[ms]: 44, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 173, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 15, DOMAIN_ISBOTTOM_TIME[ms]: 41, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 189, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 188, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 113, DAG_COMPRESSION_RETAINED_NODES: 48, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...