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 -i ../../../trunk/examples/svcomp/nla-digbench/geo3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 03:26:05,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 03:26:05,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 03:26:05,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 03:26:05,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 03:26:05,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 03:26:05,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 03:26:05,346 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 [2019-09-08 03:26:05,360 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 03:26:05,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 03:26:05,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 03:26:05,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 03:26:05,363 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 03:26:05,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 03:26:05,363 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 03:26:05,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 03:26:05,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 03:26:05,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 03:26:05,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 03:26:05,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 03:26:05,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 03:26:05,364 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 03:26:05,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 03:26:05,365 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 03:26:05,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 03:26:05,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 03:26:05,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 03:26:05,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 03:26:05,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 03:26:05,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 03:26:05,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 03:26:05,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 03:26:05,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 03:26:05,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 03:26:05,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 03:26:05,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 03:26:05,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 03:26:05,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 03:26:05,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 03:26:05,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 03:26:05,415 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 03:26:05,415 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 03:26:05,416 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo3.c [2019-09-08 03:26:05,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e809e2041/f85eb969dfb1452f94761a543266f862/FLAGee2b55297 [2019-09-08 03:26:05,948 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 03:26:05,949 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo3.c [2019-09-08 03:26:05,955 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e809e2041/f85eb969dfb1452f94761a543266f862/FLAGee2b55297 [2019-09-08 03:26:06,376 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e809e2041/f85eb969dfb1452f94761a543266f862 [2019-09-08 03:26:06,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 03:26:06,388 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 03:26:06,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 03:26:06,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 03:26:06,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 03:26:06,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e9fdd62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06, skipping insertion in model container [2019-09-08 03:26:06,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,403 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 03:26:06,423 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 03:26:06,606 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 03:26:06,610 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 03:26:06,624 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 03:26:06,637 INFO L192 MainTranslator]: Completed translation [2019-09-08 03:26:06,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06 WrapperNode [2019-09-08 03:26:06,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 03:26:06,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 03:26:06,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 03:26:06,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 03:26:06,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,741 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (1/1) ... [2019-09-08 03:26:06,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 03:26:06,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 03:26:06,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 03:26:06,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 03:26:06,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (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 [2019-09-08 03:26:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 03:26:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 03:26:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 03:26:06,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 03:26:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 03:26:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 03:26:06,798 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 03:26:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 03:26:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 03:26:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 03:26:06,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 03:26:06,955 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 03:26:06,955 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 03:26:06,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:26:06 BoogieIcfgContainer [2019-09-08 03:26:06,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 03:26:06,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 03:26:06,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 03:26:06,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 03:26:06,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 03:26:06" (1/3) ... [2019-09-08 03:26:06,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177418e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:26:06, skipping insertion in model container [2019-09-08 03:26:06,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 03:26:06" (2/3) ... [2019-09-08 03:26:06,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@177418e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 03:26:06, skipping insertion in model container [2019-09-08 03:26:06,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 03:26:06" (3/3) ... [2019-09-08 03:26:06,964 INFO L109 eAbstractionObserver]: Analyzing ICFG geo3.c [2019-09-08 03:26:06,973 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 03:26:06,982 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 03:26:06,997 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 03:26:07,022 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 03:26:07,023 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 03:26:07,023 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 03:26:07,023 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 03:26:07,023 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 03:26:07,023 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 03:26:07,024 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 03:26:07,024 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 03:26:07,024 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 03:26:07,039 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-09-08 03:26:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 03:26:07,043 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:26:07,044 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:26:07,046 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:26:07,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:26:07,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1712389503, now seen corresponding path program 1 times [2019-09-08 03:26:07,052 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:26:07,052 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:26:07,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:26:07,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:26:07,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 03:26:07,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 03:26:07,153 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 03:26:07,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 03:26:07,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 03:26:07,165 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2019-09-08 03:26:07,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:26:07,184 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2019-09-08 03:26:07,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 03:26:07,185 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-08 03:26:07,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:26:07,192 INFO L225 Difference]: With dead ends: 35 [2019-09-08 03:26:07,192 INFO L226 Difference]: Without dead ends: 15 [2019-09-08 03:26:07,195 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 03:26:07,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-08 03:26:07,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-08 03:26:07,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-08 03:26:07,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-09-08 03:26:07,226 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-09-08 03:26:07,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:26:07,226 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-09-08 03:26:07,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 03:26:07,226 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-09-08 03:26:07,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-08 03:26:07,227 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:26:07,227 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:26:07,227 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:26:07,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:26:07,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1704941753, now seen corresponding path program 1 times [2019-09-08 03:26:07,228 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:26:07,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:26:07,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,237 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-08 03:26:07,237 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-08 03:26:07,237 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 03:26:07,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:26:07,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 03:26:07,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:26:07,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:26:07,382 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 03:26:07,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 03:26:07,384 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 03:26:07,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 03:26:07,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 03:26:07,386 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 5 states. [2019-09-08 03:26:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:26:07,450 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-09-08 03:26:07,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 03:26:07,451 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-09-08 03:26:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:26:07,452 INFO L225 Difference]: With dead ends: 25 [2019-09-08 03:26:07,452 INFO L226 Difference]: Without dead ends: 22 [2019-09-08 03:26:07,453 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 03:26:07,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-08 03:26:07,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-08 03:26:07,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-08 03:26:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-09-08 03:26:07,461 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2019-09-08 03:26:07,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:26:07,462 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-09-08 03:26:07,462 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 03:26:07,462 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-09-08 03:26:07,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 03:26:07,463 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:26:07,463 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:26:07,464 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:26:07,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:26:07,464 INFO L82 PathProgramCache]: Analyzing trace with hash 241116926, now seen corresponding path program 1 times [2019-09-08 03:26:07,464 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:26:07,465 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:26:07,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,472 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-08 03:26:07,473 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-08 03:26:07,473 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 03:26:07,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 03:26:07,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-08 03:26:07,513 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:26:07,612 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 03:26:07,617 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-08 03:26:07,617 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-09-08 03:26:07,618 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 03:26:07,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 03:26:07,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-09-08 03:26:07,619 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 8 states. [2019-09-08 03:26:07,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:26:07,741 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-09-08 03:26:07,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 03:26:07,742 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 17 [2019-09-08 03:26:07,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:26:07,743 INFO L225 Difference]: With dead ends: 32 [2019-09-08 03:26:07,744 INFO L226 Difference]: Without dead ends: 29 [2019-09-08 03:26:07,744 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-09-08 03:26:07,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-08 03:26:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-09-08 03:26:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-08 03:26:07,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-09-08 03:26:07,752 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 17 [2019-09-08 03:26:07,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:26:07,753 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-09-08 03:26:07,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 03:26:07,753 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-09-08 03:26:07,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-08 03:26:07,754 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:26:07,755 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:26:07,755 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:26:07,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:26:07,755 INFO L82 PathProgramCache]: Analyzing trace with hash 311210265, now seen corresponding path program 2 times [2019-09-08 03:26:07,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:26:07,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:26:07,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 03:26:07,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:07,763 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-08 03:26:07,763 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-08 03:26:07,764 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 03:26:07,785 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 03:26:07,816 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 03:26:07,817 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 03:26:07,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 03:26:07,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:26:07,949 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 03:26:07,953 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-08 03:26:07,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-09-08 03:26:07,953 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 03:26:07,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 03:26:07,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-09-08 03:26:07,954 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 9 states. [2019-09-08 03:26:08,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:26:08,581 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-09-08 03:26:08,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 03:26:08,583 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 24 [2019-09-08 03:26:08,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:26:08,584 INFO L225 Difference]: With dead ends: 39 [2019-09-08 03:26:08,584 INFO L226 Difference]: Without dead ends: 36 [2019-09-08 03:26:08,585 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2019-09-08 03:26:08,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-08 03:26:08,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-09-08 03:26:08,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-09-08 03:26:08,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2019-09-08 03:26:08,593 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 24 [2019-09-08 03:26:08,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:26:08,593 INFO L475 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2019-09-08 03:26:08,593 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 03:26:08,593 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2019-09-08 03:26:08,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-08 03:26:08,594 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 03:26:08,595 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 03:26:08,595 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 03:26:08,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 03:26:08,596 INFO L82 PathProgramCache]: Analyzing trace with hash -928013666, now seen corresponding path program 3 times [2019-09-08 03:26:08,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 03:26:08,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 03:26:08,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:08,598 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 03:26:08,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 03:26:08,606 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-08 03:26:08,606 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-08 03:26:08,607 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-08 03:26:08,641 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-08 03:26:08,665 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 03:26:08,665 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 03:26:08,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 03:26:08,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 03:26:08,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 03:26:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 03:26:08,768 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-08 03:26:08,768 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-09-08 03:26:08,769 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 03:26:08,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 03:26:08,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-08 03:26:08,771 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 8 states. [2019-09-08 03:26:09,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 03:26:09,133 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2019-09-08 03:26:09,133 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 03:26:09,133 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-09-08 03:26:09,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 03:26:09,134 INFO L225 Difference]: With dead ends: 36 [2019-09-08 03:26:09,134 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 03:26:09,135 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 03:26:09,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 03:26:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 03:26:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 03:26:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 03:26:09,136 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2019-09-08 03:26:09,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 03:26:09,136 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 03:26:09,136 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 03:26:09,136 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 03:26:09,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 03:26:09,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 03:26:23,971 WARN L188 SmtUtils]: Spent 14.75 s on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-09-08 03:26:24,055 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 03:26:24,056 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 03:26:24,056 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 03:26:24,056 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 03:26:24,056 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 03:26:24,056 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 03:26:24,056 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 16 39) the Hoare annotation is: true [2019-09-08 03:26:24,057 INFO L439 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0))) [2019-09-08 03:26:24,057 INFO L443 ceAbstractionStarter]: For program point L28-1(lines 27 36) no Hoare annotation was computed. [2019-09-08 03:26:24,057 INFO L439 ceAbstractionStarter]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0))) [2019-09-08 03:26:24,057 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 16 39) no Hoare annotation was computed. [2019-09-08 03:26:24,058 INFO L439 ceAbstractionStarter]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (exists ((v_main_~y~0_13 Int) (v_main_~x~0_14 Int)) (let ((.cse0 (* v_main_~x~0_14 main_~z~0))) (and (= main_~x~0 (+ main_~a~0 .cse0)) (= main_~y~0 (* v_main_~y~0_13 main_~z~0)) (= 0 (+ (- (* v_main_~y~0_13 (* main_~a~0 main_~z~0))) (+ (+ (- v_main_~x~0_14) .cse0) main_~a~0)))))) (and (= main_~y~0 1) (= main_~a~0 main_~x~0)) (and (= main_~x~0 (+ (* (+ main_~a~0 (* main_~a~0 main_~z~0)) main_~z~0) main_~a~0)) (= main_~y~0 (* main_~z~0 main_~z~0)))) [2019-09-08 03:26:24,058 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 16 39) no Hoare annotation was computed. [2019-09-08 03:26:24,058 INFO L443 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2019-09-08 03:26:24,058 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-09-08 03:26:24,058 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-09-08 03:26:24,059 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-09-08 03:26:24,059 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-09-08 03:26:24,059 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-09-08 03:26:24,059 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2019-09-08 03:26:24,066 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,068 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,068 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,068 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,068 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,075 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,076 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 03:26:24 BoogieIcfgContainer [2019-09-08 03:26:24,079 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 03:26:24,081 INFO L168 Benchmark]: Toolchain (without parser) took 17693.42 ms. Allocated memory was 131.6 MB in the beginning and 219.2 MB in the end (delta: 87.6 MB). Free memory was 87.4 MB in the beginning and 147.9 MB in the end (delta: -60.6 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,082 INFO L168 Benchmark]: CDTParser took 2.02 ms. Allocated memory is still 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.78 ms. Allocated memory is still 131.6 MB. Free memory was 86.9 MB in the beginning and 77.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,085 INFO L168 Benchmark]: Boogie Preprocessor took 113.26 ms. Allocated memory was 131.6 MB in the beginning and 198.2 MB in the end (delta: 66.6 MB). Free memory was 77.7 MB in the beginning and 174.6 MB in the end (delta: -96.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,085 INFO L168 Benchmark]: RCFGBuilder took 204.53 ms. Allocated memory is still 198.2 MB. Free memory was 174.6 MB in the beginning and 162.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,087 INFO L168 Benchmark]: TraceAbstraction took 17121.80 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 162.9 MB in the beginning and 147.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2019-09-08 03:26:24,091 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.02 ms. Allocated memory is still 131.6 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.78 ms. Allocated memory is still 131.6 MB. Free memory was 86.9 MB in the beginning and 77.7 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.26 ms. Allocated memory was 131.6 MB in the beginning and 198.2 MB in the end (delta: 66.6 MB). Free memory was 77.7 MB in the beginning and 174.6 MB in the end (delta: -96.9 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 204.53 ms. Allocated memory is still 198.2 MB. Free memory was 174.6 MB in the beginning and 162.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17121.80 ms. Allocated memory was 198.2 MB in the beginning and 219.2 MB in the end (delta: 21.0 MB). Free memory was 162.9 MB in the beginning and 147.9 MB in the end (delta: 15.0 MB). Peak memory consumption was 35.9 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[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 27]: Loop Invariant [2019-09-08 03:26:24,100 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,102 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,102 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,102 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~y~0_13,QUANTIFIED] [2019-09-08 03:26:24,102 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] [2019-09-08 03:26:24,103 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~x~0_14,QUANTIFIED] Derived loop invariant: (\exists v_main_~y~0_13 : int, v_main_~x~0_14 : int :: (x == a + v_main_~x~0_14 * z && y == v_main_~y~0_13 * z) && 0 == -(v_main_~y~0_13 * (a * z)) + (-v_main_~x~0_14 + v_main_~x~0_14 * z + a)) || (y == 1 && a == x) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 17.0s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 14.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 41 SDslu, 217 SDs, 0 SdLazy, 172 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 17 PreInvPairs, 29 NumberOfFragments, 139 HoareAnnotationTreeSize, 17 FomulaSimplifications, 180 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 45 FormulaSimplificationTreeSizeReductionInter, 14.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 92 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 87 ConstructedInterpolants, 2 QuantifiedInterpolants, 7731 SizeOfPredicates, 12 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 88 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 39/52 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...