/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:07:50,513 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:07:50,516 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:07:50,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:07:50,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:07:50,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:07:50,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:07:50,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:07:50,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:07:50,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:07:50,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:07:50,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:07:50,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:07:50,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:07:50,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:07:50,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:07:50,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:07:50,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:07:50,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:07:50,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:07:50,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:07:50,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:07:50,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:07:50,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:07:50,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:07:50,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:07:50,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:07:50,557 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:07:50,558 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:07:50,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:07:50,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:07:50,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:07:50,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:07:50,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:07:50,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:07:50,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:07:50,562 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 [2019-11-23 22:07:50,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:07:50,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:07:50,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:07:50,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:07:50,587 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:07:50,587 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:07:50,587 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:07:50,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:07:50,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:07:50,589 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:07:50,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:07:50,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:07:50,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:07:50,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:07:50,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:07:50,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:07:50,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:07:50,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:07:50,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:07:50,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:07:50,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:07:50,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:07:50,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:07:50,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:07:50,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:07:50,896 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:07:50,910 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:07:50,914 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:07:50,916 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:07:50,916 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:07:50,917 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2019-11-23 22:07:50,999 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fce79d85/ce944a79c1f74d0da296ffbbed2d2bec/FLAGe468c2b7f [2019-11-23 22:07:51,452 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:07:51,453 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/multivar_1-1.c [2019-11-23 22:07:51,459 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fce79d85/ce944a79c1f74d0da296ffbbed2d2bec/FLAGe468c2b7f [2019-11-23 22:07:51,800 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3fce79d85/ce944a79c1f74d0da296ffbbed2d2bec [2019-11-23 22:07:51,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:07:51,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:07:51,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:07:51,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:07:51,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:07:51,816 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:51" (1/1) ... [2019-11-23 22:07:51,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7bbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:51, skipping insertion in model container [2019-11-23 22:07:51,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:07:51" (1/1) ... [2019-11-23 22:07:51,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:07:51,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:07:51,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:07:52,003 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:07:52,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:07:52,035 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:07:52,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52 WrapperNode [2019-11-23 22:07:52,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:07:52,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:07:52,037 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:07:52,037 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:07:52,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,054 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:07:52,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:07:52,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:07:52,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:07:52,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (1/1) ... [2019-11-23 22:07:52,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:07:52,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:07:52,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:07:52,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:07:52,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (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 [2019-11-23 22:07:52,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:07:52,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:07:52,377 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:07:52,377 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:07:52,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:52 BoogieIcfgContainer [2019-11-23 22:07:52,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:07:52,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:07:52,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:07:52,383 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:07:52,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:07:51" (1/3) ... [2019-11-23 22:07:52,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:52, skipping insertion in model container [2019-11-23 22:07:52,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:07:52" (2/3) ... [2019-11-23 22:07:52,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9e3633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:07:52, skipping insertion in model container [2019-11-23 22:07:52,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:07:52" (3/3) ... [2019-11-23 22:07:52,387 INFO L109 eAbstractionObserver]: Analyzing ICFG multivar_1-1.c [2019-11-23 22:07:52,396 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:07:52,403 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:07:52,415 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:07:52,446 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:07:52,447 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:07:52,447 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:07:52,447 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:07:52,447 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:07:52,448 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:07:52,448 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:07:52,449 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:07:52,462 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-11-23 22:07:52,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-23 22:07:52,467 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:07:52,468 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-23 22:07:52,469 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:07:52,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:07:52,474 INFO L82 PathProgramCache]: Analyzing trace with hash 29805000, now seen corresponding path program 1 times [2019-11-23 22:07:52,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:07:52,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769970835] [2019-11-23 22:07:52,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:07:52,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:07:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:07:52,685 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769970835] [2019-11-23 22:07:52,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:07:52,687 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:07:52,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147770276] [2019-11-23 22:07:52,694 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:07:52,694 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:07:52,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:07:52,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:07:52,719 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2019-11-23 22:07:52,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:07:52,787 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-11-23 22:07:52,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:07:52,792 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-11-23 22:07:52,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:07:52,802 INFO L225 Difference]: With dead ends: 14 [2019-11-23 22:07:52,802 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:07:52,813 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:07:52,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:07:52,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:07:52,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:07:52,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:07:52,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-11-23 22:07:52,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:07:52,837 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:07:52,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:07:52,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:07:52,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:07:52,841 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:07:52,862 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:07:52,862 INFO L440 ceAbstractionStarter]: At program point L15-2(lines 15 18) the Hoare annotation is: (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) [2019-11-23 22:07:52,863 INFO L444 ceAbstractionStarter]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2019-11-23 22:07:52,863 INFO L444 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-23 22:07:52,863 INFO L440 ceAbstractionStarter]: At program point L5-2(lines 1 21) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) [2019-11-23 22:07:52,863 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:07:52,864 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:07:52,864 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-11-23 22:07:52,864 INFO L444 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-23 22:07:52,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:07:52 BoogieIcfgContainer [2019-11-23 22:07:52,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:07:52,883 INFO L168 Benchmark]: Toolchain (without parser) took 1072.01 ms. Allocated memory was 135.3 MB in the beginning and 198.2 MB in the end (delta: 62.9 MB). Free memory was 100.2 MB in the beginning and 141.0 MB in the end (delta: -40.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,884 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,885 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.92 ms. Allocated memory is still 135.3 MB. Free memory was 99.8 MB in the beginning and 90.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,887 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 135.3 MB. Free memory was 90.6 MB in the beginning and 89.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,888 INFO L168 Benchmark]: Boogie Preprocessor took 90.49 ms. Allocated memory was 135.3 MB in the beginning and 198.2 MB in the end (delta: 62.9 MB). Free memory was 89.2 MB in the beginning and 177.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,889 INFO L168 Benchmark]: RCFGBuilder took 217.51 ms. Allocated memory is still 198.2 MB. Free memory was 176.5 MB in the beginning and 166.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,890 INFO L168 Benchmark]: TraceAbstraction took 500.81 ms. Allocated memory is still 198.2 MB. Free memory was 166.0 MB in the beginning and 141.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:07:52,895 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 135.3 MB. Free memory was 118.5 MB in the beginning and 118.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 224.92 ms. Allocated memory is still 135.3 MB. Free memory was 99.8 MB in the beginning and 90.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.61 ms. Allocated memory is still 135.3 MB. Free memory was 90.6 MB in the beginning and 89.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.49 ms. Allocated memory was 135.3 MB in the beginning and 198.2 MB in the end (delta: 62.9 MB). Free memory was 89.2 MB in the beginning and 177.2 MB in the end (delta: -88.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 217.51 ms. Allocated memory is still 198.2 MB. Free memory was 176.5 MB in the beginning and 166.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 500.81 ms. Allocated memory is still 198.2 MB. Free memory was 166.0 MB in the beginning and 141.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 15]: Loop Invariant Derived loop invariant: x == y - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: !(0 == cond) && x == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 6 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 11 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 44 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...