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/ldv-regression/test_union.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:01:18,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:01:18,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:01:18,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:01:18,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:01:18,637 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:01:18,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:01:18,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:01:18,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:01:18,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:01:18,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:01:18,645 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:01:18,645 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:01:18,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:01:18,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:01:18,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:01:18,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:01:18,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:01:18,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:01:18,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:01:18,655 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:01:18,656 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:01:18,657 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:01:18,658 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:01:18,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:01:18,662 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:01:18,662 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:01:18,663 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:01:18,664 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:01:18,665 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:01:18,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:01:18,668 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:01:18,669 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:01:18,670 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:01:18,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:01:18,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:01:18,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:01:18,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:01:18,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:01:18,677 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:01:18,680 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:01:18,681 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 [2019-09-20 13:01:18,703 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:01:18,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:01:18,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:01:18,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:01:18,706 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:01:18,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:01:18,707 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:01:18,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:01:18,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:01:18,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:01:18,708 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:01:18,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:01:18,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:01:18,709 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:01:18,709 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:01:18,710 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:01:18,710 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:01:18,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:01:18,710 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:01:18,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:01:18,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:01:18,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:01:18,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:01:18,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:01:18,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:01:18,712 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:01:18,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:01:18,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:01:18,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:01:18,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:01:18,765 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:01:18,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:01:18,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:01:18,773 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:01:18,774 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union.i [2019-09-20 13:01:18,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a02365e/2b793e37266e43ffaed2abc16efa3191/FLAGcca1c752f [2019-09-20 13:01:19,322 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:01:19,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.i [2019-09-20 13:01:19,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a02365e/2b793e37266e43ffaed2abc16efa3191/FLAGcca1c752f [2019-09-20 13:01:19,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2a02365e/2b793e37266e43ffaed2abc16efa3191 [2019-09-20 13:01:19,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:01:19,725 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:01:19,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:01:19,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:01:19,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:01:19,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:19,737 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a7f4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19, skipping insertion in model container [2019-09-20 13:01:19,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:19,746 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:01:19,767 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:01:19,932 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:01:19,942 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:01:19,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:01:19,977 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:01:19,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19 WrapperNode [2019-09-20 13:01:19,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:01:19,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:01:19,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:01:19,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:01:20,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,091 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (1/1) ... [2019-09-20 13:01:20,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:01:20,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:01:20,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:01:20,096 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:01:20,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (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 [2019-09-20 13:01:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:01:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:01:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-09-20 13:01:20,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:01:20,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:01:20,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:01:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:01:20,159 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:01:20,346 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:01:20,346 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:01:20,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:01:20 BoogieIcfgContainer [2019-09-20 13:01:20,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:01:20,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:01:20,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:01:20,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:01:20,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:01:19" (1/3) ... [2019-09-20 13:01:20,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24073812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:01:20, skipping insertion in model container [2019-09-20 13:01:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:01:19" (2/3) ... [2019-09-20 13:01:20,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24073812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:01:20, skipping insertion in model container [2019-09-20 13:01:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:01:20" (3/3) ... [2019-09-20 13:01:20,355 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union.i [2019-09-20 13:01:20,365 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:01:20,371 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:01:20,386 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:01:20,414 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:01:20,415 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:01:20,415 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:01:20,415 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:01:20,415 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:01:20,415 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:01:20,416 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:01:20,416 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:01:20,416 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:01:20,430 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-20 13:01:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-09-20 13:01:20,434 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:01:20,435 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:01:20,437 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:01:20,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:01:20,442 INFO L82 PathProgramCache]: Analyzing trace with hash -1215743292, now seen corresponding path program 1 times [2019-09-20 13:01:20,443 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:01:20,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:01:20,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:20,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:01:20,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:01:20,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:01:20,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:01:20,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:01:20,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:01:20,610 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:01:20,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:01:20,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:01:20,623 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-09-20 13:01:20,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:01:20,646 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2019-09-20 13:01:20,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:01:20,650 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-09-20 13:01:20,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:01:20,658 INFO L225 Difference]: With dead ends: 22 [2019-09-20 13:01:20,658 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:01:20,661 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:01:20,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:01:20,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:01:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:01:20,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:01:20,693 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-09-20 13:01:20,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:01:20,693 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:01:20,694 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:01:20,694 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:01:20,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:01:20,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 13:01:20,731 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:01:20,731 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:01:20,732 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:20,732 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-09-20 13:01:20,732 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-09-20 13:01:20,733 INFO L443 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2019-09-20 13:01:20,733 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-09-20 13:01:20,733 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 13:01:20,734 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 13:01:20,734 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 13:01:20,735 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 13:01:20,735 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 23 31) the Hoare annotation is: true [2019-09-20 13:01:20,735 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-09-20 13:01:20,736 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 23 31) no Hoare annotation was computed. [2019-09-20 13:01:20,736 INFO L439 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false [2019-09-20 13:01:20,736 INFO L443 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2019-09-20 13:01:20,737 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 23 31) no Hoare annotation was computed. [2019-09-20 13:01:20,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:01:20 BoogieIcfgContainer [2019-09-20 13:01:20,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:01:20,745 INFO L168 Benchmark]: Toolchain (without parser) took 1018.21 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 85.9 MB in the beginning and 141.4 MB in the end (delta: -55.4 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,747 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,748 INFO L168 Benchmark]: CACSL2BoogieTranslator took 249.46 ms. Allocated memory is still 138.4 MB. Free memory was 85.5 MB in the beginning and 76.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,750 INFO L168 Benchmark]: Boogie Preprocessor took 117.09 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 76.1 MB in the beginning and 175.5 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,751 INFO L168 Benchmark]: RCFGBuilder took 251.81 ms. Allocated memory is still 197.7 MB. Free memory was 175.5 MB in the beginning and 163.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,752 INFO L168 Benchmark]: TraceAbstraction took 392.55 ms. Allocated memory is still 197.7 MB. Free memory was 163.9 MB in the beginning and 141.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:01:20,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 138.4 MB. Free memory was 104.3 MB in the beginning and 104.1 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 249.46 ms. Allocated memory is still 138.4 MB. Free memory was 85.5 MB in the beginning and 76.1 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.09 ms. Allocated memory was 138.4 MB in the beginning and 197.7 MB in the end (delta: 59.2 MB). Free memory was 76.1 MB in the beginning and 175.5 MB in the end (delta: -99.5 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 251.81 ms. Allocated memory is still 197.7 MB. Free memory was 175.5 MB in the beginning and 163.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 392.55 ms. Allocated memory is still 197.7 MB. Free memory was 163.9 MB in the beginning and 141.4 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 1 SDslu, 8 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 80 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...