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/mutex_lock_struct.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 01:33:07,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 01:33:07,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 01:33:07,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 01:33:07,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 01:33:07,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 01:33:07,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 01:33:07,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 01:33:07,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 01:33:07,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 01:33:07,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 01:33:07,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 01:33:07,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 01:33:07,590 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 01:33:07,591 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 01:33:07,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 01:33:07,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 01:33:07,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 01:33:07,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 01:33:07,604 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 01:33:07,607 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 01:33:07,609 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 01:33:07,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 01:33:07,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 01:33:07,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 01:33:07,629 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 01:33:07,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 01:33:07,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 01:33:07,632 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 01:33:07,656 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 01:33:07,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 01:33:07,658 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 01:33:07,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 01:33:07,659 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 01:33:07,659 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 01:33:07,659 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 01:33:07,659 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 01:33:07,660 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 01:33:07,660 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 01:33:07,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 01:33:07,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 01:33:07,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 01:33:07,662 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 01:33:07,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 01:33:07,662 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 01:33:07,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 01:33:07,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 01:33:07,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 01:33:07,663 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 01:33:07,664 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 01:33:07,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 01:33:07,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 01:33:07,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 01:33:07,665 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 01:33:07,665 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 01:33:07,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 01:33:07,665 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 01:33:07,666 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 01:33:07,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 01:33:07,709 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 01:33:07,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 01:33:07,714 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 01:33:07,714 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 01:33:07,715 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2019-09-08 01:33:07,776 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d155eb2e/3984b1a789d14b288b9d1ac02a2bc895/FLAGfb6974b0d [2019-09-08 01:33:08,200 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 01:33:08,202 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2019-09-08 01:33:08,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d155eb2e/3984b1a789d14b288b9d1ac02a2bc895/FLAGfb6974b0d [2019-09-08 01:33:08,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d155eb2e/3984b1a789d14b288b9d1ac02a2bc895 [2019-09-08 01:33:08,582 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 01:33:08,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 01:33:08,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 01:33:08,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 01:33:08,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 01:33:08,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48245f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08, skipping insertion in model container [2019-09-08 01:33:08,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,601 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 01:33:08,618 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 01:33:08,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:33:08,783 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 01:33:08,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 01:33:08,811 INFO L192 MainTranslator]: Completed translation [2019-09-08 01:33:08,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08 WrapperNode [2019-09-08 01:33:08,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 01:33:08,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 01:33:08,813 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 01:33:08,813 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 01:33:08,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,927 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (1/1) ... [2019-09-08 01:33:08,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 01:33:08,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 01:33:08,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 01:33:08,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 01:33:08,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (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 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-09-08 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-08 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-08 01:33:08,998 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-08 01:33:08,999 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 01:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 01:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 01:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 01:33:09,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 01:33:09,216 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 01:33:09,217 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 01:33:09,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:33:09 BoogieIcfgContainer [2019-09-08 01:33:09,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 01:33:09,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 01:33:09,227 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 01:33:09,235 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 01:33:09,236 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:33:08" (1/3) ... [2019-09-08 01:33:09,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a29cfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:33:09, skipping insertion in model container [2019-09-08 01:33:09,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:33:08" (2/3) ... [2019-09-08 01:33:09,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a29cfb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:33:09, skipping insertion in model container [2019-09-08 01:33:09,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:33:09" (3/3) ... [2019-09-08 01:33:09,247 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2019-09-08 01:33:09,272 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 01:33:09,288 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 01:33:09,317 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 01:33:09,346 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 01:33:09,347 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 01:33:09,347 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 01:33:09,347 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 01:33:09,348 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 01:33:09,348 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 01:33:09,348 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 01:33:09,348 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 01:33:09,348 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 01:33:09,364 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-09-08 01:33:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-08 01:33:09,370 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:33:09,370 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:33:09,373 INFO L418 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:33:09,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:33:09,378 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2019-09-08 01:33:09,379 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:33:09,379 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:33:09,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:33:09,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:33:09,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:33:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:33:09,559 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 01:33:09,562 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:33:09,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 01:33:09,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 01:33:09,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 01:33:09,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 01:33:09,581 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 5 states. [2019-09-08 01:33:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:33:09,673 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-09-08 01:33:09,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 01:33:09,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-08 01:33:09,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:33:09,684 INFO L225 Difference]: With dead ends: 46 [2019-09-08 01:33:09,684 INFO L226 Difference]: Without dead ends: 18 [2019-09-08 01:33:09,688 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 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 01:33:09,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-08 01:33:09,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-08 01:33:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-08 01:33:09,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-09-08 01:33:09,728 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2019-09-08 01:33:09,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:33:09,729 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-09-08 01:33:09,729 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 01:33:09,729 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-09-08 01:33:09,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 01:33:09,730 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 01:33:09,731 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 01:33:09,731 INFO L418 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 01:33:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 01:33:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2019-09-08 01:33:09,732 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 01:33:09,732 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 01:33:09,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:33:09,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 01:33:09,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 01:33:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 01:33:09,842 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 01:33:09,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 01:33:09,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 01:33:09,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 01:33:09,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 01:33:09,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 01:33:09,846 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 7 states. [2019-09-08 01:33:09,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 01:33:09,918 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-09-08 01:33:09,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 01:33:09,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-09-08 01:33:09,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 01:33:09,920 INFO L225 Difference]: With dead ends: 18 [2019-09-08 01:33:09,920 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 01:33:09,921 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-09-08 01:33:09,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 01:33:09,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 01:33:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 01:33:09,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 01:33:09,923 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-08 01:33:09,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 01:33:09,923 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 01:33:09,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 01:33:09,923 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 01:33:09,924 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 01:33:09,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 01:33:09,975 INFO L439 ceAbstractionStarter]: At program point mutex_unlockENTRY(lines 25 29) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) (= (select (select |#memory_int| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2019-09-08 01:33:09,976 INFO L443 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-09-08 01:33:09,976 INFO L443 ceAbstractionStarter]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2019-09-08 01:33:09,976 INFO L439 ceAbstractionStarter]: At program point L27-1(line 27) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_unlock_#in~b.base|) |mutex_unlock_#in~b.offset|) 1)) [2019-09-08 01:33:09,976 INFO L443 ceAbstractionStarter]: For program point L27-3(line 27) no Hoare annotation was computed. [2019-09-08 01:33:09,977 INFO L443 ceAbstractionStarter]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2019-09-08 01:33:09,977 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:33:09,977 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:33:09,977 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:33:09,977 INFO L443 ceAbstractionStarter]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-09-08 01:33:09,978 INFO L443 ceAbstractionStarter]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2019-09-08 01:33:09,978 INFO L446 ceAbstractionStarter]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2019-09-08 01:33:09,978 INFO L443 ceAbstractionStarter]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2019-09-08 01:33:09,978 INFO L439 ceAbstractionStarter]: At program point mutex_lockENTRY(lines 19 23) the Hoare annotation is: (or (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) (= (select (select |#memory_int| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2019-09-08 01:33:09,979 INFO L443 ceAbstractionStarter]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2019-09-08 01:33:09,979 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-09-08 01:33:09,979 INFO L443 ceAbstractionStarter]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2019-09-08 01:33:09,979 INFO L439 ceAbstractionStarter]: At program point L21-1(line 21) the Hoare annotation is: (not (= (select (select |old(#memory_int)| |mutex_lock_#in~a.base|) |mutex_lock_#in~a.offset|) 0)) [2019-09-08 01:33:09,979 INFO L443 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2019-09-08 01:33:09,980 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 01:33:09,980 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 01:33:09,980 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 01:33:09,980 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 01:33:09,980 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 31 43) the Hoare annotation is: true [2019-09-08 01:33:09,981 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2019-09-08 01:33:09,981 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2019-09-08 01:33:09,981 INFO L443 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2019-09-08 01:33:09,981 INFO L439 ceAbstractionStarter]: At program point L36(line 36) the Hoare annotation is: (= 0 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2019-09-08 01:33:09,981 INFO L439 ceAbstractionStarter]: At program point L36-1(line 36) the Hoare annotation is: (= 1 (select (select |#memory_int| |main_~#m~0.base|) |main_~#m~0.offset|)) [2019-09-08 01:33:09,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:33:09 BoogieIcfgContainer [2019-09-08 01:33:09,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 01:33:09,989 INFO L168 Benchmark]: Toolchain (without parser) took 1404.23 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 87.8 MB in the beginning and 120.0 MB in the end (delta: -32.3 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2019-09-08 01:33:09,990 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-08 01:33:09,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.39 ms. Allocated memory is still 141.6 MB. Free memory was 87.8 MB in the beginning and 78.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-09-08 01:33:09,992 INFO L168 Benchmark]: Boogie Preprocessor took 136.20 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 78.1 MB in the beginning and 178.9 MB in the end (delta: -100.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-09-08 01:33:09,993 INFO L168 Benchmark]: RCFGBuilder took 273.58 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 166.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-09-08 01:33:09,994 INFO L168 Benchmark]: TraceAbstraction took 762.07 ms. Allocated memory is still 201.9 MB. Free memory was 165.6 MB in the beginning and 120.0 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2019-09-08 01:33:09,997 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 141.6 MB. Free memory is still 106.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 227.39 ms. Allocated memory is still 141.6 MB. Free memory was 87.8 MB in the beginning and 78.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.20 ms. Allocated memory was 141.6 MB in the beginning and 201.9 MB in the end (delta: 60.3 MB). Free memory was 78.1 MB in the beginning and 178.9 MB in the end (delta: -100.9 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 273.58 ms. Allocated memory is still 201.9 MB. Free memory was 178.9 MB in the beginning and 166.4 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 762.07 ms. Allocated memory is still 201.9 MB. Free memory was 165.6 MB in the beginning and 120.0 MB in the end (delta: 45.6 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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 6 procedures, 29 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 33 SDtfs, 4 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 67 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...