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 0.1.24-13a467a-m [2019-10-14 23:08:17,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:17,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:17,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:17,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:17,933 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:17,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:17,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:17,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:17,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:17,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:17,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:17,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:17,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:17,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:17,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:17,947 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:17,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:17,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:17,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:17,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:17,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:17,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:17,955 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:17,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:17,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:08:17,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:08:17,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:08:17,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:08:17,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:08:17,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:08:17,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:08:17,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:08:17,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:17,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:17,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:17,967 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 [2019-10-14 23:08:17,981 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:17,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:17,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:17,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:17,983 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:17,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:17,983 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:17,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:17,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:17,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:17,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:17,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:17,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:17,985 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:17,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:17,985 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:17,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:17,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:17,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:17,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:17,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:17,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:17,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:17,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:17,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:17,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:17,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:17,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:17,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:18,272 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:18,286 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:18,289 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:18,291 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:18,291 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:18,292 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2019-10-14 23:08:18,371 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66270a386/273b567a0e9b4c8c90a5b83e959b268e/FLAGc8dd85319 [2019-10-14 23:08:18,828 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:18,829 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_struct.c_1.i [2019-10-14 23:08:18,836 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66270a386/273b567a0e9b4c8c90a5b83e959b268e/FLAGc8dd85319 [2019-10-14 23:08:19,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/66270a386/273b567a0e9b4c8c90a5b83e959b268e [2019-10-14 23:08:19,187 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:19,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:19,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:19,190 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:19,193 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:19,195 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,197 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c50765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19, skipping insertion in model container [2019-10-14 23:08:19,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,205 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:19,222 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:19,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:19,418 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:19,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:19,459 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:19,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19 WrapperNode [2019-10-14 23:08:19,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:19,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:19,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:19,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:19,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,578 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,578 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (1/1) ... [2019-10-14 23:08:19,600 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:19,601 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:19,601 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:19,601 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:19,602 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (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 [2019-10-14 23:08:19,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-10-14 23:08:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-14 23:08:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-14 23:08:19,667 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:19,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-14 23:08:19,668 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:19,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:19,915 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:19,915 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:08:19,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:19 BoogieIcfgContainer [2019-10-14 23:08:19,916 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:19,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:19,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:19,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:19,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:19" (1/3) ... [2019-10-14 23:08:19,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590859c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:19, skipping insertion in model container [2019-10-14 23:08:19,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:19" (2/3) ... [2019-10-14 23:08:19,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590859c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:19, skipping insertion in model container [2019-10-14 23:08:19,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:19" (3/3) ... [2019-10-14 23:08:19,939 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_struct.c_1.i [2019-10-14 23:08:19,950 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:19,958 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:19,970 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:20,003 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:20,003 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:20,003 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:20,004 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:20,004 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:20,004 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:20,004 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:20,004 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2019-10-14 23:08:20,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-14 23:08:20,036 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:20,036 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:20,039 INFO L410 AbstractCegarLoop]: === Iteration 1 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:20,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:20,044 INFO L82 PathProgramCache]: Analyzing trace with hash 589228543, now seen corresponding path program 1 times [2019-10-14 23:08:20,052 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:20,052 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92992289] [2019-10-14 23:08:20,052 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:20,053 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:20,053 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:20,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:20,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:20,284 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92992289] [2019-10-14 23:08:20,285 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:20,285 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:08:20,285 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837247327] [2019-10-14 23:08:20,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:08:20,292 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:20,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:08:20,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:08:20,309 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 6 states. [2019-10-14 23:08:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:20,486 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2019-10-14 23:08:20,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:08:20,489 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2019-10-14 23:08:20,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:20,498 INFO L225 Difference]: With dead ends: 46 [2019-10-14 23:08:20,498 INFO L226 Difference]: Without dead ends: 18 [2019-10-14 23:08:20,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:20,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-14 23:08:20,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-14 23:08:20,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-14 23:08:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-10-14 23:08:20,548 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 11 [2019-10-14 23:08:20,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:20,548 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-10-14 23:08:20,549 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:08:20,549 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-10-14 23:08:20,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:08:20,550 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:20,550 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:20,551 INFO L410 AbstractCegarLoop]: === Iteration 2 === [errErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:20,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1259031447, now seen corresponding path program 1 times [2019-10-14 23:08:20,552 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:20,552 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175388575] [2019-10-14 23:08:20,552 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:20,553 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:20,553 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:20,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:20,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:20,787 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175388575] [2019-10-14 23:08:20,788 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:20,788 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-14 23:08:20,788 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900234569] [2019-10-14 23:08:20,790 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-14 23:08:20,790 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:20,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-14 23:08:20,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-14 23:08:20,793 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2019-10-14 23:08:21,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:21,026 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-10-14 23:08:21,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:08:21,026 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2019-10-14 23:08:21,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:21,027 INFO L225 Difference]: With dead ends: 18 [2019-10-14 23:08:21,027 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:08:21,029 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:08:21,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:08:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:08:21,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:08:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:08:21,030 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-14 23:08:21,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:21,031 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:08:21,031 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-14 23:08:21,031 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:08:21,031 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:08:21,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:08:21,173 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)) (= |#memory_int| |old(#memory_int)|)) [2019-10-14 23:08:21,174 INFO L443 ceAbstractionStarter]: For program point L27(line 27) no Hoare annotation was computed. [2019-10-14 23:08:21,174 INFO L443 ceAbstractionStarter]: For program point mutex_unlockEXIT(lines 25 29) no Hoare annotation was computed. [2019-10-14 23:08:21,174 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)) [2019-10-14 23:08:21,174 INFO L443 ceAbstractionStarter]: For program point L27-3(line 27) no Hoare annotation was computed. [2019-10-14 23:08:21,174 INFO L443 ceAbstractionStarter]: For program point mutex_unlockFINAL(lines 25 29) no Hoare annotation was computed. [2019-10-14 23:08:21,174 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:21,175 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-14 23:08:21,175 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:21,175 INFO L443 ceAbstractionStarter]: For program point errEXIT(lines 12 13) no Hoare annotation was computed. [2019-10-14 23:08:21,178 INFO L446 ceAbstractionStarter]: At program point errENTRY(lines 12 13) the Hoare annotation is: true [2019-10-14 23:08:21,178 INFO L443 ceAbstractionStarter]: For program point errFINAL(lines 12 13) no Hoare annotation was computed. [2019-10-14 23:08:21,178 INFO L443 ceAbstractionStarter]: For program point errErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-10-14 23:08:21,178 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)) (= |#memory_int| |old(#memory_int)|)) [2019-10-14 23:08:21,179 INFO L443 ceAbstractionStarter]: For program point mutex_lockFINAL(lines 19 23) no Hoare annotation was computed. [2019-10-14 23:08:21,179 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-14 23:08:21,179 INFO L443 ceAbstractionStarter]: For program point mutex_lockEXIT(lines 19 23) no Hoare annotation was computed. [2019-10-14 23:08:21,179 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)) [2019-10-14 23:08:21,179 INFO L443 ceAbstractionStarter]: For program point L21-3(line 21) no Hoare annotation was computed. [2019-10-14 23:08:21,179 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:21,180 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:08:21,180 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:08:21,180 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:21,180 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 31 43) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|)) [2019-10-14 23:08:21,181 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 31 43) no Hoare annotation was computed. [2019-10-14 23:08:21,181 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 31 43) no Hoare annotation was computed. [2019-10-14 23:08:21,181 INFO L443 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2019-10-14 23:08:21,182 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|)) [2019-10-14 23:08:21,182 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|)) [2019-10-14 23:08:21,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:21 BoogieIcfgContainer [2019-10-14 23:08:21,189 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:21,193 INFO L168 Benchmark]: Toolchain (without parser) took 2002.87 ms. Allocated memory was 143.7 MB in the beginning and 231.2 MB in the end (delta: 87.6 MB). Free memory was 100.9 MB in the beginning and 199.6 MB in the end (delta: -98.6 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,195 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.67 ms. Allocated memory is still 143.7 MB. Free memory was 100.7 MB in the beginning and 90.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,199 INFO L168 Benchmark]: Boogie Preprocessor took 139.09 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 90.6 MB in the beginning and 179.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,200 INFO L168 Benchmark]: RCFGBuilder took 315.60 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 166.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,202 INFO L168 Benchmark]: TraceAbstraction took 1270.81 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 165.8 MB in the beginning and 199.6 MB in the end (delta: -33.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:21,213 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 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 271.67 ms. Allocated memory is still 143.7 MB. Free memory was 100.7 MB in the beginning and 90.6 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.09 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 90.6 MB in the beginning and 179.1 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 315.60 ms. Allocated memory is still 200.8 MB. Free memory was 179.1 MB in the beginning and 166.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1270.81 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 165.8 MB in the beginning and 199.6 MB in the end (delta: -33.8 MB). Peak memory consumption was 87.6 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. Result: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 28 SDtfs, 19 SDslu, 57 SDs, 0 SdLazy, 104 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s 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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 16 NumberOfFragments, 74 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...