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/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:00:52,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:00:52,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:00:52,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:00:52,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:00:52,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:00:52,956 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:00:52,957 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:00:52,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:00:52,960 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:00:52,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:00:52,962 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:00:52,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:00:52,963 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:00:52,964 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:00:52,965 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:00:52,966 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:00:52,967 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:00:52,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:00:52,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:00:52,972 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:00:52,973 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:00:52,974 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:00:52,975 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:00:52,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:00:52,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:00:52,981 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:00:52,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:00:52,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:00:52,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:00:52,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:00:52,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:00:52,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:00:52,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:00:52,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:00:52,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:00:52,992 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 13:00:53,016 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:00:53,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:00:53,018 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 13:00:53,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 13:00:53,019 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 13:00:53,019 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:00:53,019 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:00:53,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 13:00:53,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:00:53,020 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:00:53,021 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:00:53,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:00:53,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:00:53,021 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:00:53,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:00:53,022 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 13:00:53,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:00:53,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:00:53,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:00:53,023 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 13:00:53,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 13:00:53,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:00:53,024 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:00:53,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:00:53,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 13:00:53,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 13:00:53,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:00:53,025 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 13:00:53,025 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:00:53,067 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:00:53,083 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:00:53,087 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:00:53,088 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:00:53,089 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:00:53,089 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-09-20 13:00:53,146 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b11df3/1548f67ad8bc4f7a9aac297ba7d49e91/FLAG5588aa8b9 [2019-09-20 13:00:53,621 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:00:53,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-09-20 13:00:53,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b11df3/1548f67ad8bc4f7a9aac297ba7d49e91/FLAG5588aa8b9 [2019-09-20 13:00:53,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f79b11df3/1548f67ad8bc4f7a9aac297ba7d49e91 [2019-09-20 13:00:53,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:00:53,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:00:53,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:53,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:00:53,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:00:53,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:53" (1/1) ... [2019-09-20 13:00:53,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c68ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:53, skipping insertion in model container [2019-09-20 13:00:53,986 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:00:53" (1/1) ... [2019-09-20 13:00:53,994 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:00:54,019 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:00:54,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:54,235 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:00:54,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:00:54,270 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:00:54,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54 WrapperNode [2019-09-20 13:00:54,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:00:54,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:00:54,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:00:54,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:00:54,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (1/1) ... [2019-09-20 13:00:54,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:00:54,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:00:54,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:00:54,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:00:54,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (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 13:00:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2019-09-20 13:00:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2019-09-20 13:00:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2019-09-20 13:00:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2019-09-20 13:00:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2019-09-20 13:00:54,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:00:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:00:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-09-20 13:00:54,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2019-09-20 13:00:54,447 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2019-09-20 13:00:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2019-09-20 13:00:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2019-09-20 13:00:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:00:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:00:54,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:00:54,784 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:00:54,784 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:00:54,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:54 BoogieIcfgContainer [2019-09-20 13:00:54,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:00:54,788 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:00:54,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:00:54,791 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:00:54,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:00:53" (1/3) ... [2019-09-20 13:00:54,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c3da52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:54, skipping insertion in model container [2019-09-20 13:00:54,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:00:54" (2/3) ... [2019-09-20 13:00:54,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51c3da52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:00:54, skipping insertion in model container [2019-09-20 13:00:54,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:00:54" (3/3) ... [2019-09-20 13:00:54,795 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2019-09-20 13:00:54,804 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:00:54,810 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:00:54,827 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:00:54,859 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 13:00:54,860 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:00:54,860 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 13:00:54,861 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:00:54,861 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:00:54,861 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:00:54,861 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:00:54,861 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:00:54,861 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:00:54,882 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2019-09-20 13:00:54,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-20 13:00:54,887 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:54,888 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:54,890 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:54,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:54,895 INFO L82 PathProgramCache]: Analyzing trace with hash 1865767033, now seen corresponding path program 1 times [2019-09-20 13:00:54,896 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:54,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:54,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:54,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:54,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:55,023 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 13:00:55,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:55,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:00:55,029 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:00:55,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:00:55,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:00:55,042 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 2 states. [2019-09-20 13:00:55,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:55,079 INFO L93 Difference]: Finished difference Result 135 states and 180 transitions. [2019-09-20 13:00:55,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:00:55,081 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2019-09-20 13:00:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:55,092 INFO L225 Difference]: With dead ends: 135 [2019-09-20 13:00:55,092 INFO L226 Difference]: Without dead ends: 65 [2019-09-20 13:00:55,097 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:00:55,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2019-09-20 13:00:55,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2019-09-20 13:00:55,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2019-09-20 13:00:55,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 80 transitions. [2019-09-20 13:00:55,146 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 80 transitions. Word has length 16 [2019-09-20 13:00:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:55,147 INFO L475 AbstractCegarLoop]: Abstraction has 65 states and 80 transitions. [2019-09-20 13:00:55,147 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:00:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 80 transitions. [2019-09-20 13:00:55,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 13:00:55,148 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:55,148 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:55,149 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:55,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:55,149 INFO L82 PathProgramCache]: Analyzing trace with hash 6927045, now seen corresponding path program 1 times [2019-09-20 13:00:55,150 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:55,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:55,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:55,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:55,215 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 13:00:55,215 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:55,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:55,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:55,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:55,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:55,219 INFO L87 Difference]: Start difference. First operand 65 states and 80 transitions. Second operand 3 states. [2019-09-20 13:00:55,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:55,295 INFO L93 Difference]: Finished difference Result 108 states and 139 transitions. [2019-09-20 13:00:55,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:55,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-09-20 13:00:55,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:55,300 INFO L225 Difference]: With dead ends: 108 [2019-09-20 13:00:55,301 INFO L226 Difference]: Without dead ends: 102 [2019-09-20 13:00:55,302 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 13:00:55,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-09-20 13:00:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-09-20 13:00:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-09-20 13:00:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 132 transitions. [2019-09-20 13:00:55,326 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 132 transitions. Word has length 17 [2019-09-20 13:00:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:55,326 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 132 transitions. [2019-09-20 13:00:55,327 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 132 transitions. [2019-09-20 13:00:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-20 13:00:55,328 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:55,329 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:55,329 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:55,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:55,330 INFO L82 PathProgramCache]: Analyzing trace with hash -695621135, now seen corresponding path program 1 times [2019-09-20 13:00:55,330 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:55,330 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:55,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:55,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:55,394 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 13:00:55,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:55,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:55,395 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:55,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:55,396 INFO L87 Difference]: Start difference. First operand 102 states and 132 transitions. Second operand 3 states. [2019-09-20 13:00:55,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:55,474 INFO L93 Difference]: Finished difference Result 218 states and 297 transitions. [2019-09-20 13:00:55,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:55,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 29 [2019-09-20 13:00:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:55,477 INFO L225 Difference]: With dead ends: 218 [2019-09-20 13:00:55,478 INFO L226 Difference]: Without dead ends: 127 [2019-09-20 13:00:55,479 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 13:00:55,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2019-09-20 13:00:55,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2019-09-20 13:00:55,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2019-09-20 13:00:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 169 transitions. [2019-09-20 13:00:55,499 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 169 transitions. Word has length 29 [2019-09-20 13:00:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:55,499 INFO L475 AbstractCegarLoop]: Abstraction has 126 states and 169 transitions. [2019-09-20 13:00:55,500 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 169 transitions. [2019-09-20 13:00:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-20 13:00:55,501 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:55,502 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:55,502 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:55,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:55,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1328709660, now seen corresponding path program 1 times [2019-09-20 13:00:55,503 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:55,503 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:55,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:55,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:55,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:00:55,599 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:00:55,599 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:00:55,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:55,681 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-20 13:00:55,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:00:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream closed [2019-09-20 13:00:55,753 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 13:00:55,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2019-09-20 13:00:55,757 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:00:55,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:00:55,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:00:55,758 INFO L87 Difference]: Start difference. First operand 126 states and 169 transitions. Second operand 5 states. [2019-09-20 13:00:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:55,884 INFO L93 Difference]: Finished difference Result 292 states and 416 transitions. [2019-09-20 13:00:55,884 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:00:55,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2019-09-20 13:00:55,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:55,888 INFO L225 Difference]: With dead ends: 292 [2019-09-20 13:00:55,888 INFO L226 Difference]: Without dead ends: 177 [2019-09-20 13:00:55,889 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:00:55,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2019-09-20 13:00:55,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2019-09-20 13:00:55,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2019-09-20 13:00:55,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 243 transitions. [2019-09-20 13:00:55,934 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 243 transitions. Word has length 40 [2019-09-20 13:00:55,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:55,935 INFO L475 AbstractCegarLoop]: Abstraction has 174 states and 243 transitions. [2019-09-20 13:00:55,935 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:00:55,940 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 243 transitions. [2019-09-20 13:00:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:00:55,943 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:55,943 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:55,944 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:55,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:55,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1520942249, now seen corresponding path program 1 times [2019-09-20 13:00:55,945 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:55,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:55,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:55,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:56,086 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:00:56,087 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:56,087 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:00:56,087 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:00:56,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:00:56,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:00:56,088 INFO L87 Difference]: Start difference. First operand 174 states and 243 transitions. Second operand 4 states. [2019-09-20 13:00:56,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:56,158 INFO L93 Difference]: Finished difference Result 435 states and 639 transitions. [2019-09-20 13:00:56,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:00:56,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2019-09-20 13:00:56,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:56,161 INFO L225 Difference]: With dead ends: 435 [2019-09-20 13:00:56,162 INFO L226 Difference]: Without dead ends: 272 [2019-09-20 13:00:56,163 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:00:56,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2019-09-20 13:00:56,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 222. [2019-09-20 13:00:56,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-09-20 13:00:56,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 323 transitions. [2019-09-20 13:00:56,191 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 323 transitions. Word has length 51 [2019-09-20 13:00:56,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:56,192 INFO L475 AbstractCegarLoop]: Abstraction has 222 states and 323 transitions. [2019-09-20 13:00:56,192 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:00:56,192 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 323 transitions. [2019-09-20 13:00:56,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-20 13:00:56,195 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:56,195 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:56,197 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:56,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:56,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1574199465, now seen corresponding path program 1 times [2019-09-20 13:00:56,198 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:56,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:56,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:56,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:56,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:56,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:00:56,302 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-20 13:00:56,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:00:56,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:00:56,305 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:00:56,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:00:56,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:00:56,306 INFO L87 Difference]: Start difference. First operand 222 states and 323 transitions. Second operand 3 states. [2019-09-20 13:00:56,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:00:56,333 INFO L93 Difference]: Finished difference Result 333 states and 482 transitions. [2019-09-20 13:00:56,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:00:56,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2019-09-20 13:00:56,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:00:56,339 INFO L225 Difference]: With dead ends: 333 [2019-09-20 13:00:56,343 INFO L226 Difference]: Without dead ends: 122 [2019-09-20 13:00:56,347 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 13:00:56,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-09-20 13:00:56,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-09-20 13:00:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-09-20 13:00:56,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 166 transitions. [2019-09-20 13:00:56,367 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 166 transitions. Word has length 63 [2019-09-20 13:00:56,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:00:56,368 INFO L475 AbstractCegarLoop]: Abstraction has 122 states and 166 transitions. [2019-09-20 13:00:56,368 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:00:56,368 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 166 transitions. [2019-09-20 13:00:56,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2019-09-20 13:00:56,372 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:00:56,373 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:00:56,373 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:00:56,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:00:56,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1192820603, now seen corresponding path program 1 times [2019-09-20 13:00:56,374 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 13:00:56,374 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 13:00:56,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:56,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:00:56,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:00:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 13:00:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 13:00:56,493 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-20 13:00:56,523 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,524 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,525 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,525 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,526 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,526 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,526 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,527 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,527 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,528 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,528 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,529 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,529 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,529 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement [2019-09-20 13:00:56,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:00:56 BoogieIcfgContainer [2019-09-20 13:00:56,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:00:56,544 INFO L168 Benchmark]: Toolchain (without parser) took 2566.50 ms. Allocated memory was 132.6 MB in the beginning and 222.8 MB in the end (delta: 90.2 MB). Free memory was 87.0 MB in the beginning and 154.5 MB in the end (delta: -67.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,545 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.22 ms. Allocated memory is still 132.6 MB. Free memory was 86.7 MB in the beginning and 76.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,547 INFO L168 Benchmark]: Boogie Preprocessor took 112.50 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 76.6 MB in the beginning and 175.1 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,548 INFO L168 Benchmark]: RCFGBuilder took 402.26 ms. Allocated memory is still 199.2 MB. Free memory was 175.1 MB in the beginning and 155.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,549 INFO L168 Benchmark]: TraceAbstraction took 1753.92 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:00:56,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 132.6 MB. Free memory was 105.5 MB in the beginning and 105.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 293.22 ms. Allocated memory is still 132.6 MB. Free memory was 86.7 MB in the beginning and 76.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.50 ms. Allocated memory was 132.6 MB in the beginning and 199.2 MB in the end (delta: 66.6 MB). Free memory was 76.6 MB in the beginning and 175.1 MB in the end (delta: -98.5 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 402.26 ms. Allocated memory is still 199.2 MB. Free memory was 175.1 MB in the beginning and 155.8 MB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1753.92 ms. Allocated memory was 199.2 MB in the beginning and 222.8 MB in the end (delta: 23.6 MB). Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #t~switch4 has a C AST node but it is no IASTExpression: class org.eclipse.cdt.internal.core.dom.parser.c.CASTSwitchStatement * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int ldv_mutex = 1; [L11] int open_called = 0; VAL [\old(ldv_mutex)=4, \old(open_called)=3, ldv_mutex=1, open_called=0] [L74] int ldv_s_misc_fops_file_operations = 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L75] CALL my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L69] open_called = 0 [L70] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L75] RET my_init() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, my_init()=0, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L81] COND TRUE ldv_s_misc_fops_file_operations==0 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, open_called=0] [L82] CALL misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L57] COND TRUE __VERIFIER_nondet_int() [L59] return 1; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=1, ldv_mutex=1, open_called=0] [L82] RET misc_open() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=0, misc_open()=1, open_called=0] [L83] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=0, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L89] COND TRUE ldv_s_misc_fops_file_operations==1 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, open_called=0] [L90] CALL misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L52] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L90] RET misc_read() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=1, misc_read()=0, open_called=0] [L91] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=1, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L97] COND TRUE ldv_s_misc_fops_file_operations==2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, open_called=0] [L98] CALL misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L48] return 0; VAL [\old(ldv_mutex)=1, \old(open_called)=0, \result=0, ldv_mutex=1, open_called=0] [L98] RET misc_llseek() VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=2, misc_llseek()=0, open_called=0] [L99] ldv_s_misc_fops_file_operations++ VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=2, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L76] COND TRUE __VERIFIER_nondet_int() [L80] case 0: [L88] case 1: [L96] case 2: [L104] case 3: VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L105] COND TRUE ldv_s_misc_fops_file_operations==3 VAL [\old(ldv_mutex)=1, \old(open_called)=0, __VERIFIER_nondet_int()=3, ldv_mutex=1, ldv_s_misc_fops_file_operations=3, open_called=0] [L106] CALL misc_release() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L34] COND FALSE !(\read(open_called)) VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L41] CALL mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=1, open_called=0] [L17] ldv_mutex = 2 VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L41] RET mutex_lock() VAL [\old(ldv_mutex)=1, \old(open_called)=0, ldv_mutex=2, open_called=0] [L42] CALL mutex_lock() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] (ldv_mutex == 1) ? 0 : __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L16] CALL __blast_assert() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] [L4] __VERIFIER_error() VAL [\old(ldv_mutex)=2, \old(open_called)=0, ldv_mutex=2, open_called=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 12 procedures, 74 locations, 1 error locations. UNSAFE Result, 1.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 460 SDtfs, 147 SDslu, 514 SDs, 0 SdLazy, 98 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=5, 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: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 54 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 319 NumberOfCodeBlocks, 319 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 249 ConstructedInterpolants, 0 QuantifiedInterpolants, 15467 SizeOfPredicates, 1 NumberOfNonLiveVariables, 115 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 36/42 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...