/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/ldv-regression/stateful_check.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 03:50:06,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-07 03:50:06,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-07 03:50:06,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-07 03:50:06,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-07 03:50:06,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-07 03:50:06,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-07 03:50:06,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-07 03:50:06,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-07 03:50:06,952 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-07 03:50:06,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-07 03:50:06,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-07 03:50:06,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 03:50:06,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 03:50:06,960 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 03:50:06,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 03:50:06,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 03:50:06,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 03:50:06,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 03:50:06,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 03:50:06,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 03:50:06,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 03:50:06,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 03:50:06,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 03:50:06,988 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 03:50:06,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 03:50:07,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 03:50:07,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 03:50:07,001 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-07 03:50:07,035 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 03:50:07,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 03:50:07,040 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 03:50:07,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 03:50:07,040 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 03:50:07,041 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 03:50:07,041 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 03:50:07,041 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 03:50:07,041 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 03:50:07,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 03:50:07,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 03:50:07,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 03:50:07,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 03:50:07,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 03:50:07,045 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 03:50:07,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 03:50:07,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:07,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 03:50:07,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 03:50:07,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 03:50:07,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 03:50:07,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 03:50:07,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 03:50:07,047 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-11-07 03:50:07,368 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 03:50:07,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 03:50:07,394 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 03:50:07,396 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 03:50:07,396 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 03:50:07,397 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-11-07 03:50:07,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2217aaba/d7f7bf42624142588c3002c41e9b836f/FLAG2c3fdd051 [2019-11-07 03:50:07,854 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 03:50:07,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-11-07 03:50:07,861 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2217aaba/d7f7bf42624142588c3002c41e9b836f/FLAG2c3fdd051 [2019-11-07 03:50:08,305 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2217aaba/d7f7bf42624142588c3002c41e9b836f [2019-11-07 03:50:08,329 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 03:50:08,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 03:50:08,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:08,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 03:50:08,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 03:50:08,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22bcac30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08, skipping insertion in model container [2019-11-07 03:50:08,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,379 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 03:50:08,435 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 03:50:08,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:08,649 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 03:50:08,677 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 03:50:08,693 INFO L192 MainTranslator]: Completed translation [2019-11-07 03:50:08,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08 WrapperNode [2019-11-07 03:50:08,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 03:50:08,694 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 03:50:08,694 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 03:50:08,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 03:50:08,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,820 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... [2019-11-07 03:50:08,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 03:50:08,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 03:50:08,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 03:50:08,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 03:50:08,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 03:50:08,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 03:50:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 03:50:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-11-07 03:50:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-11-07 03:50:08,900 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-11-07 03:50:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2019-11-07 03:50:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2019-11-07 03:50:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2019-11-07 03:50:08,901 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2019-11-07 03:50:08,902 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2019-11-07 03:50:08,902 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2019-11-07 03:50:08,903 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 03:50:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 03:50:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-11-07 03:50:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 03:50:08,903 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-11-07 03:50:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-11-07 03:50:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2019-11-07 03:50:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2019-11-07 03:50:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2019-11-07 03:50:08,905 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2019-11-07 03:50:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2019-11-07 03:50:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2019-11-07 03:50:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 03:50:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 03:50:08,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 03:50:09,298 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 03:50:09,298 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 03:50:09,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:09 BoogieIcfgContainer [2019-11-07 03:50:09,300 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 03:50:09,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 03:50:09,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 03:50:09,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 03:50:09,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:50:08" (1/3) ... [2019-11-07 03:50:09,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315af5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:09, skipping insertion in model container [2019-11-07 03:50:09,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:50:08" (2/3) ... [2019-11-07 03:50:09,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315af5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:50:09, skipping insertion in model container [2019-11-07 03:50:09,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:50:09" (3/3) ... [2019-11-07 03:50:09,307 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2019-11-07 03:50:09,316 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 03:50:09,323 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 03:50:09,334 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 03:50:09,363 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 03:50:09,363 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 03:50:09,363 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 03:50:09,363 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 03:50:09,363 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 03:50:09,363 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 03:50:09,364 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 03:50:09,364 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 03:50:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-11-07 03:50:09,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-07 03:50:09,386 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:09,387 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:09,389 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:09,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:09,393 INFO L82 PathProgramCache]: Analyzing trace with hash 1533915537, now seen corresponding path program 1 times [2019-11-07 03:50:09,400 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:09,401 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061082428] [2019-11-07 03:50:09,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:09,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:09,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:09,510 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061082428] [2019-11-07 03:50:09,511 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:09,511 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-07 03:50:09,513 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978078554] [2019-11-07 03:50:09,517 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-07 03:50:09,518 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:09,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-07 03:50:09,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-07 03:50:09,535 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2019-11-07 03:50:09,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:09,567 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2019-11-07 03:50:09,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-07 03:50:09,569 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-11-07 03:50:09,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:09,578 INFO L225 Difference]: With dead ends: 114 [2019-11-07 03:50:09,578 INFO L226 Difference]: Without dead ends: 55 [2019-11-07 03:50:09,582 INFO L630 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 [2019-11-07 03:50:09,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-11-07 03:50:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-11-07 03:50:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-11-07 03:50:09,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2019-11-07 03:50:09,628 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 14 [2019-11-07 03:50:09,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:09,628 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2019-11-07 03:50:09,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-07 03:50:09,629 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2019-11-07 03:50:09,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-07 03:50:09,630 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:09,630 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 03:50:09,630 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:09,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:09,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1690534739, now seen corresponding path program 1 times [2019-11-07 03:50:09,631 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:09,631 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250189295] [2019-11-07 03:50:09,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:09,697 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250189295] [2019-11-07 03:50:09,697 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:09,697 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:50:09,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526106366] [2019-11-07 03:50:09,699 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:50:09,700 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:09,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:50:09,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:50:09,700 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 3 states. [2019-11-07 03:50:09,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:09,767 INFO L93 Difference]: Finished difference Result 92 states and 119 transitions. [2019-11-07 03:50:09,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:50:09,768 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-11-07 03:50:09,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:09,772 INFO L225 Difference]: With dead ends: 92 [2019-11-07 03:50:09,772 INFO L226 Difference]: Without dead ends: 86 [2019-11-07 03:50:09,773 INFO L630 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 [2019-11-07 03:50:09,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-11-07 03:50:09,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-11-07 03:50:09,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-11-07 03:50:09,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2019-11-07 03:50:09,794 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 15 [2019-11-07 03:50:09,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:09,794 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2019-11-07 03:50:09,794 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:50:09,795 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2019-11-07 03:50:09,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-11-07 03:50:09,796 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:09,796 INFO L410 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] [2019-11-07 03:50:09,796 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:09,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:09,797 INFO L82 PathProgramCache]: Analyzing trace with hash 350118788, now seen corresponding path program 1 times [2019-11-07 03:50:09,797 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:09,798 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229552518] [2019-11-07 03:50:09,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:09,864 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229552518] [2019-11-07 03:50:09,864 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:09,864 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:50:09,865 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843438543] [2019-11-07 03:50:09,865 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:50:09,865 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:09,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:50:09,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:50:09,866 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand 3 states. [2019-11-07 03:50:09,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:09,966 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2019-11-07 03:50:09,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:50:09,969 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-11-07 03:50:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:09,974 INFO L225 Difference]: With dead ends: 186 [2019-11-07 03:50:09,974 INFO L226 Difference]: Without dead ends: 109 [2019-11-07 03:50:09,975 INFO L630 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 [2019-11-07 03:50:09,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-11-07 03:50:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-11-07 03:50:09,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-11-07 03:50:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 145 transitions. [2019-11-07 03:50:09,999 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 145 transitions. Word has length 26 [2019-11-07 03:50:09,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:09,999 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 145 transitions. [2019-11-07 03:50:09,999 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:50:09,999 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 145 transitions. [2019-11-07 03:50:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-07 03:50:10,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:10,002 INFO L410 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] [2019-11-07 03:50:10,002 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:10,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:10,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1904034500, now seen corresponding path program 1 times [2019-11-07 03:50:10,003 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:10,003 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830532277] [2019-11-07 03:50:10,004 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:10,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:10,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830532277] [2019-11-07 03:50:10,081 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104606281] [2019-11-07 03:50:10,082 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:50:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:10,148 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-07 03:50:10,155 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 03:50:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:10,182 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 03:50:10,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 03:50:10,235 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1291343240] [2019-11-07 03:50:10,266 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-11-07 03:50:10,266 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 03:50:10,275 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 03:50:10,287 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 03:50:10,288 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 03:50:10,391 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 15 for LOIs [2019-11-07 03:50:10,885 INFO L197 IcfgInterpreter]: Interpreting procedure my_init with input of size 11 for LOIs [2019-11-07 03:50:10,888 INFO L197 IcfgInterpreter]: Interpreting procedure misc_open with input of size 13 for LOIs [2019-11-07 03:50:10,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-11-07 03:50:10,893 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-07 03:50:11,555 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2019-11-07 03:50:12,120 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-11-07 03:50:12,283 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2019-11-07 03:50:12,467 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-11-07 03:50:12,610 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-11-07 03:50:12,610 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [5, 4, 4] total 25 [2019-11-07 03:50:12,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322734976] [2019-11-07 03:50:12,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-11-07 03:50:12,613 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:12,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-11-07 03:50:12,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=478, Unknown=0, NotChecked=0, Total=600 [2019-11-07 03:50:12,614 INFO L87 Difference]: Start difference. First operand 108 states and 145 transitions. Second operand 21 states. [2019-11-07 03:50:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:13,804 INFO L93 Difference]: Finished difference Result 256 states and 352 transitions. [2019-11-07 03:50:13,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-11-07 03:50:13,805 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 35 [2019-11-07 03:50:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:13,807 INFO L225 Difference]: With dead ends: 256 [2019-11-07 03:50:13,807 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 03:50:13,809 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 83 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=218, Invalid=838, Unknown=0, NotChecked=0, Total=1056 [2019-11-07 03:50:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 03:50:13,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 134. [2019-11-07 03:50:13,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-11-07 03:50:13,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 181 transitions. [2019-11-07 03:50:13,827 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 181 transitions. Word has length 35 [2019-11-07 03:50:13,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:13,827 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 181 transitions. [2019-11-07 03:50:13,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-11-07 03:50:13,828 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 181 transitions. [2019-11-07 03:50:13,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-11-07 03:50:13,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:13,829 INFO L410 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] [2019-11-07 03:50:14,034 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 03:50:14,034 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:14,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:14,034 INFO L82 PathProgramCache]: Analyzing trace with hash -852685177, now seen corresponding path program 1 times [2019-11-07 03:50:14,037 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:14,037 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120451757] [2019-11-07 03:50:14,037 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-07 03:50:14,109 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120451757] [2019-11-07 03:50:14,109 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:14,109 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-07 03:50:14,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043710648] [2019-11-07 03:50:14,110 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 03:50:14,110 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:14,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 03:50:14,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-07 03:50:14,112 INFO L87 Difference]: Start difference. First operand 134 states and 181 transitions. Second operand 4 states. [2019-11-07 03:50:14,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:14,171 INFO L93 Difference]: Finished difference Result 301 states and 429 transitions. [2019-11-07 03:50:14,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 03:50:14,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2019-11-07 03:50:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:14,175 INFO L225 Difference]: With dead ends: 301 [2019-11-07 03:50:14,176 INFO L226 Difference]: Without dead ends: 202 [2019-11-07 03:50:14,177 INFO L630 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 [2019-11-07 03:50:14,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-11-07 03:50:14,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 178. [2019-11-07 03:50:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-11-07 03:50:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 253 transitions. [2019-11-07 03:50:14,217 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 253 transitions. Word has length 45 [2019-11-07 03:50:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:14,218 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 253 transitions. [2019-11-07 03:50:14,218 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 03:50:14,218 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 253 transitions. [2019-11-07 03:50:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 03:50:14,220 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:14,221 INFO L410 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] [2019-11-07 03:50:14,221 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:14,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:14,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1405166671, now seen corresponding path program 1 times [2019-11-07 03:50:14,222 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:14,222 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23436350] [2019-11-07 03:50:14,222 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:14,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 03:50:14,281 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-11-07 03:50:14,282 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23436350] [2019-11-07 03:50:14,282 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 03:50:14,283 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 03:50:14,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308089251] [2019-11-07 03:50:14,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 03:50:14,290 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 03:50:14,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 03:50:14,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 03:50:14,291 INFO L87 Difference]: Start difference. First operand 178 states and 253 transitions. Second operand 3 states. [2019-11-07 03:50:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 03:50:14,312 INFO L93 Difference]: Finished difference Result 254 states and 360 transitions. [2019-11-07 03:50:14,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 03:50:14,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-11-07 03:50:14,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 03:50:14,317 INFO L225 Difference]: With dead ends: 254 [2019-11-07 03:50:14,317 INFO L226 Difference]: Without dead ends: 111 [2019-11-07 03:50:14,318 INFO L630 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 [2019-11-07 03:50:14,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-11-07 03:50:14,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-11-07 03:50:14,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-11-07 03:50:14,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 148 transitions. [2019-11-07 03:50:14,336 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 148 transitions. Word has length 56 [2019-11-07 03:50:14,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 03:50:14,337 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 148 transitions. [2019-11-07 03:50:14,337 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 03:50:14,338 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 148 transitions. [2019-11-07 03:50:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-07 03:50:14,346 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 03:50:14,346 INFO L410 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] [2019-11-07 03:50:14,349 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 03:50:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 03:50:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash -657034657, now seen corresponding path program 1 times [2019-11-07 03:50:14,350 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 03:50:14,350 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439655126] [2019-11-07 03:50:14,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 03:50:14,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 03:50:14,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-07 03:50:14,454 INFO L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-11-07 03:50:14,454 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-07 03:50:14,484 WARN L1295 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 [2019-11-07 03:50:14,485 WARN L1295 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 [2019-11-07 03:50:14,486 WARN L1295 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 [2019-11-07 03:50:14,486 WARN L1295 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 [2019-11-07 03:50:14,486 WARN L1295 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 [2019-11-07 03:50:14,487 WARN L1295 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 [2019-11-07 03:50:14,487 WARN L1295 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 [2019-11-07 03:50:14,488 WARN L1295 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 [2019-11-07 03:50:14,488 WARN L1295 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 [2019-11-07 03:50:14,488 WARN L1295 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 [2019-11-07 03:50:14,489 WARN L1295 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 [2019-11-07 03:50:14,489 WARN L1295 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 [2019-11-07 03:50:14,490 WARN L1295 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 [2019-11-07 03:50:14,490 WARN L1295 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 [2019-11-07 03:50:14,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:50:14 BoogieIcfgContainer [2019-11-07 03:50:14,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-07 03:50:14,508 INFO L168 Benchmark]: Toolchain (without parser) took 6173.97 ms. Allocated memory was 136.3 MB in the beginning and 285.7 MB in the end (delta: 149.4 MB). Free memory was 101.3 MB in the beginning and 152.6 MB in the end (delta: -51.3 MB). Peak memory consumption was 98.1 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,509 INFO L168 Benchmark]: CDTParser took 0.97 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.71 ms. Allocated memory is still 136.3 MB. Free memory was 101.1 MB in the beginning and 90.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,511 INFO L168 Benchmark]: Boogie Preprocessor took 130.04 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 179.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,512 INFO L168 Benchmark]: RCFGBuilder took 475.18 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 155.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,513 INFO L168 Benchmark]: TraceAbstraction took 5205.44 ms. Allocated memory was 201.3 MB in the beginning and 285.7 MB in the end (delta: 84.4 MB). Free memory was 155.7 MB in the beginning and 152.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2019-11-07 03:50:14,521 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.97 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 352.71 ms. Allocated memory is still 136.3 MB. Free memory was 101.1 MB in the beginning and 90.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.04 ms. Allocated memory was 136.3 MB in the beginning and 201.3 MB in the end (delta: 65.0 MB). Free memory was 90.8 MB in the beginning and 179.4 MB in the end (delta: -88.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 475.18 ms. Allocated memory is still 201.3 MB. Free memory was 179.4 MB in the beginning and 155.7 MB in the end (delta: 23.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5205.44 ms. Allocated memory was 201.3 MB in the beginning and 285.7 MB in the end (delta: 84.4 MB). Free memory was 155.7 MB in the beginning and 152.6 MB in the end (delta: 3.0 MB). Peak memory consumption was 87.5 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; [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; [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; [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; [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; [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 [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, 62 locations, 1 error locations. Result: UNSAFE, OverallTime: 5.1s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 372 SDtfs, 185 SDslu, 357 SDs, 0 SdLazy, 492 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 95 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 48 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 14595 SizeOfPredicates, 1 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 36/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 628, ICFG_INTERPRETER_ENTERED_PROCEDURES: 5, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 24, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 30, TOOLS_POST_TIME[ms]: 55, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME[ms]: 45, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME[ms]: 49, TOOLS_QUANTIFIERELIM_APPLICATIONS: 54, TOOLS_QUANTIFIERELIM_TIME[ms]: 115, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 22, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 82, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME[ms]: 280, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 41, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 6, DOMAIN_ISBOTTOM_APPLICATIONS: 24, DOMAIN_ISBOTTOM_TIME[ms]: 61, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 269, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 268, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME[ms]: 18, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 17, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 20, DAG_COMPRESSION_PROCESSED_NODES: 225, DAG_COMPRESSION_RETAINED_NODES: 81, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...