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 0.1.24-13a467a-m [2019-10-15 02:56:09,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 02:56:09,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 02:56:09,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 02:56:09,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 02:56:09,808 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 02:56:09,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 02:56:09,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 02:56:09,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 02:56:09,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 02:56:09,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 02:56:09,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 02:56:09,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 02:56:09,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 02:56:09,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 02:56:09,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 02:56:09,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 02:56:09,821 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 02:56:09,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 02:56:09,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 02:56:09,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 02:56:09,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 02:56:09,829 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 02:56:09,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 02:56:09,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 02:56:09,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 02:56:09,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 02:56:09,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 02:56:09,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 02:56:09,867 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 02:56:09,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 02:56:09,868 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 02:56:09,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 02:56:09,869 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 02:56:09,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 02:56:09,869 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 02:56:09,870 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 02:56:09,870 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 02:56:09,870 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 02:56:09,871 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 02:56:09,871 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 02:56:09,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 02:56:09,872 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 02:56:09,872 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 02:56:09,872 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 02:56:09,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 02:56:09,873 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 02:56:09,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 02:56:09,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 02:56:09,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 02:56:09,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:56:09,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 02:56:09,874 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 02:56:09,874 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 02:56:09,874 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 02:56:09,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 02:56:09,875 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 02:56:09,875 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 [2019-10-15 02:56:10,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 02:56:10,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 02:56:10,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 02:56:10,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 02:56:10,150 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 02:56:10,151 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-10-15 02:56:10,223 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea36b93b/f4f84c5b059448b09d7562975dc873df/FLAGc4386c463 [2019-10-15 02:56:10,668 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 02:56:10,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/stateful_check.c [2019-10-15 02:56:10,677 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea36b93b/f4f84c5b059448b09d7562975dc873df/FLAGc4386c463 [2019-10-15 02:56:11,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea36b93b/f4f84c5b059448b09d7562975dc873df [2019-10-15 02:56:11,054 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 02:56:11,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 02:56:11,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:11,057 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 02:56:11,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 02:56:11,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bf4cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11, skipping insertion in model container [2019-10-15 02:56:11,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,071 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 02:56:11,095 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 02:56:11,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:11,276 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 02:56:11,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 02:56:11,311 INFO L192 MainTranslator]: Completed translation [2019-10-15 02:56:11,312 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11 WrapperNode [2019-10-15 02:56:11,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 02:56:11,313 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 02:56:11,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 02:56:11,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 02:56:11,403 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,414 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,414 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... [2019-10-15 02:56:11,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 02:56:11,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 02:56:11,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 02:56:11,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 02:56:11,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 02:56:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 02:56:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 02:56:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-15 02:56:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-10-15 02:56:11,495 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure check_final_state [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_release [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_llseek [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_read [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_open [2019-10-15 02:56:11,496 INFO L138 BoogieDeclarations]: Found implementation of procedure my_init [2019-10-15 02:56:11,497 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 02:56:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 02:56:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-15 02:56:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 02:56:11,497 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure check_final_state [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure misc_release [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure misc_llseek [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure misc_read [2019-10-15 02:56:11,498 INFO L130 BoogieDeclarations]: Found specification of procedure misc_open [2019-10-15 02:56:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure my_init [2019-10-15 02:56:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 02:56:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 02:56:11,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 02:56:11,871 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 02:56:11,871 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 02:56:11,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:11 BoogieIcfgContainer [2019-10-15 02:56:11,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 02:56:11,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 02:56:11,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 02:56:11,877 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 02:56:11,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:56:11" (1/3) ... [2019-10-15 02:56:11,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43abee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:11, skipping insertion in model container [2019-10-15 02:56:11,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:56:11" (2/3) ... [2019-10-15 02:56:11,878 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43abee18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:56:11, skipping insertion in model container [2019-10-15 02:56:11,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:56:11" (3/3) ... [2019-10-15 02:56:11,880 INFO L109 eAbstractionObserver]: Analyzing ICFG stateful_check.c [2019-10-15 02:56:11,889 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 02:56:11,897 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 02:56:11,907 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 02:56:11,930 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 02:56:11,931 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 02:56:11,931 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 02:56:11,931 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 02:56:11,931 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 02:56:11,931 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 02:56:11,931 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 02:56:11,932 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 02:56:11,951 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2019-10-15 02:56:11,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 02:56:11,957 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:11,958 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:11,960 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:11,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1533915537, now seen corresponding path program 1 times [2019-10-15 02:56:11,975 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:11,976 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904359760] [2019-10-15 02:56:11,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:11,976 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:11,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:12,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:12,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,088 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904359760] [2019-10-15 02:56:12,089 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:12,089 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-15 02:56:12,090 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214811342] [2019-10-15 02:56:12,094 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 02:56:12,094 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:12,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 02:56:12,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 02:56:12,111 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2019-10-15 02:56:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:12,146 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2019-10-15 02:56:12,146 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 02:56:12,147 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-15 02:56:12,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:12,159 INFO L225 Difference]: With dead ends: 114 [2019-10-15 02:56:12,159 INFO L226 Difference]: Without dead ends: 55 [2019-10-15 02:56:12,163 INFO L600 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 [2019-10-15 02:56:12,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-10-15 02:56:12,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-10-15 02:56:12,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-10-15 02:56:12,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2019-10-15 02:56:12,231 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 14 [2019-10-15 02:56:12,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:12,232 INFO L462 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2019-10-15 02:56:12,232 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 02:56:12,232 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2019-10-15 02:56:12,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-15 02:56:12,235 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:12,235 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 02:56:12,236 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:12,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:12,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1690534739, now seen corresponding path program 1 times [2019-10-15 02:56:12,238 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:12,238 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210283662] [2019-10-15 02:56:12,238 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,239 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,239 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,341 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210283662] [2019-10-15 02:56:12,341 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:12,342 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:56:12,342 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513352919] [2019-10-15 02:56:12,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:56:12,345 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:12,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:56:12,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:56:12,346 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 3 states. [2019-10-15 02:56:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:12,399 INFO L93 Difference]: Finished difference Result 92 states and 119 transitions. [2019-10-15 02:56:12,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:56:12,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-15 02:56:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:12,405 INFO L225 Difference]: With dead ends: 92 [2019-10-15 02:56:12,405 INFO L226 Difference]: Without dead ends: 86 [2019-10-15 02:56:12,406 INFO L600 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 [2019-10-15 02:56:12,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2019-10-15 02:56:12,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2019-10-15 02:56:12,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-10-15 02:56:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 112 transitions. [2019-10-15 02:56:12,436 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 112 transitions. Word has length 15 [2019-10-15 02:56:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:12,436 INFO L462 AbstractCegarLoop]: Abstraction has 86 states and 112 transitions. [2019-10-15 02:56:12,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:56:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 112 transitions. [2019-10-15 02:56:12,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-15 02:56:12,442 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:12,442 INFO L380 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] [2019-10-15 02:56:12,442 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:12,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:12,445 INFO L82 PathProgramCache]: Analyzing trace with hash 350118788, now seen corresponding path program 1 times [2019-10-15 02:56:12,445 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:12,445 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727526438] [2019-10-15 02:56:12,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,446 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,446 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:12,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:12,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,510 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727526438] [2019-10-15 02:56:12,510 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:12,510 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:56:12,511 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647657734] [2019-10-15 02:56:12,511 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:56:12,511 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:12,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:56:12,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:56:12,512 INFO L87 Difference]: Start difference. First operand 86 states and 112 transitions. Second operand 3 states. [2019-10-15 02:56:12,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:12,588 INFO L93 Difference]: Finished difference Result 186 states and 255 transitions. [2019-10-15 02:56:12,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:56:12,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-15 02:56:12,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:12,593 INFO L225 Difference]: With dead ends: 186 [2019-10-15 02:56:12,593 INFO L226 Difference]: Without dead ends: 109 [2019-10-15 02:56:12,594 INFO L600 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 [2019-10-15 02:56:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2019-10-15 02:56:12,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 108. [2019-10-15 02:56:12,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2019-10-15 02:56:12,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 145 transitions. [2019-10-15 02:56:12,612 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 145 transitions. Word has length 26 [2019-10-15 02:56:12,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:12,612 INFO L462 AbstractCegarLoop]: Abstraction has 108 states and 145 transitions. [2019-10-15 02:56:12,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:56:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 145 transitions. [2019-10-15 02:56:12,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-10-15 02:56:12,614 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:12,614 INFO L380 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] [2019-10-15 02:56:12,615 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:12,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:12,615 INFO L82 PathProgramCache]: Analyzing trace with hash -1904034500, now seen corresponding path program 1 times [2019-10-15 02:56:12,615 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:12,616 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062957439] [2019-10-15 02:56:12,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,616 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:12,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:12,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062957439] [2019-10-15 02:56:12,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012840813] [2019-10-15 02:56:12,708 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 [2019-10-15 02:56:12,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:12,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 02:56:12,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 02:56:12,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,795 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 02:56:12,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 02:56:12,863 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [330748260] [2019-10-15 02:56:12,905 INFO L162 IcfgInterpreter]: Started Sifa with 33 locations of interest [2019-10-15 02:56:12,905 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 02:56:12,915 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 02:56:12,937 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 02:56:12,938 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 02:56:13,037 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 15 for LOIs [2019-10-15 02:56:15,824 INFO L199 IcfgInterpreter]: Interpreting procedure my_init with input of size 9 for LOIs [2019-10-15 02:56:15,829 INFO L199 IcfgInterpreter]: Interpreting procedure misc_open with input of size 13 for LOIs [2019-10-15 02:56:15,837 INFO L199 IcfgInterpreter]: Interpreting procedure misc_release with input of size 1 for LOIs [2019-10-15 02:56:15,840 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2019-10-15 02:56:15,843 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 02:56:16,307 WARN L191 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2019-10-15 02:56:16,491 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 24 [2019-10-15 02:56:16,677 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2019-10-15 02:56:16,909 WARN L191 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 21 [2019-10-15 02:56:17,184 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 22 [2019-10-15 02:56:17,187 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-15 02:56:17,188 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5, 4, 4] total 22 [2019-10-15 02:56:17,188 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021528833] [2019-10-15 02:56:17,192 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-10-15 02:56:17,193 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:17,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-10-15 02:56:17,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=354, Unknown=0, NotChecked=0, Total=462 [2019-10-15 02:56:17,194 INFO L87 Difference]: Start difference. First operand 108 states and 145 transitions. Second operand 18 states. [2019-10-15 02:56:17,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:17,926 INFO L93 Difference]: Finished difference Result 251 states and 347 transitions. [2019-10-15 02:56:17,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-10-15 02:56:17,927 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 35 [2019-10-15 02:56:17,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:17,929 INFO L225 Difference]: With dead ends: 251 [2019-10-15 02:56:17,931 INFO L226 Difference]: Without dead ends: 152 [2019-10-15 02:56:17,933 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 87 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2019-10-15 02:56:17,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2019-10-15 02:56:17,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 134. [2019-10-15 02:56:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-10-15 02:56:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 181 transitions. [2019-10-15 02:56:17,964 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 181 transitions. Word has length 35 [2019-10-15 02:56:17,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:17,965 INFO L462 AbstractCegarLoop]: Abstraction has 134 states and 181 transitions. [2019-10-15 02:56:17,965 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-10-15 02:56:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 181 transitions. [2019-10-15 02:56:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-10-15 02:56:17,969 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:17,969 INFO L380 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] [2019-10-15 02:56:18,172 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 02:56:18,172 INFO L410 AbstractCegarLoop]: === Iteration 5 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:18,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:18,173 INFO L82 PathProgramCache]: Analyzing trace with hash -852685177, now seen corresponding path program 1 times [2019-10-15 02:56:18,174 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:18,174 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182944688] [2019-10-15 02:56:18,174 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,175 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,175 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-15 02:56:18,236 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182944688] [2019-10-15 02:56:18,236 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:18,236 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 02:56:18,236 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130731588] [2019-10-15 02:56:18,237 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 02:56:18,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:18,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 02:56:18,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 02:56:18,238 INFO L87 Difference]: Start difference. First operand 134 states and 181 transitions. Second operand 4 states. [2019-10-15 02:56:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:18,300 INFO L93 Difference]: Finished difference Result 301 states and 429 transitions. [2019-10-15 02:56:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 02:56:18,301 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2019-10-15 02:56:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:18,308 INFO L225 Difference]: With dead ends: 301 [2019-10-15 02:56:18,308 INFO L226 Difference]: Without dead ends: 202 [2019-10-15 02:56:18,309 INFO L600 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 [2019-10-15 02:56:18,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-10-15 02:56:18,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 178. [2019-10-15 02:56:18,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-10-15 02:56:18,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 253 transitions. [2019-10-15 02:56:18,341 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 253 transitions. Word has length 45 [2019-10-15 02:56:18,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:18,341 INFO L462 AbstractCegarLoop]: Abstraction has 178 states and 253 transitions. [2019-10-15 02:56:18,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 02:56:18,342 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 253 transitions. [2019-10-15 02:56:18,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 02:56:18,345 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:18,345 INFO L380 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] [2019-10-15 02:56:18,346 INFO L410 AbstractCegarLoop]: === Iteration 6 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:18,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:18,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1405166671, now seen corresponding path program 1 times [2019-10-15 02:56:18,346 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:18,346 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935799160] [2019-10-15 02:56:18,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,347 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:18,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 02:56:18,431 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-10-15 02:56:18,431 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935799160] [2019-10-15 02:56:18,432 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 02:56:18,432 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 02:56:18,432 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812472688] [2019-10-15 02:56:18,432 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 02:56:18,433 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 02:56:18,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 02:56:18,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 02:56:18,434 INFO L87 Difference]: Start difference. First operand 178 states and 253 transitions. Second operand 3 states. [2019-10-15 02:56:18,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 02:56:18,449 INFO L93 Difference]: Finished difference Result 254 states and 360 transitions. [2019-10-15 02:56:18,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 02:56:18,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2019-10-15 02:56:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 02:56:18,452 INFO L225 Difference]: With dead ends: 254 [2019-10-15 02:56:18,452 INFO L226 Difference]: Without dead ends: 111 [2019-10-15 02:56:18,455 INFO L600 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 [2019-10-15 02:56:18,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-15 02:56:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-10-15 02:56:18,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-15 02:56:18,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 148 transitions. [2019-10-15 02:56:18,467 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 148 transitions. Word has length 56 [2019-10-15 02:56:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 02:56:18,468 INFO L462 AbstractCegarLoop]: Abstraction has 111 states and 148 transitions. [2019-10-15 02:56:18,468 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 02:56:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 148 transitions. [2019-10-15 02:56:18,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-10-15 02:56:18,472 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 02:56:18,472 INFO L380 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] [2019-10-15 02:56:18,472 INFO L410 AbstractCegarLoop]: === Iteration 7 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 02:56:18,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 02:56:18,473 INFO L82 PathProgramCache]: Analyzing trace with hash -657034657, now seen corresponding path program 1 times [2019-10-15 02:56:18,473 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 02:56:18,473 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599544768] [2019-10-15 02:56:18,473 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,474 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 02:56:18,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 02:56:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 02:56:18,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-15 02:56:18,562 INFO L168 tionRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2019-10-15 02:56:18,562 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-15 02:56:18,597 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 [2019-10-15 02:56:18,599 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 [2019-10-15 02:56:18,600 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 [2019-10-15 02:56:18,601 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 [2019-10-15 02:56:18,601 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 [2019-10-15 02:56:18,603 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 [2019-10-15 02:56:18,603 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 [2019-10-15 02:56:18,603 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 [2019-10-15 02:56:18,604 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 [2019-10-15 02:56:18,604 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 [2019-10-15 02:56:18,605 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 [2019-10-15 02:56:18,605 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 [2019-10-15 02:56:18,611 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 [2019-10-15 02:56:18,613 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 [2019-10-15 02:56:18,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:56:18 BoogieIcfgContainer [2019-10-15 02:56:18,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 02:56:18,628 INFO L168 Benchmark]: Toolchain (without parser) took 7572.61 ms. Allocated memory was 139.5 MB in the beginning and 336.6 MB in the end (delta: 197.1 MB). Free memory was 103.3 MB in the beginning and 275.0 MB in the end (delta: -171.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:18,629 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-15 02:56:18,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.86 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 92.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:18,630 INFO L168 Benchmark]: Boogie Preprocessor took 122.22 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.8 MB in the beginning and 181.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:18,631 INFO L168 Benchmark]: RCFGBuilder took 437.21 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 158.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:18,632 INFO L168 Benchmark]: TraceAbstraction took 6752.68 ms. Allocated memory was 203.9 MB in the beginning and 336.6 MB in the end (delta: 132.6 MB). Free memory was 158.5 MB in the beginning and 275.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-10-15 02:56:18,635 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory is still 121.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 255.86 ms. Allocated memory is still 139.5 MB. Free memory was 102.9 MB in the beginning and 92.8 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.22 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 92.8 MB in the beginning and 181.7 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.21 ms. Allocated memory is still 203.9 MB. Free memory was 181.7 MB in the beginning and 158.5 MB in the end (delta: 23.2 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6752.68 ms. Allocated memory was 203.9 MB in the beginning and 336.6 MB in the end (delta: 132.6 MB). Free memory was 158.5 MB in the beginning and 275.0 MB in the end (delta: -116.5 MB). Peak memory consumption was 16.1 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: 6.6s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 376 SDtfs, 198 SDslu, 391 SDs, 0 SdLazy, 392 SolverSat, 73 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 99 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 1.7s 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, 43 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]: 2938, ICFG_INTERPRETER_ENTERED_PROCEDURES: 6, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 337, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 245, TOOLS_POST_TIME[ms]: 163, TOOLS_POST_CALL_APPLICATIONS: 69, TOOLS_POST_CALL_TIME[ms]: 122, TOOLS_POST_RETURN_APPLICATIONS: 64, TOOLS_POST_RETURN_TIME[ms]: 94, TOOLS_QUANTIFIERELIM_APPLICATIONS: 377, TOOLS_QUANTIFIERELIM_TIME[ms]: 275, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 8, FLUID_QUERY_TIME[ms]: 15, FLUID_QUERIES: 365, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 177, DOMAIN_JOIN_TIME[ms]: 2173, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 14, DOMAIN_WIDEN_TIME[ms]: 139, DOMAIN_ISSUBSETEQ_APPLICATIONS: 28, DOMAIN_ISSUBSETEQ_TIME[ms]: 42, DOMAIN_ISBOTTOM_APPLICATIONS: 35, DOMAIN_ISBOTTOM_TIME[ms]: 60, LOOP_SUMMARIZER_APPLICATIONS: 14, LOOP_SUMMARIZER_CACHE_MISSES: 14, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 1191, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 1190, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 28, CALL_SUMMARIZER_APPLICATIONS: 64, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME[ms]: 38, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 38, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 9, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 25, DAG_COMPRESSION_PROCESSED_NODES: 245, DAG_COMPRESSION_RETAINED_NODES: 167, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...