java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 03:25:48,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 03:25:48,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 03:25:48,357 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 03:25:48,357 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 03:25:48,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 03:25:48,360 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 03:25:48,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 03:25:48,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 03:25:48,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 03:25:48,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 03:25:48,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 03:25:48,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 03:25:48,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 03:25:48,385 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 03:25:48,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 03:25:48,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 03:25:48,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 03:25:48,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 03:25:48,400 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 03:25:48,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 03:25:48,406 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 03:25:48,407 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 03:25:48,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 03:25:48,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 03:25:48,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 03:25:48,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 03:25:48,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 03:25:48,424 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 03:25:48,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 03:25:48,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 03:25:48,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 03:25:48,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 03:25:48,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 03:25:48,429 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 03:25:48,430 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 03:25:48,430 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 [2019-08-31 03:25:48,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 03:25:48,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 03:25:48,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 03:25:48,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 03:25:48,447 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 03:25:48,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 03:25:48,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 03:25:48,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 03:25:48,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 03:25:48,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 03:25:48,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 03:25:48,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 03:25:48,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 03:25:48,449 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 03:25:48,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 03:25:48,449 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 03:25:48,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 03:25:48,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 03:25:48,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 03:25:48,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 03:25:48,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 03:25:48,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 03:25:48,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 03:25:48,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 03:25:48,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 03:25:48,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 03:25:48,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 03:25:48,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 03:25:48,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 03:25:48,481 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 03:25:48,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 03:25:48,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 03:25:48,502 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 03:25:48,503 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 03:25:48,503 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/mutex_lock_int.i [2019-08-31 03:25:48,584 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883cc4427/c0928d872117418a84f98e11f13dfa1d/FLAG1a7d0eec5 [2019-08-31 03:25:49,067 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 03:25:49,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/mutex_lock_int.i [2019-08-31 03:25:49,077 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883cc4427/c0928d872117418a84f98e11f13dfa1d/FLAG1a7d0eec5 [2019-08-31 03:25:49,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/883cc4427/c0928d872117418a84f98e11f13dfa1d [2019-08-31 03:25:49,431 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 03:25:49,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 03:25:49,434 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 03:25:49,434 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 03:25:49,438 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 03:25:49,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c87a942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49, skipping insertion in model container [2019-08-31 03:25:49,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,455 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 03:25:49,482 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 03:25:49,731 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:25:49,750 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 03:25:49,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:25:49,783 INFO L192 MainTranslator]: Completed translation [2019-08-31 03:25:49,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49 WrapperNode [2019-08-31 03:25:49,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 03:25:49,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 03:25:49,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 03:25:49,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 03:25:49,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (1/1) ... [2019-08-31 03:25:49,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 03:25:49,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 03:25:49,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 03:25:49,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 03:25:49,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:25:49" (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 [2019-08-31 03:25:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 03:25:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 03:25:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-08-31 03:25:49,976 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2019-08-31 03:25:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2019-08-31 03:25:49,977 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 03:25:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 03:25:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-08-31 03:25:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2019-08-31 03:25:49,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 03:25:49,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 03:25:49,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 03:25:50,237 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 03:25:50,238 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 03:25:50,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:25:50 BoogieIcfgContainer [2019-08-31 03:25:50,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 03:25:50,246 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 03:25:50,246 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 03:25:50,247 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 03:25:50,248 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:25:50" (1/1) ... [2019-08-31 03:25:50,298 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 03:25:50,298 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 03:25:50,305 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 03:25:50,313 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 03:25:50,314 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 03:25:50,417 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-31 03:25:50,418 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,443 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:25:50,444 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,444 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2019-08-31 03:25:50,472 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-08-31 03:25:50,497 INFO L392 ElimStorePlain]: Different costs {0=[|v_old(#length)_BEFORE_CALL_1|], 3=[|v_old(#valid)_BEFORE_CALL_1|]} [2019-08-31 03:25:50,512 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-31 03:25:50,512 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,629 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-08-31 03:25:50,630 INFO L567 ElimStorePlain]: treesize reduction 9, result has 85.9 percent of original size [2019-08-31 03:25:50,651 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-08-31 03:25:50,654 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,724 INFO L567 ElimStorePlain]: treesize reduction 4, result has 91.8 percent of original size [2019-08-31 03:25:50,737 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-08-31 03:25:50,738 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,770 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:25:50,771 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,772 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:41 [2019-08-31 03:25:50,799 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 12 [2019-08-31 03:25:50,800 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,809 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:25:50,810 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,811 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:14 [2019-08-31 03:25:50,824 INFO L392 ElimStorePlain]: Different costs {0=[|v_old(#length)_BEFORE_CALL_2|], 3=[|v_old(#valid)_BEFORE_CALL_2|]} [2019-08-31 03:25:50,847 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-31 03:25:50,847 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:50,934 INFO L567 ElimStorePlain]: treesize reduction 9, result has 85.0 percent of original size [2019-08-31 03:25:50,948 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-08-31 03:25:50,949 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,017 INFO L567 ElimStorePlain]: treesize reduction 4, result has 91.1 percent of original size [2019-08-31 03:25:51,018 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,018 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:61, output treesize:41 [2019-08-31 03:25:51,033 INFO L392 ElimStorePlain]: Different costs {0=[|v_old(#length)_BEFORE_CALL_3|], 3=[|v_old(#valid)_BEFORE_CALL_3|]} [2019-08-31 03:25:51,054 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-31 03:25:51,055 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,141 INFO L567 ElimStorePlain]: treesize reduction 9, result has 85.9 percent of original size [2019-08-31 03:25:51,150 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-08-31 03:25:51,151 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,211 INFO L567 ElimStorePlain]: treesize reduction 4, result has 91.8 percent of original size [2019-08-31 03:25:51,221 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2019-08-31 03:25:51,221 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,248 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:25:51,249 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:25:51,249 INFO L221 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:65, output treesize:41 [2019-08-31 03:25:51,253 INFO L199 IcfgInterpreter]: Interpreting procedure mutex_lock with input of size 36 for LOIs [2019-08-31 03:25:51,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-31 03:25:51,279 INFO L199 IcfgInterpreter]: Interpreting procedure err with input of size 39 for LOIs [2019-08-31 03:25:51,280 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 03:25:51,281 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 03:25:51,283 INFO L193 IcfgInterpreter]: Reachable states at location errErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 49#(exists ((v_prenex_1 Int) (v_mutex_lock_~a.base_BEFORE_CALL_2 Int)) (or (and (= 4 (select |#length| v_prenex_1)) (= 1 (select (select |#memory_int| v_prenex_1) 0)) (= 1 (select |#valid| v_prenex_1)) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_1) 0)) (= 0 (select |#valid| 0)) (< v_prenex_1 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= |#NULL.base| 0) (= 4 (select |#length| v_mutex_lock_~a.base_BEFORE_CALL_2)) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (< v_mutex_lock_~a.base_BEFORE_CALL_2 |#StackHeapBarrier|) (= 1 (select (select |#memory_int| v_mutex_lock_~a.base_BEFORE_CALL_2) 0)) (= |#NULL.offset| 0) (= 1 (select |#valid| v_mutex_lock_~a.base_BEFORE_CALL_2)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))) [2019-08-31 03:25:51,308 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 03:25:51,308 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 03:25:51,311 INFO L168 Benchmark]: Toolchain (without parser) took 1877.91 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 89.1 MB in the beginning and 82.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:25:51,317 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 141.0 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-31 03:25:51,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.08 ms. Allocated memory is still 141.0 MB. Free memory was 88.7 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-31 03:25:51,322 INFO L168 Benchmark]: Boogie Preprocessor took 130.02 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 79.1 MB in the beginning and 177.4 MB in the end (delta: -98.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-08-31 03:25:51,323 INFO L168 Benchmark]: RCFGBuilder took 324.57 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 164.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:25:51,323 INFO L168 Benchmark]: Sifa took 1062.68 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 82.5 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:25:51,335 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 141.0 MB. Free memory is still 106.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 350.08 ms. Allocated memory is still 141.0 MB. Free memory was 88.7 MB in the beginning and 79.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.02 ms. Allocated memory was 141.0 MB in the beginning and 200.3 MB in the end (delta: 59.2 MB). Free memory was 79.1 MB in the beginning and 177.4 MB in the end (delta: -98.3 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 324.57 ms. Allocated memory is still 200.3 MB. Free memory was 177.4 MB in the beginning and 164.3 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * Sifa took 1062.68 ms. Allocated memory is still 200.3 MB. Free memory was 164.3 MB in the beginning and 82.5 MB in the end (delta: 81.8 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 1.0s OVERALL_TIME, 4 ICFG_INTERPRETER_ENTERED_PROCEDURES, 22 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 13 TOOLS_POST_APPLICATIONS, 0.1s TOOLS_POST_TIME, 7 TOOLS_POST_CALL_APPLICATIONS, 0.8s TOOLS_POST_CALL_TIME, 3 TOOLS_POST_RETURN_APPLICATIONS, 0.0s TOOLS_POST_RETURN_TIME, 0.9s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 22 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 6 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 0 DOMAIN_ALPHA_APPLICATIONS, 0.0s DOMAIN_ALPHA_TIME, 0 DOMAIN_WIDEN_APPLICATIONS, 0.0s DOMAIN_WIDEN_TIME, 0 DOMAIN_ISSUBSETEQ_APPLICATIONS, 0.0s DOMAIN_ISSUBSETEQ_TIME, 2 DOMAIN_ISBOTTOM_APPLICATIONS, 0.0s DOMAIN_ISBOTTOM_TIME, 0 LOOP_SUMMARIZER_APPLICATIONS, 0 LOOP_SUMMARIZER_CACHE_MISSES, 0.0s LOOP_SUMMARIZER_OVERALL_TIME, 0.0s LOOP_SUMMARIZER_NEW_COMPUTATION_TIME, 0 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 3 CALL_SUMMARIZER_APPLICATIONS, 3 CALL_SUMMARIZER_CACHE_MISSES, 0.1s CALL_SUMMARIZER_OVERALL_TIME, 0.1s CALL_SUMMARIZER_NEW_COMPUTATION_TIME, 0.0s PROCEDURE_GRAPH_BUILDER_TIME, 0.0s PATH_EXPR_TIME, 0.0s REGEX_TO_DAG_TIME, 0.0s DAG_COMPRESSION_TIME, 52 DAG_COMPRESSION_PROCESSED_NODES, 37 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 14]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 49#(exists ((v_prenex_1 Int) (v_mutex_lock_~a.base_BEFORE_CALL_2 Int)) (or (and (= 4 (select |#length| v_prenex_1)) (= 1 (select (select |#memory_int| v_prenex_1) 0)) (= 1 (select |#valid| v_prenex_1)) (<= |#NULL.base| 0) (= 0 (select (select |#memory_int| v_prenex_1) 0)) (= 0 (select |#valid| 0)) (< v_prenex_1 |#StackHeapBarrier|) (<= 0 |#NULL.base|) (= |#NULL.offset| 0) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)) (and (<= |#NULL.base| 0) (= 4 (select |#length| v_mutex_lock_~a.base_BEFORE_CALL_2)) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (< v_mutex_lock_~a.base_BEFORE_CALL_2 |#StackHeapBarrier|) (= 1 (select (select |#memory_int| v_mutex_lock_~a.base_BEFORE_CALL_2) 0)) (= |#NULL.offset| 0) (= 1 (select |#valid| v_mutex_lock_~a.base_BEFORE_CALL_2)) (<= 0 |#NULL.offset|) (<= |#NULL.offset| 0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...