/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:28:00,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:28:00,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:28:00,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:28:00,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:28:00,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:28:00,746 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:28:00,753 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:28:00,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:28:00,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:28:00,771 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:28:00,773 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:28:00,774 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:28:00,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:28:00,781 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:28:00,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:28:00,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:28:00,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:28:00,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:28:00,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:28:00,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:28:00,813 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:28:00,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:28:00,818 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:28:00,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:28:00,829 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:28:00,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:28:00,832 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:28:00,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:28:00,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:28:00,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:28:00,837 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:28:00,840 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:28:00,841 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:28:00,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:28:00,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:28:00,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:28:00,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:28:00,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:28:00,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:28:00,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:28:00,857 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:28:00,918 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:28:00,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:28:00,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:28:00,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:28:00,924 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:28:00,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:28:00,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:28:00,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:28:00,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:28:00,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:28:00,926 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:28:00,927 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:28:00,927 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:28:00,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:28:00,928 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:28:00,928 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:28:00,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:28:00,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:28:00,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:28:00,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:28:00,930 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:28:00,930 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:28:00,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:28:00,931 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:28:00,931 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:28:00,931 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:28:01,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:28:01,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:28:01,475 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:28:01,477 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:28:01,478 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:28:01,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-23 06:28:01,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fae4cac4/d3150b8104e14aae8b1131eb41e35626/FLAG90eb886ce [2020-12-23 06:28:02,374 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:28:02,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2020-12-23 06:28:02,404 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fae4cac4/d3150b8104e14aae8b1131eb41e35626/FLAG90eb886ce [2020-12-23 06:28:02,596 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6fae4cac4/d3150b8104e14aae8b1131eb41e35626 [2020-12-23 06:28:02,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:28:02,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:28:02,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:28:02,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:28:02,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:28:02,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:28:02" (1/1) ... [2020-12-23 06:28:02,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4818acb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:02, skipping insertion in model container [2020-12-23 06:28:02,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:28:02" (1/1) ... [2020-12-23 06:28:02,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:28:02,697 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list,],base],StructAccessExpression[IdentifierExpression[~list,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~next,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~next,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new,],base],StructAccessExpression[IdentifierExpression[~new,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~new,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~prev,],base],StructAccessExpression[IdentifierExpression[~prev,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~next,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~next,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~prev,],base],StructAccessExpression[IdentifierExpression[~prev,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~le~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~le~0,],base],StructAccessExpression[IdentifierExpression[~le~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~1,] left hand side expression in assignment: lhs: VariableLHS[~m~1,] [2020-12-23 06:28:03,258 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-23 06:28:03,271 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-23 06:28:03,275 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-23 06:28:03,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:28:03,297 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list,],base],StructAccessExpression[IdentifierExpression[~list,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~list,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~list,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~next,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~next,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new,],base],StructAccessExpression[IdentifierExpression[~new,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~new,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~new,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~prev,],base],StructAccessExpression[IdentifierExpression[~prev,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~next,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[8],StructAccessExpression[IdentifierExpression[~next,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~prev,],base],StructAccessExpression[IdentifierExpression[~prev,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~le~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~le~0,],base],StructAccessExpression[IdentifierExpression[~le~0,],offset]]] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~0,] left hand side expression in assignment: lhs: VariableLHS[~n~0,] left hand side expression in assignment: lhs: VariableLHS[~m~1,] left hand side expression in assignment: lhs: VariableLHS[~m~1,] [2020-12-23 06:28:03,406 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2020-12-23 06:28:03,410 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2020-12-23 06:28:03,414 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2020-12-23 06:28:03,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:28:03,517 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:28:03,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03 WrapperNode [2020-12-23 06:28:03,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:28:03,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:28:03,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:28:03,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:28:03,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:28:03,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:28:03,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:28:03,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:28:03,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... [2020-12-23 06:28:03,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:28:03,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:28:03,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:28:03,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:28:03,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:28:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 06:28:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 06:28:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:28:03,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:28:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:28:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-23 06:28:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:28:03,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:28:03,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:28:04,900 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:28:04,901 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2020-12-23 06:28:04,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:28:04 BoogieIcfgContainer [2020-12-23 06:28:04,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:28:04,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:28:04,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:28:04,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:28:04,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:28:02" (1/3) ... [2020-12-23 06:28:04,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c0e369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:28:04, skipping insertion in model container [2020-12-23 06:28:04,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:28:03" (2/3) ... [2020-12-23 06:28:04,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21c0e369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:28:04, skipping insertion in model container [2020-12-23 06:28:04,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:28:04" (3/3) ... [2020-12-23 06:28:04,914 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2020-12-23 06:28:04,921 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:28:04,932 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-23 06:28:04,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-23 06:28:05,004 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:28:05,004 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:28:05,005 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:28:05,005 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:28:05,005 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:28:05,005 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:28:05,005 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:28:05,005 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:28:05,026 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2020-12-23 06:28:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 06:28:05,033 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:28:05,034 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:28:05,035 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:28:05,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:28:05,044 INFO L82 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2020-12-23 06:28:05,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:28:05,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694857642] [2020-12-23 06:28:05,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:28:05,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:28:05,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:28:05,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694857642] [2020-12-23 06:28:05,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:28:05,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 06:28:05,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220653932] [2020-12-23 06:28:05,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-23 06:28:05,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:28:05,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-23 06:28:05,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-23 06:28:05,295 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2020-12-23 06:28:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:28:05,332 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2020-12-23 06:28:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-23 06:28:05,334 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2020-12-23 06:28:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:28:05,348 INFO L225 Difference]: With dead ends: 172 [2020-12-23 06:28:05,348 INFO L226 Difference]: Without dead ends: 84 [2020-12-23 06:28:05,355 INFO L677 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 [2020-12-23 06:28:05,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-23 06:28:05,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-12-23 06:28:05,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-12-23 06:28:05,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2020-12-23 06:28:05,413 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2020-12-23 06:28:05,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:28:05,413 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2020-12-23 06:28:05,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-23 06:28:05,414 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2020-12-23 06:28:05,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 06:28:05,414 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:28:05,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:28:05,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:28:05,415 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:28:05,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:28:05,416 INFO L82 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2020-12-23 06:28:05,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:28:05,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180471198] [2020-12-23 06:28:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:28:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:28:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:28:05,590 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180471198] [2020-12-23 06:28:05,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:28:05,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:28:05,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202153990] [2020-12-23 06:28:05,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:28:05,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:28:05,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:28:05,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:28:05,594 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 4 states. [2020-12-23 06:28:05,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:28:05,822 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2020-12-23 06:28:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:28:05,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-23 06:28:05,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:28:05,826 INFO L225 Difference]: With dead ends: 135 [2020-12-23 06:28:05,826 INFO L226 Difference]: Without dead ends: 131 [2020-12-23 06:28:05,831 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:28:05,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-23 06:28:05,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2020-12-23 06:28:05,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-12-23 06:28:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2020-12-23 06:28:05,844 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2020-12-23 06:28:05,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:28:05,845 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2020-12-23 06:28:05,845 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:28:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2020-12-23 06:28:05,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-23 06:28:05,847 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:28:05,847 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:28:05,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:28:05,848 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:28:05,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:28:05,849 INFO L82 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2020-12-23 06:28:05,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:28:05,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942442385] [2020-12-23 06:28:05,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:28:05,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:28:06,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:28:06,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942442385] [2020-12-23 06:28:06,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:28:06,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:28:06,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461798679] [2020-12-23 06:28:06,065 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:28:06,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:28:06,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:28:06,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:28:06,067 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 4 states. [2020-12-23 06:28:06,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:28:06,470 INFO L93 Difference]: Finished difference Result 219 states and 262 transitions. [2020-12-23 06:28:06,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 06:28:06,471 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-12-23 06:28:06,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:28:06,474 INFO L225 Difference]: With dead ends: 219 [2020-12-23 06:28:06,474 INFO L226 Difference]: Without dead ends: 140 [2020-12-23 06:28:06,475 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:28:06,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-12-23 06:28:06,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 101. [2020-12-23 06:28:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-23 06:28:06,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2020-12-23 06:28:06,490 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2020-12-23 06:28:06,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:28:06,490 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2020-12-23 06:28:06,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:28:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2020-12-23 06:28:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-23 06:28:06,492 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:28:06,492 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:28:06,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:28:06,493 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:28:06,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:28:06,494 INFO L82 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2020-12-23 06:28:06,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:28:06,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958451233] [2020-12-23 06:28:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:28:06,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:28:06,609 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:28:06,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:28:06,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:28:06,734 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:28:06,734 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:28:06,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-23 06:28:06,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:28:06 BoogieIcfgContainer [2020-12-23 06:28:06,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:28:06,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:28:06,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:28:06,834 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:28:06,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:28:04" (3/4) ... [2020-12-23 06:28:06,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-23 06:28:06,938 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-sets/test_mutex_double_lock.i-witness.graphml [2020-12-23 06:28:06,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:28:06,942 INFO L168 Benchmark]: Toolchain (without parser) took 4337.53 ms. Allocated memory is still 154.1 MB. Free memory was 129.3 MB in the beginning and 113.5 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,943 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 154.1 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:28:06,943 INFO L168 Benchmark]: CACSL2BoogieTranslator took 912.41 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 101.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,944 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.76 ms. Allocated memory is still 154.1 MB. Free memory was 101.4 MB in the beginning and 98.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,945 INFO L168 Benchmark]: Boogie Preprocessor took 58.15 ms. Allocated memory is still 154.1 MB. Free memory was 98.1 MB in the beginning and 94.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,946 INFO L168 Benchmark]: RCFGBuilder took 1211.50 ms. Allocated memory is still 154.1 MB. Free memory was 94.7 MB in the beginning and 122.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,949 INFO L168 Benchmark]: TraceAbstraction took 1927.98 ms. Allocated memory is still 154.1 MB. Free memory was 122.0 MB in the beginning and 118.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,949 INFO L168 Benchmark]: Witness Printer took 104.69 ms. Allocated memory is still 154.1 MB. Free memory was 118.7 MB in the beginning and 113.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-23 06:28:06,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 154.1 MB. Free memory is still 133.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 912.41 ms. Allocated memory is still 154.1 MB. Free memory was 129.1 MB in the beginning and 101.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 111.76 ms. Allocated memory is still 154.1 MB. Free memory was 101.4 MB in the beginning and 98.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 58.15 ms. Allocated memory is still 154.1 MB. Free memory was 98.1 MB in the beginning and 94.7 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1211.50 ms. Allocated memory is still 154.1 MB. Free memory was 94.7 MB in the beginning and 122.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 45.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1927.98 ms. Allocated memory is still 154.1 MB. Free memory was 122.0 MB in the beginning and 118.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 8.0 GB. * Witness Printer took 104.69 ms. Allocated memory is still 154.1 MB. Free memory was 118.7 MB in the beginning and 113.5 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 669]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={7:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={7:0}] [L660] return 0; VAL [mutexes={7:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={7:0}] [L660] return 0; VAL [mutexes={7:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={7:0}] [L578] return ptr; VAL [mutexes={7:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L608] head->next [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={7:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={7:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={7:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={7:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] reach_error() VAL [mutexes={7:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 165 SDslu, 281 SDs, 0 SdLazy, 105 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 82 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...