./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:07:05,935 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:07:05,937 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:07:05,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:07:05,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:07:05,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:07:05,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:07:05,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:07:05,990 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:07:05,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:07:05,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:07:05,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:07:05,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:07:05,994 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:07:05,995 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:07:05,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:07:05,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:07:05,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:07:05,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:07:06,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:07:06,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:07:06,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:07:06,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:07:06,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:07:06,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:07:06,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:07:06,019 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:07:06,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:07:06,020 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:07:06,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:07:06,021 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:07:06,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:07:06,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:07:06,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:07:06,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:07:06,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:07:06,026 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:07:06,027 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:07:06,027 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:07:06,027 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:07:06,028 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:07:06,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-12-15 14:07:06,055 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:07:06,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:07:06,056 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:07:06,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:07:06,057 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:07:06,057 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:07:06,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:07:06,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:07:06,058 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:07:06,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:07:06,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:07:06,059 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:07:06,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:07:06,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:07:06,059 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:07:06,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:07:06,061 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:07:06,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:07:06,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:07:06,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:07:06,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:06,062 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:07:06,062 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:07:06,062 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 14:07:06,062 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 14:07:06,062 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:07:06,063 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-12-15 14:07:06,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:07:06,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:07:06,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:07:06,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:07:06,331 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:07:06,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-15 14:07:06,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d197011d9/16e55c7e20154de7bd2a00b93194a74d/FLAG55b40aa12 [2021-12-15 14:07:06,895 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:07:06,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-15 14:07:06,921 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d197011d9/16e55c7e20154de7bd2a00b93194a74d/FLAG55b40aa12 [2021-12-15 14:07:07,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d197011d9/16e55c7e20154de7bd2a00b93194a74d [2021-12-15 14:07:07,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:07:07,404 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:07:07,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:07,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:07:07,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:07:07,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:07,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787a8f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07, skipping insertion in model container [2021-12-15 14:07:07,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:07,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:07:07,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:07:07,622 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-15 14:07:07,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:07,799 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:07:07,809 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-15 14:07:07,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:07,937 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:07:07,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07 WrapperNode [2021-12-15 14:07:07,938 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:07,939 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:07,939 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:07:07,939 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:07:07,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:07,963 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,059 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1583 [2021-12-15 14:07:08,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:08,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:07:08,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:07:08,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:07:08,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,079 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:07:08,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:07:08,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:07:08,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:07:08,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (1/1) ... [2021-12-15 14:07:08,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:08,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:07:08,173 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:07:08,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:07:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-12-15 14:07:08,215 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-12-15 14:07:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:07:08,215 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-12-15 14:07:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-12-15 14:07:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-12-15 14:07:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-12-15 14:07:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-12-15 14:07:08,216 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-12-15 14:07:08,216 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-15 14:07:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-15 14:07:08,217 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-15 14:07:08,217 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-15 14:07:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-12-15 14:07:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-12-15 14:07:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-12-15 14:07:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-12-15 14:07:08,218 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-12-15 14:07:08,218 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-12-15 14:07:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-15 14:07:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-15 14:07:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 14:07:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-15 14:07:08,219 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-15 14:07:08,219 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-12-15 14:07:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-12-15 14:07:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:07:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:07:08,220 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-12-15 14:07:08,220 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-12-15 14:07:08,479 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:07:08,481 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:07:08,600 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,650 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-15 14:07:08,653 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-15 14:07:08,694 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-15 14:07:08,709 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-15 14:07:08,715 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,715 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,718 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,726 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,736 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,739 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:08,741 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:09,275 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-12-15 14:07:09,276 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-12-15 14:07:09,277 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2021-12-15 14:07:09,277 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2021-12-15 14:07:09,277 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2021-12-15 14:07:09,277 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2021-12-15 14:07:09,277 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-15 14:07:09,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-15 14:07:09,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-12-15 14:07:09,278 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-12-15 14:07:09,316 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:07:09,325 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:07:09,325 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 14:07:09,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:09 BoogieIcfgContainer [2021-12-15 14:07:09,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:07:09,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:07:09,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:07:09,332 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:07:09,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:07:07" (1/3) ... [2021-12-15 14:07:09,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb6a846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:09, skipping insertion in model container [2021-12-15 14:07:09,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:07" (2/3) ... [2021-12-15 14:07:09,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2eb6a846 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:09, skipping insertion in model container [2021-12-15 14:07:09,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:09" (3/3) ... [2021-12-15 14:07:09,335 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-12-15 14:07:09,341 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:07:09,341 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 14:07:09,388 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:07:09,394 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:07:09,395 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 14:07:09,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-15 14:07:09,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-15 14:07:09,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:09,440 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:09,441 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:09,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:09,446 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2021-12-15 14:07:09,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:09,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959375164] [2021-12-15 14:07:09,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:09,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:09,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:09,607 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:09,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959375164] [2021-12-15 14:07:09,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959375164] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:09,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:09,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:09,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403372047] [2021-12-15 14:07:09,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:09,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:09,626 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:09,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:09,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:09,661 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:09,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:09,763 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2021-12-15 14:07:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:09,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-15 14:07:09,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:09,785 INFO L225 Difference]: With dead ends: 623 [2021-12-15 14:07:09,789 INFO L226 Difference]: Without dead ends: 619 [2021-12-15 14:07:09,790 INFO L932 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 [2021-12-15 14:07:09,793 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:09,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:09,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-12-15 14:07:09,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2021-12-15 14:07:09,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2021-12-15 14:07:09,869 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2021-12-15 14:07:09,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:09,870 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2021-12-15 14:07:09,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:09,870 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2021-12-15 14:07:09,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 14:07:09,870 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:09,871 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:09,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 14:07:09,871 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:09,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:09,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2021-12-15 14:07:09,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:09,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384704181] [2021-12-15 14:07:09,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:09,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:09,917 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:09,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384704181] [2021-12-15 14:07:09,919 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384704181] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:09,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:09,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:09,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452366556] [2021-12-15 14:07:09,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:09,920 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:09,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:09,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:09,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:09,922 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:09,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:09,968 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2021-12-15 14:07:09,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:09,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 14:07:09,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:09,974 INFO L225 Difference]: With dead ends: 606 [2021-12-15 14:07:09,975 INFO L226 Difference]: Without dead ends: 606 [2021-12-15 14:07:09,978 INFO L932 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 [2021-12-15 14:07:09,979 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:09,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:09,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-15 14:07:10,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2021-12-15 14:07:10,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2021-12-15 14:07:10,031 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2021-12-15 14:07:10,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:10,032 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2021-12-15 14:07:10,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:10,034 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2021-12-15 14:07:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 14:07:10,034 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:10,034 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:10,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 14:07:10,035 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:10,036 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2021-12-15 14:07:10,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:10,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625471689] [2021-12-15 14:07:10,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:10,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:10,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 14:07:10,087 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625471689] [2021-12-15 14:07:10,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625471689] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:10,088 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:10,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:07:10,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952779566] [2021-12-15 14:07:10,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:10,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:10,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 14:07:10,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:10,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:10,089 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:10,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:10,206 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2021-12-15 14:07:10,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:10,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 14:07:10,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:10,212 INFO L225 Difference]: With dead ends: 602 [2021-12-15 14:07:10,212 INFO L226 Difference]: Without dead ends: 599 [2021-12-15 14:07:10,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:10,218 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:10,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 14:07:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-15 14:07:10,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-15 14:07:10,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:10,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2021-12-15 14:07:10,246 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2021-12-15 14:07:10,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:10,246 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2021-12-15 14:07:10,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:10,246 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2021-12-15 14:07:10,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 14:07:10,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:10,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:10,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 14:07:10,248 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:10,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:10,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2021-12-15 14:07:10,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 14:07:10,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649029082] [2021-12-15 14:07:10,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:10,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 14:07:10,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 14:07:10,254 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:07:10,260 INFO L158 Benchmark]: Toolchain (without parser) took 2855.62ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 63.3MB in the end (delta: -9.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2021-12-15 14:07:10,260 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:10,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 533.41ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 50.2MB in the end (delta: 3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:10,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.44ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 42.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:10,265 INFO L158 Benchmark]: Boogie Preprocessor took 67.18ms. Allocated memory is still 92.3MB. Free memory was 42.9MB in the beginning and 38.2MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:10,265 INFO L158 Benchmark]: RCFGBuilder took 1199.53ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 38.2MB in the beginning and 55.4MB in the end (delta: -17.2MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:10,266 INFO L158 Benchmark]: TraceAbstraction took 929.58ms. Allocated memory is still 111.1MB. Free memory was 54.8MB in the beginning and 63.3MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:10,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 92.3MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 533.41ms. Allocated memory is still 92.3MB. Free memory was 53.8MB in the beginning and 50.2MB in the end (delta: 3.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.44ms. Allocated memory is still 92.3MB. Free memory was 50.2MB in the beginning and 42.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.18ms. Allocated memory is still 92.3MB. Free memory was 42.9MB in the beginning and 38.2MB in the end (delta: 4.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1199.53ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 38.2MB in the beginning and 55.4MB in the end (delta: -17.2MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * TraceAbstraction took 929.58ms. Allocated memory is still 111.1MB. Free memory was 54.8MB in the beginning and 63.3MB in the end (delta: -8.6MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:07:10,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 14:07:12,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 14:07:12,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 14:07:12,164 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 14:07:12,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 14:07:12,168 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 14:07:12,169 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 14:07:12,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 14:07:12,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 14:07:12,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 14:07:12,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 14:07:12,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 14:07:12,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 14:07:12,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 14:07:12,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 14:07:12,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 14:07:12,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 14:07:12,195 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 14:07:12,198 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 14:07:12,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 14:07:12,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 14:07:12,204 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 14:07:12,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 14:07:12,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 14:07:12,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 14:07:12,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 14:07:12,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 14:07:12,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 14:07:12,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 14:07:12,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 14:07:12,229 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 14:07:12,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 14:07:12,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 14:07:12,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 14:07:12,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 14:07:12,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 14:07:12,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 14:07:12,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 14:07:12,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 14:07:12,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 14:07:12,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 14:07:12,240 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-12-15 14:07:12,267 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 14:07:12,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 14:07:12,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 14:07:12,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 14:07:12,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 14:07:12,270 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 14:07:12,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 14:07:12,271 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 14:07:12,272 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 14:07:12,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 14:07:12,272 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 14:07:12,273 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 14:07:12,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 14:07:12,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 14:07:12,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 14:07:12,274 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-12-15 14:07:12,274 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-12-15 14:07:12,274 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-12-15 14:07:12,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 14:07:12,274 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 14:07:12,275 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 14:07:12,275 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 14:07:12,275 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 14:07:12,275 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 14:07:12,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 14:07:12,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 14:07:12,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 14:07:12,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:12,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 14:07:12,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 14:07:12,277 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 14:07:12,277 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 14:07:12,277 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 14:07:12,278 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 14:07:12,278 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfc29f03d3be9b41eb07ac14f0f7eac45bf3a60a4a6601e3132f720b72534d53 [2021-12-15 14:07:12,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 14:07:12,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 14:07:12,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 14:07:12,606 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 14:07:12,607 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 14:07:12,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-15 14:07:12,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc73c131/8d64294685bf4883bde192de81a14867/FLAG5ff898062 [2021-12-15 14:07:13,207 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 14:07:13,210 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c [2021-12-15 14:07:13,229 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc73c131/8d64294685bf4883bde192de81a14867/FLAG5ff898062 [2021-12-15 14:07:13,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cc73c131/8d64294685bf4883bde192de81a14867 [2021-12-15 14:07:13,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 14:07:13,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 14:07:13,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:13,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 14:07:13,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 14:07:13,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:13" (1/1) ... [2021-12-15 14:07:13,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cad338 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:13, skipping insertion in model container [2021-12-15 14:07:13,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 02:07:13" (1/1) ... [2021-12-15 14:07:13,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 14:07:13,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 14:07:13,916 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-15 14:07:14,074 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:14,089 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 14:07:14,101 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ntdrivers-simplified/cdaudio_simpl1.cil-1.c[2074,2087] [2021-12-15 14:07:14,207 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 14:07:14,234 INFO L208 MainTranslator]: Completed translation [2021-12-15 14:07:14,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14 WrapperNode [2021-12-15 14:07:14,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 14:07:14,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:14,236 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 14:07:14,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 14:07:14,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,340 INFO L137 Inliner]: procedures = 41, calls = 108, calls flagged for inlining = 16, calls inlined = 16, statements flattened = 1444 [2021-12-15 14:07:14,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 14:07:14,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 14:07:14,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 14:07:14,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 14:07:14,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 14:07:14,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 14:07:14,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 14:07:14,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 14:07:14,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (1/1) ... [2021-12-15 14:07:14,474 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 14:07:14,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 14:07:14,500 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 14:07:14,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 14:07:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure SendSrbSynchronous [2021-12-15 14:07:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure SendSrbSynchronous [2021-12-15 14:07:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 14:07:14,541 INFO L130 BoogieDeclarations]: Found specification of procedure AG_SetStatusAndReturn [2021-12-15 14:07:14,541 INFO L138 BoogieDeclarations]: Found implementation of procedure AG_SetStatusAndReturn [2021-12-15 14:07:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 14:07:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2021-12-15 14:07:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2021-12-15 14:07:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioIsPlayActive [2021-12-15 14:07:14,542 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioIsPlayActive [2021-12-15 14:07:14,542 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2021-12-15 14:07:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2021-12-15 14:07:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2021-12-15 14:07:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2021-12-15 14:07:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure HPCdrCompletion [2021-12-15 14:07:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure HPCdrCompletion [2021-12-15 14:07:14,543 INFO L130 BoogieDeclarations]: Found specification of procedure KeSetEvent [2021-12-15 14:07:14,543 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSetEvent [2021-12-15 14:07:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSignalCompletion [2021-12-15 14:07:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSignalCompletion [2021-12-15 14:07:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2021-12-15 14:07:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2021-12-15 14:07:14,544 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2021-12-15 14:07:14,544 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2021-12-15 14:07:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioSendToNextDriver [2021-12-15 14:07:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioSendToNextDriver [2021-12-15 14:07:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 14:07:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 14:07:14,545 INFO L130 BoogieDeclarations]: Found specification of procedure CdAudioForwardIrpSynchronous [2021-12-15 14:07:14,545 INFO L138 BoogieDeclarations]: Found implementation of procedure CdAudioForwardIrpSynchronous [2021-12-15 14:07:14,809 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 14:07:14,810 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 14:07:14,905 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:14,960 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2021-12-15 14:07:14,962 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2021-12-15 14:07:15,036 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,055 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2021-12-15 14:07:15,055 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2021-12-15 14:07:15,061 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,061 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,064 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,073 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,085 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,088 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,092 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L305: CdAudioPnp_#res#1 := 0bv32; [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##258: assume !false; [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##257: assume false; [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##286: assume !false; [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##285: assume false; [2021-12-15 14:07:15,671 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume !false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##46: assume false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##133: assume false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##134: assume !false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume !false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume !false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##14: assume false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##331: assume false; [2021-12-15 14:07:15,672 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##332: assume !false; [2021-12-15 14:07:15,701 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 14:07:15,711 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 14:07:15,711 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 14:07:15,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:15 BoogieIcfgContainer [2021-12-15 14:07:15,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 14:07:15,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 14:07:15,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 14:07:15,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 14:07:15,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 02:07:13" (1/3) ... [2021-12-15 14:07:15,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afb2dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:15, skipping insertion in model container [2021-12-15 14:07:15,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 02:07:14" (2/3) ... [2021-12-15 14:07:15,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afb2dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 02:07:15, skipping insertion in model container [2021-12-15 14:07:15,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 02:07:15" (3/3) ... [2021-12-15 14:07:15,722 INFO L111 eAbstractionObserver]: Analyzing ICFG cdaudio_simpl1.cil-1.c [2021-12-15 14:07:15,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 14:07:15,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 14:07:15,784 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 14:07:15,790 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 14:07:15,790 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-15 14:07:15,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) [2021-12-15 14:07:15,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-15 14:07:15,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:15,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:15,832 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:15,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:15,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2107937846, now seen corresponding path program 1 times [2021-12-15 14:07:15,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:07:15,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1985679664] [2021-12-15 14:07:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:15,851 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:07:15,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:07:15,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:07:15,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 14:07:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:16,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 14:07:16,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:07:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:16,064 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:07:16,065 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:07:16,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1985679664] [2021-12-15 14:07:16,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1985679664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:16,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:16,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:16,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424995191] [2021-12-15 14:07:16,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:16,075 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:16,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:07:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:16,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:16,107 INFO L87 Difference]: Start difference. First operand has 471 states, 368 states have (on average 1.5108695652173914) internal successors, (556), 388 states have internal predecessors, (556), 87 states have call successors, (87), 13 states have call predecessors, (87), 13 states have return successors, (87), 82 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:16,244 INFO L93 Difference]: Finished difference Result 623 states and 925 transitions. [2021-12-15 14:07:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:16,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-15 14:07:16,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:16,265 INFO L225 Difference]: With dead ends: 623 [2021-12-15 14:07:16,268 INFO L226 Difference]: Without dead ends: 619 [2021-12-15 14:07:16,271 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:16,275 INFO L933 BasicCegarLoop]: 730 mSDtfsCounter, 690 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 952 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:16,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [690 Valid, 952 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:16,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2021-12-15 14:07:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 603. [2021-12-15 14:07:16,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.4732510288065843) internal successors, (716), 494 states have internal predecessors, (716), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:16,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 904 transitions. [2021-12-15 14:07:16,357 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 904 transitions. Word has length 8 [2021-12-15 14:07:16,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:16,357 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 904 transitions. [2021-12-15 14:07:16,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:16,358 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 904 transitions. [2021-12-15 14:07:16,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 14:07:16,358 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:16,358 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:16,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 14:07:16,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:07:16,568 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:16,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:16,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1313128955, now seen corresponding path program 1 times [2021-12-15 14:07:16,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:07:16,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232989308] [2021-12-15 14:07:16,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:16,570 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:07:16,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:07:16,571 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:07:16,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 14:07:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:16,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 14:07:16,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:07:16,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:16,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:07:16,755 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:07:16,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232989308] [2021-12-15 14:07:16,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232989308] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:16,756 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:16,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 14:07:16,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478715670] [2021-12-15 14:07:16,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:16,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:16,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:07:16,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:16,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:16,764 INFO L87 Difference]: Start difference. First operand 603 states and 904 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:16,811 INFO L93 Difference]: Finished difference Result 606 states and 905 transitions. [2021-12-15 14:07:16,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:16,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 14:07:16,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:16,816 INFO L225 Difference]: With dead ends: 606 [2021-12-15 14:07:16,816 INFO L226 Difference]: Without dead ends: 606 [2021-12-15 14:07:16,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:16,818 INFO L933 BasicCegarLoop]: 704 mSDtfsCounter, 385 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 946 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:16,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [446 Valid, 946 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 14:07:16,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-12-15 14:07:16,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 603. [2021-12-15 14:07:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 486 states have (on average 1.47119341563786) internal successors, (715), 494 states have internal predecessors, (715), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:16,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 903 transitions. [2021-12-15 14:07:16,860 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 903 transitions. Word has length 9 [2021-12-15 14:07:16,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:16,861 INFO L470 AbstractCegarLoop]: Abstraction has 603 states and 903 transitions. [2021-12-15 14:07:16,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:16,862 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 903 transitions. [2021-12-15 14:07:16,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-15 14:07:16,862 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:16,862 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:16,875 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 14:07:17,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:07:17,080 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:17,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:17,081 INFO L85 PathProgramCache]: Analyzing trace with hash 929457737, now seen corresponding path program 1 times [2021-12-15 14:07:17,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:07:17,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1320206041] [2021-12-15 14:07:17,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:17,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:07:17,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:07:17,083 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:07:17,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 14:07:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 14:07:17,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 14:07:17,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 14:07:17,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 14:07:17,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 14:07:17,224 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 14:07:17,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1320206041] [2021-12-15 14:07:17,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1320206041] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 14:07:17,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 14:07:17,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 14:07:17,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752747770] [2021-12-15 14:07:17,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 14:07:17,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 14:07:17,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 14:07:17,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 14:07:17,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:17,230 INFO L87 Difference]: Start difference. First operand 603 states and 903 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:17,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 14:07:17,339 INFO L93 Difference]: Finished difference Result 602 states and 902 transitions. [2021-12-15 14:07:17,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 14:07:17,339 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-15 14:07:17,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 14:07:17,343 INFO L225 Difference]: With dead ends: 602 [2021-12-15 14:07:17,343 INFO L226 Difference]: Without dead ends: 599 [2021-12-15 14:07:17,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 14:07:17,344 INFO L933 BasicCegarLoop]: 703 mSDtfsCounter, 418 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 479 SdHoareTripleChecker+Valid, 850 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 14:07:17,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [479 Valid, 850 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 14:07:17,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-12-15 14:07:17,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2021-12-15 14:07:17,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 483 states have (on average 1.453416149068323) internal successors, (702), 490 states have internal predecessors, (702), 94 states have call successors, (94), 18 states have call predecessors, (94), 21 states have return successors, (94), 94 states have call predecessors, (94), 79 states have call successors, (94) [2021-12-15 14:07:17,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 890 transitions. [2021-12-15 14:07:17,370 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 890 transitions. Word has length 9 [2021-12-15 14:07:17,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 14:07:17,370 INFO L470 AbstractCegarLoop]: Abstraction has 599 states and 890 transitions. [2021-12-15 14:07:17,371 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 14:07:17,371 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 890 transitions. [2021-12-15 14:07:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 14:07:17,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 14:07:17,371 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 14:07:17,385 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 14:07:17,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:07:17,584 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK === [errorFnErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK] === [2021-12-15 14:07:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 14:07:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1469618489, now seen corresponding path program 1 times [2021-12-15 14:07:17,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 14:07:17,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002999390] [2021-12-15 14:07:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 14:07:17,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 14:07:17,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 14:07:17,586 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 14:07:17,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 14:07:17,679 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 14:07:17,872 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 14:07:17,873 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 14:07:17,876 INFO L158 Benchmark]: Toolchain (without parser) took 4191.77ms. Allocated memory was 65.0MB in the beginning and 107.0MB in the end (delta: 41.9MB). Free memory was 43.0MB in the beginning and 49.2MB in the end (delta: -6.2MB). Peak memory consumption was 34.9MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,876 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 65.0MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 14:07:17,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 550.48ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 29.6MB in the end (delta: 13.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.63ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 55.2MB in the end (delta: -25.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,877 INFO L158 Benchmark]: Boogie Preprocessor took 115.24ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 50.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,877 INFO L158 Benchmark]: RCFGBuilder took 1251.15ms. Allocated memory is still 79.7MB. Free memory was 50.4MB in the beginning and 33.0MB in the end (delta: 17.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,878 INFO L158 Benchmark]: TraceAbstraction took 2157.48ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 32.6MB in the beginning and 49.2MB in the end (delta: -16.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-15 14:07:17,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 65.0MB. Free memory was 45.7MB in the beginning and 45.6MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 550.48ms. Allocated memory is still 65.0MB. Free memory was 42.8MB in the beginning and 29.6MB in the end (delta: 13.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.63ms. Allocated memory was 65.0MB in the beginning and 79.7MB in the end (delta: 14.7MB). Free memory was 29.6MB in the beginning and 55.2MB in the end (delta: -25.6MB). Peak memory consumption was 5.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 115.24ms. Allocated memory is still 79.7MB. Free memory was 55.2MB in the beginning and 50.4MB in the end (delta: 4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1251.15ms. Allocated memory is still 79.7MB. Free memory was 50.4MB in the beginning and 33.0MB in the end (delta: 17.4MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2157.48ms. Allocated memory was 79.7MB in the beginning and 107.0MB in the end (delta: 27.3MB). Free memory was 32.6MB in the beginning and 49.2MB in the end (delta: -16.6MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 14:07:17,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable