./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/sigma.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sigma.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:21:06,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:21:06,701 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:21:06,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:21:06,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:21:06,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:21:06,777 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:21:06,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:21:06,779 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:21:06,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:21:06,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:21:06,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:21:06,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:21:06,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:21:06,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:21:06,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:21:06,791 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:21:06,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:21:06,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:21:06,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:21:06,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:21:06,801 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:21:06,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:21:06,802 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:21:06,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:21:06,807 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:21:06,807 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:21:06,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:21:06,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:21:06,808 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:21:06,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:21:06,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:21:06,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:21:06,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:21:06,810 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:21:06,810 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:21:06,811 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:21:06,811 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:21:06,811 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:21:06,812 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:21:06,812 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:21:06,813 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:21:06,831 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:21:06,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:21:06,832 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:21:06,832 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:21:06,833 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:21:06,833 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:21:06,834 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:21:06,834 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:21:06,834 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:21:06,834 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:21:06,835 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:21:06,835 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:21:06,835 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:21:06,835 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:21:06,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:21:06,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:21:06,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:21:06,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:21:06,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:06,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:21:06,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:21:06,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:21:06,839 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:21:06,839 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2021-12-15 12:21:07,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:21:07,058 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:21:07,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:21:07,061 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:21:07,061 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:21:07,062 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2021-12-15 12:21:07,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1497ce9df/19e921ae5a514299bbb199057611c4b1/FLAGa3ece8e8b [2021-12-15 12:21:07,569 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:21:07,570 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2021-12-15 12:21:07,586 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1497ce9df/19e921ae5a514299bbb199057611c4b1/FLAGa3ece8e8b [2021-12-15 12:21:07,598 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1497ce9df/19e921ae5a514299bbb199057611c4b1 [2021-12-15 12:21:07,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:21:07,603 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:21:07,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:07,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:21:07,606 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:21:07,607 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:07" (1/1) ... [2021-12-15 12:21:07,609 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2761d3ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:07, skipping insertion in model container [2021-12-15 12:21:07,609 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:07" (1/1) ... [2021-12-15 12:21:07,613 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:21:07,650 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:21:08,051 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/pthread/sigma.i[55285,55298] [2021-12-15 12:21:08,065 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:08,070 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:21:08,108 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/pthread/sigma.i[55285,55298] [2021-12-15 12:21:08,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:08,162 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:21:08,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08 WrapperNode [2021-12-15 12:21:08,162 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:08,163 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:08,163 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:21:08,163 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:21:08,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,192 INFO L137 Inliner]: procedures = 323, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2021-12-15 12:21:08,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:08,193 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:21:08,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:21:08,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:21:08,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,208 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:21:08,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:21:08,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:21:08,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:21:08,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (1/1) ... [2021-12-15 12:21:08,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:08,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:21:08,247 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 12:21:08,259 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 12:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:21:08,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-12-15 12:21:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-12-15 12:21:08,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:21:08,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:21:08,275 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:21:08,389 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:21:08,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:21:08,523 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:21:08,528 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:21:08,528 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 12:21:08,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:08 BoogieIcfgContainer [2021-12-15 12:21:08,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:21:08,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:21:08,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:21:08,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:21:08,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:21:07" (1/3) ... [2021-12-15 12:21:08,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54826f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:08, skipping insertion in model container [2021-12-15 12:21:08,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:08" (2/3) ... [2021-12-15 12:21:08,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54826f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:08, skipping insertion in model container [2021-12-15 12:21:08,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:08" (3/3) ... [2021-12-15 12:21:08,535 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2021-12-15 12:21:08,538 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:21:08,538 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:21:08,538 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:21:08,539 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:21:08,553 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,553 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,553 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,553 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,554 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,555 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:08,555 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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) 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 12:21:08,558 INFO L158 Benchmark]: Toolchain (without parser) took 954.97ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 56.1MB in the beginning and 58.4MB in the end (delta: -2.4MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,559 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:21:08,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 558.37ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 55.8MB in the beginning and 79.3MB in the end (delta: -23.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.57ms. Allocated memory is still 125.8MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,560 INFO L158 Benchmark]: Boogie Preprocessor took 17.92ms. Allocated memory is still 125.8MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,560 INFO L158 Benchmark]: RCFGBuilder took 318.25ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 61.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,561 INFO L158 Benchmark]: TraceAbstraction took 26.41ms. Allocated memory is still 125.8MB. Free memory was 61.2MB in the beginning and 58.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:08,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory is still 47.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 558.37ms. Allocated memory was 90.2MB in the beginning and 125.8MB in the end (delta: 35.7MB). Free memory was 55.8MB in the beginning and 79.3MB in the end (delta: -23.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.57ms. Allocated memory is still 125.8MB. Free memory was 79.3MB in the beginning and 77.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.92ms. Allocated memory is still 125.8MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 318.25ms. Allocated memory is still 125.8MB. Free memory was 75.2MB in the beginning and 61.9MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 26.41ms. Allocated memory is still 125.8MB. Free memory was 61.2MB in the beginning and 58.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. 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 12:21:08,588 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/AutomizerReach.xml -i ../sv-benchmarks/c/pthread/sigma.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:21:10,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:21:10,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:21:10,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:21:10,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:21:10,280 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:21:10,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:21:10,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:21:10,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:21:10,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:21:10,285 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:21:10,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:21:10,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:21:10,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:21:10,302 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:21:10,304 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:21:10,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:21:10,307 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:21:10,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:21:10,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:21:10,314 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:21:10,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:21:10,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:21:10,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:21:10,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:21:10,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:21:10,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:21:10,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:21:10,326 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:21:10,326 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:21:10,327 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:21:10,327 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:21:10,328 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:21:10,329 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:21:10,330 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:21:10,330 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:21:10,331 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:21:10,331 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:21:10,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:21:10,332 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:21:10,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:21:10,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:21:10,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:21:10,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:21:10,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:21:10,373 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:21:10,374 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:21:10,374 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:21:10,375 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:21:10,375 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:21:10,375 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:21:10,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:21:10,376 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:21:10,376 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:21:10,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:21:10,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:21:10,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:21:10,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:21:10,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:21:10,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:21:10,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:21:10,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:21:10,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:21:10,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:10,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:21:10,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:21:10,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:21:10,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:21:10,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:21:10,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 236a73c15e935747b9f2e95e881c26c921eba2f2ad7a2b23cf05552665b9f683 [2021-12-15 12:21:10,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:21:10,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:21:10,650 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:21:10,651 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:21:10,651 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:21:10,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/sigma.i [2021-12-15 12:21:10,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16446eb2/a1a67f5849a14d23a6d735ef938548e3/FLAGd2839016f [2021-12-15 12:21:11,058 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:21:11,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/sigma.i [2021-12-15 12:21:11,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16446eb2/a1a67f5849a14d23a6d735ef938548e3/FLAGd2839016f [2021-12-15 12:21:11,455 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f16446eb2/a1a67f5849a14d23a6d735ef938548e3 [2021-12-15 12:21:11,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:21:11,459 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:21:11,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:11,462 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:21:11,464 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:21:11,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:11,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48428502 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11, skipping insertion in model container [2021-12-15 12:21:11,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:11,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:21:11,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:21:11,844 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/pthread/sigma.i[55285,55298] [2021-12-15 12:21:11,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:11,860 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 12:21:11,865 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:21:11,878 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/pthread/sigma.i[55285,55298] [2021-12-15 12:21:11,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:11,889 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:21:11,912 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/pthread/sigma.i[55285,55298] [2021-12-15 12:21:11,925 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:11,989 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:21:11,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11 WrapperNode [2021-12-15 12:21:11,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:11,990 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:11,990 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:21:11,990 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:21:11,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,034 INFO L137 Inliner]: procedures = 326, calls = 23, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 89 [2021-12-15 12:21:12,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:12,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:21:12,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:21:12,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:21:12,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,089 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:21:12,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:21:12,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:21:12,092 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:21:12,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (1/1) ... [2021-12-15 12:21:12,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:12,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:21:12,121 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 12:21:12,124 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 12:21:12,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:21:12,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 12:21:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-12-15 12:21:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-12-15 12:21:12,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:21:12,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:21:12,150 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-12-15 12:21:12,272 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:21:12,284 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:21:12,508 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:21:12,514 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:21:12,515 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 12:21:12,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:12 BoogieIcfgContainer [2021-12-15 12:21:12,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:21:12,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:21:12,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:21:12,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:21:12,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:21:11" (1/3) ... [2021-12-15 12:21:12,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a36089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:12, skipping insertion in model container [2021-12-15 12:21:12,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:11" (2/3) ... [2021-12-15 12:21:12,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a36089 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:12, skipping insertion in model container [2021-12-15 12:21:12,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:12" (3/3) ... [2021-12-15 12:21:12,523 INFO L111 eAbstractionObserver]: Analyzing ICFG sigma.i [2021-12-15 12:21:12,527 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:21:12,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:21:12,528 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:21:12,529 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:21:12,557 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,557 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,557 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,557 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,558 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,558 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,559 WARN L322 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:12,560 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.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.ThreadInstanceAdder.connectThreadInstances(ThreadInstanceAdder.java:116) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.IcfgPetrifier.(IcfgPetrifier.java:136) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.petrify(TraceAbstractionStarter.java:514) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) 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 12:21:12,563 INFO L158 Benchmark]: Toolchain (without parser) took 1103.04ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 43.2MB in the beginning and 45.2MB in the end (delta: -2.0MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,563 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:21:12,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 528.43ms. Allocated memory is still 58.7MB. Free memory was 43.0MB in the beginning and 38.5MB in the end (delta: 4.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.68ms. Allocated memory is still 58.7MB. Free memory was 38.5MB in the beginning and 35.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,565 INFO L158 Benchmark]: Boogie Preprocessor took 46.84ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 34.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,565 INFO L158 Benchmark]: RCFGBuilder took 425.47ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 33.9MB in the beginning and 49.0MB in the end (delta: -15.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,566 INFO L158 Benchmark]: TraceAbstraction took 43.81ms. Allocated memory is still 75.5MB. Free memory was 48.6MB in the beginning and 45.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:21:12,568 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 30.7MB in the beginning and 30.7MB in the end (delta: 31.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 528.43ms. Allocated memory is still 58.7MB. Free memory was 43.0MB in the beginning and 38.5MB in the end (delta: 4.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.68ms. Allocated memory is still 58.7MB. Free memory was 38.5MB in the beginning and 35.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.84ms. Allocated memory is still 58.7MB. Free memory was 35.9MB in the beginning and 34.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.47ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 33.9MB in the beginning and 49.0MB in the end (delta: -15.1MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * TraceAbstraction took 43.81ms. Allocated memory is still 75.5MB. Free memory was 48.6MB in the beginning and 45.2MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. 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 12:21:12,602 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