./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe032_tso.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-wmm/safe032_tso.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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:25:21,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:25:21,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:25:21,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:25:21,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:25:21,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:25:21,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:25:21,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:25:21,826 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:25:21,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:25:21,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:25:21,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:25:21,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:25:21,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:25:21,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:25:21,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:25:21,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:25:21,845 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:25:21,846 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:25:21,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:25:21,847 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:25:21,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:25:21,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:25:21,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:25:21,851 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:25:21,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:25:21,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:25:21,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:25:21,852 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:25:21,853 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:25:21,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:25:21,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:25:21,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:25:21,854 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:25:21,855 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:25:21,855 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:25:21,856 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:25:21,856 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:25:21,856 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:25:21,857 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:25:21,859 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:25:21,859 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:25:21,880 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:25:21,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:25:21,880 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:25:21,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:25:21,881 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:25:21,881 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:25:21,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:25:21,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:25:21,882 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:25:21,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:25:21,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:25:21,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:25:21,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:21,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:25:21,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:25:21,886 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:25:21,886 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:25:21,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:25:21,886 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:25:21,886 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2021-12-15 12:25:22,105 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:25:22,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:25:22,125 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:25:22,126 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:25:22,127 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:25:22,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2021-12-15 12:25:22,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ff6f6ee/f812477ade994762911ac93b870ff894/FLAG901333378 [2021-12-15 12:25:22,557 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:25:22,563 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2021-12-15 12:25:22,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ff6f6ee/f812477ade994762911ac93b870ff894/FLAG901333378 [2021-12-15 12:25:22,943 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32ff6f6ee/f812477ade994762911ac93b870ff894 [2021-12-15 12:25:22,945 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:25:22,946 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:25:22,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:22,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:25:22,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:25:22,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:22" (1/1) ... [2021-12-15 12:25:22,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5563db1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:22, skipping insertion in model container [2021-12-15 12:25:22,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:22" (1/1) ... [2021-12-15 12:25:22,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:25:23,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:25:23,161 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-wmm/safe032_tso.i[945,958] [2021-12-15 12:25:23,265 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:23,270 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:25:23,277 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-wmm/safe032_tso.i[945,958] [2021-12-15 12:25:23,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:23,345 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:25:23,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23 WrapperNode [2021-12-15 12:25:23,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:23,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:23,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:25:23,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:25:23,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,376 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,389 INFO L137 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2021-12-15 12:25:23,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:23,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:25:23,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:25:23,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:25:23,395 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,405 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:25:23,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:25:23,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:25:23,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:25:23,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (1/1) ... [2021-12-15 12:25:23,413 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:23,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:25:23,432 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 12:25:23,459 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 12:25:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:25:23,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:25:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:25:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:25:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:25:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:25:23,464 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:25:23,464 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:25:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:25:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-15 12:25:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-15 12:25:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:25:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:25:23,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:25:23,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:25:23,466 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 12:25:23,568 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:25:23,569 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:25:23,707 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:25:23,712 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:25:23,712 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:25:23,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:23 BoogieIcfgContainer [2021-12-15 12:25:23,714 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:25:23,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:25:23,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:25:23,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:25:23,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:25:22" (1/3) ... [2021-12-15 12:25:23,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5516554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:23, skipping insertion in model container [2021-12-15 12:25:23,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:23" (2/3) ... [2021-12-15 12:25:23,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5516554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:23, skipping insertion in model container [2021-12-15 12:25:23,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:23" (3/3) ... [2021-12-15 12:25:23,723 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2021-12-15 12:25:23,726 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:25:23,726 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:25:23,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:25:23,727 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:25:23,752 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,752 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,752 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,752 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,752 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,753 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,754 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,755 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,756 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:23,757 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 12:25:23,760 INFO L158 Benchmark]: Toolchain (without parser) took 812.94ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 43.9MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 12:25:23,760 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:23,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 398.84ms. Allocated memory is still 98.6MB. Free memory was 59.6MB in the beginning and 64.5MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:25:23,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.05ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:25:23,762 INFO L158 Benchmark]: Boogie Preprocessor took 14.98ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:23,762 INFO L158 Benchmark]: RCFGBuilder took 308.06ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:25:23,762 INFO L158 Benchmark]: TraceAbstraction took 43.87ms. Allocated memory is still 98.6MB. Free memory was 48.4MB in the beginning and 43.9MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:25:23,764 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 98.6MB. Free memory was 78.1MB in the beginning and 78.0MB in the end (delta: 46.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 398.84ms. Allocated memory is still 98.6MB. Free memory was 59.6MB in the beginning and 64.5MB in the end (delta: -4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.05ms. Allocated memory is still 98.6MB. Free memory was 64.5MB in the beginning and 62.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 14.98ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 61.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 308.06ms. Allocated memory is still 98.6MB. Free memory was 61.0MB in the beginning and 48.9MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 43.87ms. Allocated memory is still 98.6MB. Free memory was 48.4MB in the beginning and 43.9MB in the end (delta: 4.5MB). 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 12:25:23,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-wmm/safe032_tso.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 ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:25:25,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:25:25,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:25:25,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:25:25,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:25:25,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:25:25,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:25:25,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:25:25,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:25:25,496 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:25:25,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:25:25,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:25:25,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:25:25,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:25:25,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:25:25,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:25:25,509 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:25:25,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:25:25,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:25:25,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:25:25,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:25:25,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:25:25,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:25:25,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:25:25,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:25:25,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:25:25,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:25:25,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:25:25,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:25:25,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:25:25,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:25:25,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:25:25,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:25:25,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:25:25,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:25:25,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:25:25,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:25:25,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:25:25,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:25:25,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:25:25,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:25:25,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:25:25,564 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:25:25,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:25:25,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:25:25,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:25:25,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:25:25,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:25:25,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:25:25,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:25:25,567 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:25:25,567 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:25:25,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:25:25,568 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:25:25,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:25:25,569 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:25:25,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:25:25,570 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:25:25,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:25:25,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:25:25,570 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:25:25,570 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:25:25,571 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:25,571 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:25:25,571 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:25:25,571 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:25:25,571 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:25:25,571 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:25:25,572 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:25:25,572 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:25:25,572 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:25:25,572 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:25:25,572 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:25:25,573 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ffff09405c16ea86880fae0b9b6268edfa5ef4b2d03cee31a9e4f2e1ac044811 [2021-12-15 12:25:25,815 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:25:25,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:25:25,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:25:25,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:25:25,839 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:25:25,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe032_tso.i [2021-12-15 12:25:25,895 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e1167fa/0c57589b1a5742d681c1b826f3afe378/FLAG0aac70d0c [2021-12-15 12:25:26,333 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:25:26,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe032_tso.i [2021-12-15 12:25:26,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e1167fa/0c57589b1a5742d681c1b826f3afe378/FLAG0aac70d0c [2021-12-15 12:25:26,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3e1167fa/0c57589b1a5742d681c1b826f3afe378 [2021-12-15 12:25:26,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:25:26,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:25:26,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:26,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:25:26,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:25:26,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:26" (1/1) ... [2021-12-15 12:25:26,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11ca2c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:26, skipping insertion in model container [2021-12-15 12:25:26,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:25:26" (1/1) ... [2021-12-15 12:25:26,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:25:26,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:25:26,842 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-wmm/safe032_tso.i[945,958] [2021-12-15 12:25:27,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:27,024 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:25:27,040 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-wmm/safe032_tso.i[945,958] [2021-12-15 12:25:27,069 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:25:27,104 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:25:27,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27 WrapperNode [2021-12-15 12:25:27,105 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:25:27,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:27,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:25:27,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:25:27,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,157 INFO L137 Inliner]: procedures = 179, calls = 57, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-12-15 12:25:27,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:25:27,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:25:27,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:25:27,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:25:27,165 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:25:27,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:25:27,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:25:27,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:25:27,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (1/1) ... [2021-12-15 12:25:27,212 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:25:27,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:25:27,228 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 12:25:27,253 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 12:25:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:25:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:25:27,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:25:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:25:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:25:27,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:25:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-12-15 12:25:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-12-15 12:25:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-12-15 12:25:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-12-15 12:25:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-12-15 12:25:27,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-12-15 12:25:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:25:27,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:25:27,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:25:27,278 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 12:25:27,425 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:25:27,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:25:27,592 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:25:27,597 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:25:27,598 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-15 12:25:27,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:27 BoogieIcfgContainer [2021-12-15 12:25:27,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:25:27,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:25:27,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:25:27,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:25:27,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:25:26" (1/3) ... [2021-12-15 12:25:27,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d536e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:27, skipping insertion in model container [2021-12-15 12:25:27,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:25:27" (2/3) ... [2021-12-15 12:25:27,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d536e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:25:27, skipping insertion in model container [2021-12-15 12:25:27,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:25:27" (3/3) ... [2021-12-15 12:25:27,605 INFO L111 eAbstractionObserver]: Analyzing ICFG safe032_tso.i [2021-12-15 12:25:27,620 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:25:27,620 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:25:27,620 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 12:25:27,620 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:25:27,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,650 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,651 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,651 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,651 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,652 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,653 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,653 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,653 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,654 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,655 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,656 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,657 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:25:27,658 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 12:25:27,663 INFO L158 Benchmark]: Toolchain (without parser) took 962.48ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.5MB in the beginning and 28.8MB in the end (delta: -2.2MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-12-15 12:25:27,664 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:27,665 INFO L158 Benchmark]: CACSL2BoogieTranslator took 403.96ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.4MB in the beginning and 34.4MB in the end (delta: -8.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2021-12-15 12:25:27,665 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.32ms. Allocated memory is still 60.8MB. Free memory was 34.2MB in the beginning and 32.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:25:27,666 INFO L158 Benchmark]: Boogie Preprocessor took 41.14ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 30.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:25:27,666 INFO L158 Benchmark]: RCFGBuilder took 399.49ms. Allocated memory is still 60.8MB. Free memory was 30.6MB in the beginning and 33.7MB in the end (delta: -3.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-12-15 12:25:27,667 INFO L158 Benchmark]: TraceAbstraction took 60.59ms. Allocated memory is still 60.8MB. Free memory was 33.3MB in the beginning and 28.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 12:25:27,673 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 50.3MB. Free memory was 31.9MB in the beginning and 31.9MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 403.96ms. Allocated memory was 50.3MB in the beginning and 60.8MB in the end (delta: 10.5MB). Free memory was 26.4MB in the beginning and 34.4MB in the end (delta: -8.1MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.32ms. Allocated memory is still 60.8MB. Free memory was 34.2MB in the beginning and 32.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.14ms. Allocated memory is still 60.8MB. Free memory was 32.2MB in the beginning and 30.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 399.49ms. Allocated memory is still 60.8MB. Free memory was 30.6MB in the beginning and 33.7MB in the end (delta: -3.2MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * TraceAbstraction took 60.59ms. Allocated memory is still 60.8MB. Free memory was 33.3MB in the beginning and 28.8MB in the end (delta: 4.5MB). 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 12:25:27,705 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