./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-atomic/dekker.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-atomic/dekker.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 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:21:27,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:21:27,118 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:21:27,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:21:27,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:21:27,156 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:21:27,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:21:27,159 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:21:27,160 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:21:27,168 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:21:27,168 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:21:27,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:21:27,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:21:27,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:21:27,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:21:27,175 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:21:27,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:21:27,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:21:27,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:21:27,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:21:27,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:21:27,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:21:27,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:21:27,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:21:27,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:21:27,189 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:21:27,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:21:27,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:21:27,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:21:27,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:21:27,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:21:27,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:21:27,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:21:27,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:21:27,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:21:27,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:21:27,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:21:27,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:21:27,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:21:27,196 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:21:27,196 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:21:27,197 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 12:21:27,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:21:27,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:21:27,217 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:21:27,217 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:21:27,218 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:21:27,218 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:21:27,218 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:21:27,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:21:27,219 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:21:27,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:21:27,219 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:21:27,220 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:21:27,221 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:21:27,221 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:21:27,221 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:21:27,221 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:21:27,221 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:21:27,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:27,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:21:27,222 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:21:27,223 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:21:27,223 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:21:27,223 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f [2021-12-15 12:21:27,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:21:27,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:21:27,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:21:27,413 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:21:27,413 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:21:27,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker.i [2021-12-15 12:21:27,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59554cb02/8dc6f3006f1a40eba2d82f460848b806/FLAGaa12cb54f [2021-12-15 12:21:27,810 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:21:27,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2021-12-15 12:21:27,818 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59554cb02/8dc6f3006f1a40eba2d82f460848b806/FLAGaa12cb54f [2021-12-15 12:21:28,190 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59554cb02/8dc6f3006f1a40eba2d82f460848b806 [2021-12-15 12:21:28,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:21:28,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:21:28,195 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:28,195 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:21:28,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:21:28,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a71078e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28, skipping insertion in model container [2021-12-15 12:21:28,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:21:28,234 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:21:28,367 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-15 12:21:28,456 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-atomic/dekker.i[31403,31416] [2021-12-15 12:21:28,463 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-atomic/dekker.i[32483,32496] [2021-12-15 12:21:28,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:28,478 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:21:28,488 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-15 12:21:28,503 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-atomic/dekker.i[31403,31416] [2021-12-15 12:21:28,505 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-atomic/dekker.i[32483,32496] [2021-12-15 12:21:28,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:28,531 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:21:28,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28 WrapperNode [2021-12-15 12:21:28,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:28,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:28,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:21:28,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:21:28,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,563 INFO L137 Inliner]: procedures = 172, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2021-12-15 12:21:28,563 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:28,564 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:21:28,564 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:21:28,564 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:21:28,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,574 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:21:28,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:21:28,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:21:28,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:21:28,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (1/1) ... [2021-12-15 12:21:28,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:28,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:21:28,613 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 12:21:28,614 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 12:21:28,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 12:21:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-15 12:21:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-15 12:21:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-15 12:21:28,646 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-15 12:21:28,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 12:21:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:21:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:21:28,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:21:28,649 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 12:21:28,739 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:21:28,741 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:21:28,894 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:21:28,903 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:21:28,904 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 12:21:28,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:28 BoogieIcfgContainer [2021-12-15 12:21:28,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:21:28,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:21:28,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:21:28,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:21:28,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:21:28" (1/3) ... [2021-12-15 12:21:28,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9fc541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:28, skipping insertion in model container [2021-12-15 12:21:28,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:28" (2/3) ... [2021-12-15 12:21:28,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b9fc541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:28, skipping insertion in model container [2021-12-15 12:21:28,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:28" (3/3) ... [2021-12-15 12:21:28,914 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-12-15 12:21:28,921 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:21:28,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:21:28,922 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 12:21:28,922 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:21:28,958 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,958 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,958 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,959 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,959 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,959 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,960 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,961 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,962 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,962 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,963 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,963 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,963 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,964 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,965 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,966 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,966 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,966 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,966 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,967 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,967 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,968 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,968 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,969 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,969 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,970 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,971 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,972 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,972 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,972 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,972 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,972 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,975 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,975 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,975 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,976 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,976 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,977 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,977 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,978 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,978 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,978 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,978 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:28,979 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 12:21:28,991 INFO L158 Benchmark]: Toolchain (without parser) took 791.68ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 72.5MB in the beginning and 84.4MB in the end (delta: -11.8MB). Peak memory consumption was 25.9MB. Max. memory is 16.1GB. [2021-12-15 12:21:28,992 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 100.7MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:21:28,993 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.76ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 72.2MB in the beginning and 106.8MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 12:21:28,994 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.28ms. Allocated memory is still 140.5MB. Free memory was 106.8MB in the beginning and 104.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:28,995 INFO L158 Benchmark]: Boogie Preprocessor took 21.79ms. Allocated memory is still 140.5MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:21:28,995 INFO L158 Benchmark]: RCFGBuilder took 319.91ms. Allocated memory is still 140.5MB. Free memory was 103.6MB in the beginning and 91.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 12:21:28,996 INFO L158 Benchmark]: TraceAbstraction took 77.49ms. Allocated memory is still 140.5MB. Free memory was 90.6MB in the beginning and 84.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:21:29,003 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 100.7MB. Free memory is still 58.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.76ms. Allocated memory was 100.7MB in the beginning and 140.5MB in the end (delta: 39.8MB). Free memory was 72.2MB in the beginning and 106.8MB in the end (delta: -34.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.28ms. Allocated memory is still 140.5MB. Free memory was 106.8MB in the beginning and 104.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.79ms. Allocated memory is still 140.5MB. Free memory was 104.8MB in the beginning and 103.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.91ms. Allocated memory is still 140.5MB. Free memory was 103.6MB in the beginning and 91.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 77.49ms. Allocated memory is still 140.5MB. Free memory was 90.6MB in the beginning and 84.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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 12:21:29,046 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-atomic/dekker.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 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 12:21:30,621 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 12:21:30,623 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 12:21:30,653 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 12:21:30,653 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 12:21:30,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 12:21:30,657 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 12:21:30,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 12:21:30,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 12:21:30,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 12:21:30,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 12:21:30,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 12:21:30,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 12:21:30,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 12:21:30,671 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 12:21:30,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 12:21:30,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 12:21:30,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 12:21:30,678 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 12:21:30,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 12:21:30,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 12:21:30,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 12:21:30,685 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 12:21:30,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 12:21:30,691 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 12:21:30,692 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 12:21:30,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 12:21:30,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 12:21:30,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 12:21:30,694 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 12:21:30,694 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 12:21:30,695 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 12:21:30,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 12:21:30,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 12:21:30,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 12:21:30,697 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 12:21:30,698 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 12:21:30,698 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 12:21:30,698 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 12:21:30,699 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 12:21:30,700 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 12:21:30,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 12:21:30,732 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 12:21:30,732 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 12:21:30,733 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 12:21:30,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 12:21:30,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 12:21:30,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 12:21:30,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 12:21:30,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 12:21:30,735 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 12:21:30,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 12:21:30,736 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 12:21:30,736 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 12:21:30,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 12:21:30,737 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 12:21:30,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 12:21:30,738 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 12:21:30,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 12:21:30,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 12:21:30,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 12:21:30,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 12:21:30,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:30,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 12:21:30,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 12:21:30,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 12:21:30,747 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 12:21:30,747 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 12:21:30,748 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 12:21:30,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 12:21:30,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 12:21:30,748 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 12:21:30,748 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 12:21:30,749 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b6ef65da122b5f043dc58aac5c98a5417eca7613b00ec724ef2626b8a50d79f [2021-12-15 12:21:31,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 12:21:31,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 12:21:31,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 12:21:31,037 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 12:21:31,038 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 12:21:31,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-atomic/dekker.i [2021-12-15 12:21:31,095 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83831fec0/93f85b291a9c4988b7fc0d14b0da649f/FLAGf042baf22 [2021-12-15 12:21:31,445 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 12:21:31,446 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-atomic/dekker.i [2021-12-15 12:21:31,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83831fec0/93f85b291a9c4988b7fc0d14b0da649f/FLAGf042baf22 [2021-12-15 12:21:31,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83831fec0/93f85b291a9c4988b7fc0d14b0da649f [2021-12-15 12:21:31,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 12:21:31,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 12:21:31,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:31,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 12:21:31,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 12:21:31,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:31" (1/1) ... [2021-12-15 12:21:31,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21dd4155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:31, skipping insertion in model container [2021-12-15 12:21:31,860 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 12:21:31" (1/1) ... [2021-12-15 12:21:31,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 12:21:31,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 12:21:32,004 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-15 12:21:32,135 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-atomic/dekker.i[31403,31416] [2021-12-15 12:21:32,143 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-atomic/dekker.i[32483,32496] [2021-12-15 12:21:32,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:32,169 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 12:21:32,192 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-12-15 12:21:32,206 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-atomic/dekker.i[31403,31416] [2021-12-15 12:21:32,217 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-atomic/dekker.i[32483,32496] [2021-12-15 12:21:32,223 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 12:21:32,256 INFO L208 MainTranslator]: Completed translation [2021-12-15 12:21:32,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32 WrapperNode [2021-12-15 12:21:32,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 12:21:32,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:32,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 12:21:32,258 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 12:21:32,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,288 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,306 INFO L137 Inliner]: procedures = 175, calls = 60, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-12-15 12:21:32,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 12:21:32,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 12:21:32,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 12:21:32,309 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 12:21:32,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 12:21:32,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 12:21:32,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 12:21:32,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 12:21:32,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (1/1) ... [2021-12-15 12:21:32,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 12:21:32,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 12:21:32,386 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 12:21:32,404 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 12:21:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 12:21:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-12-15 12:21:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-12-15 12:21:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-12-15 12:21:32,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-12-15 12:21:32,419 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 12:21:32,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 12:21:32,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 12:21:32,421 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 12:21:32,526 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 12:21:32,527 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 12:21:32,670 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 12:21:32,674 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 12:21:32,674 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 12:21:32,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:32 BoogieIcfgContainer [2021-12-15 12:21:32,676 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 12:21:32,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 12:21:32,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 12:21:32,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 12:21:32,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 12:21:31" (1/3) ... [2021-12-15 12:21:32,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9fc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:32, skipping insertion in model container [2021-12-15 12:21:32,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 12:21:32" (2/3) ... [2021-12-15 12:21:32,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dd9fc19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 12:21:32, skipping insertion in model container [2021-12-15 12:21:32,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 12:21:32" (3/3) ... [2021-12-15 12:21:32,681 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-12-15 12:21:32,684 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-12-15 12:21:32,684 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 12:21:32,684 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-15 12:21:32,684 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-12-15 12:21:32,704 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,704 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,704 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,705 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,706 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,707 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,708 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,709 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,710 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,710 WARN L322 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,710 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,710 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,711 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,712 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,713 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,714 WARN L322 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-12-15 12:21:32,715 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 12:21:32,717 INFO L158 Benchmark]: Toolchain (without parser) took 863.57ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.3MB in the beginning and 31.9MB in the end (delta: -1.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,717 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 12:21:32,718 INFO L158 Benchmark]: CACSL2BoogieTranslator took 401.85ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 40.7MB in the end (delta: -10.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,718 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.73ms. Allocated memory is still 67.1MB. Free memory was 40.5MB in the beginning and 38.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,719 INFO L158 Benchmark]: Boogie Preprocessor took 49.70ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 36.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,719 INFO L158 Benchmark]: RCFGBuilder took 317.43ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 38.6MB in the end (delta: -1.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,726 INFO L158 Benchmark]: TraceAbstraction took 39.13ms. Allocated memory is still 67.1MB. Free memory was 38.1MB in the beginning and 31.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 12:21:32,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 54.5MB. Free memory is still 36.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 401.85ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.1MB in the beginning and 40.7MB in the end (delta: -10.6MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.73ms. Allocated memory is still 67.1MB. Free memory was 40.5MB in the beginning and 38.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.70ms. Allocated memory is still 67.1MB. Free memory was 38.6MB in the beginning and 36.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 317.43ms. Allocated memory is still 67.1MB. Free memory was 36.8MB in the beginning and 38.6MB in the end (delta: -1.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * TraceAbstraction took 39.13ms. Allocated memory is still 67.1MB. Free memory was 38.1MB in the beginning and 31.9MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. 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 12:21:32,760 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable