./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.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/ddv-machzwd/ddv_machzwd_outb.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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:57,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:57,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:57,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:57,281 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:57,284 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:57,285 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:57,288 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:57,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:57,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:57,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:57,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:57,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:57,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:57,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:57,302 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:57,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:57,305 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:57,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:57,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:57,320 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:57,321 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:57,322 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:57,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:57,324 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:57,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:57,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:57,325 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:57,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:57,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:57,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:57,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:57,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:57,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:57,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:57,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:57,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:57,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:57,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:57,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:57,332 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:57,332 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:43:57,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:57,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:57,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:57,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:57,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:57,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:57,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:57,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:57,356 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:57,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:57,357 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:57,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:57,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:57,359 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:57,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:57,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:57,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:57,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:57,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:57,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:57,360 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:57,361 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:57,361 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2021-12-15 10:43:57,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:57,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:57,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:57,553 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:57,553 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:57,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-12-15 10:43:57,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76d4e181/fd0461fb55274fd8a7337605a8928d45/FLAGa94866439 [2021-12-15 10:43:58,061 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:58,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-12-15 10:43:58,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76d4e181/fd0461fb55274fd8a7337605a8928d45/FLAGa94866439 [2021-12-15 10:43:58,362 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f76d4e181/fd0461fb55274fd8a7337605a8928d45 [2021-12-15 10:43:58,364 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:58,365 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:58,367 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:58,367 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:58,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:58,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa115e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58, skipping insertion in model container [2021-12-15 10:43:58,371 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:58,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:58,619 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-12-15 10:43:59,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:59,299 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:59,309 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-12-15 10:43:59,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:59,538 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:59,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59 WrapperNode [2021-12-15 10:43:59,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:59,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:59,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:59,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:59,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,594 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,664 INFO L137 Inliner]: procedures = 474, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 1024 [2021-12-15 10:43:59,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:59,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:59,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:59,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:59,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,738 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:59,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:59,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:59,746 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:59,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (1/1) ... [2021-12-15 10:43:59,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:59,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:59,814 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 10:43:59,872 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 10:43:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2021-12-15 10:43:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2021-12-15 10:43:59,884 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 10:43:59,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2021-12-15 10:43:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 10:43:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 10:43:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:43:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-15 10:43:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-15 10:43:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 10:43:59,885 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2021-12-15 10:43:59,885 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2021-12-15 10:43:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2021-12-15 10:43:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-15 10:43:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:43:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:59,886 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2021-12-15 10:43:59,886 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2021-12-15 10:43:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:43:59,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:43:59,887 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2021-12-15 10:43:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2021-12-15 10:43:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-15 10:43:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-15 10:43:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2021-12-15 10:43:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2021-12-15 10:43:59,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:59,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2021-12-15 10:43:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2021-12-15 10:43:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 10:43:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 10:43:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 10:43:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-15 10:43:59,889 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-15 10:43:59,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:43:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-15 10:43:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-15 10:43:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-15 10:43:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-15 10:43:59,890 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-15 10:43:59,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-15 10:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2021-12-15 10:43:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2021-12-15 10:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-15 10:43:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-15 10:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 10:43:59,891 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 10:43:59,891 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-15 10:43:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-15 10:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2021-12-15 10:43:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2021-12-15 10:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2021-12-15 10:43:59,892 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2021-12-15 10:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:43:59,892 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2021-12-15 10:43:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2021-12-15 10:43:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2021-12-15 10:43:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2021-12-15 10:43:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-12-15 10:43:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-12-15 10:43:59,893 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-15 10:43:59,893 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-15 10:43:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-15 10:43:59,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-15 10:43:59,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:44:00,116 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:44:00,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:44:01,233 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:44:01,244 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:44:01,244 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:44:01,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:01 BoogieIcfgContainer [2021-12-15 10:44:01,247 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:44:01,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:44:01,248 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:44:01,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:44:01,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:43:58" (1/3) ... [2021-12-15 10:44:01,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:01, skipping insertion in model container [2021-12-15 10:44:01,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:59" (2/3) ... [2021-12-15 10:44:01,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcfc15c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:01, skipping insertion in model container [2021-12-15 10:44:01,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:01" (3/3) ... [2021-12-15 10:44:01,256 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2021-12-15 10:44:01,262 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:44:01,263 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:44:01,306 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:44:01,317 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:44:01,318 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:44:01,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 247 states have (on average 1.360323886639676) internal successors, (336), 253 states have internal predecessors, (336), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2021-12-15 10:44:01,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 10:44:01,340 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:44:01,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:44:01,341 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outbErr0ASSERT_VIOLATIONERROR_FUNCTION === [outbErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:44:01,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:44:01,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1689417019, now seen corresponding path program 1 times [2021-12-15 10:44:01,369 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:44:01,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27089317] [2021-12-15 10:44:01,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:44:01,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:44:01,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:44:01,456 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:44:01,463 INFO L158 Benchmark]: Toolchain (without parser) took 3096.19ms. Allocated memory was 107.0MB in the beginning and 224.4MB in the end (delta: 117.4MB). Free memory was 71.4MB in the beginning and 174.3MB in the end (delta: -102.9MB). Peak memory consumption was 104.5MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,463 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:44:01,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1172.16ms. Allocated memory was 107.0MB in the beginning and 169.9MB in the end (delta: 62.9MB). Free memory was 71.2MB in the beginning and 122.5MB in the end (delta: -51.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 124.59ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 113.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,468 INFO L158 Benchmark]: Boogie Preprocessor took 80.45ms. Allocated memory is still 169.9MB. Free memory was 113.3MB in the beginning and 106.2MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,468 INFO L158 Benchmark]: RCFGBuilder took 1501.15ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 106.2MB in the beginning and 94.7MB in the end (delta: 11.4MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,469 INFO L158 Benchmark]: TraceAbstraction took 212.97ms. Allocated memory is still 224.4MB. Free memory was 94.7MB in the beginning and 174.3MB in the end (delta: -79.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:44:01,473 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 81.8MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1172.16ms. Allocated memory was 107.0MB in the beginning and 169.9MB in the end (delta: 62.9MB). Free memory was 71.2MB in the beginning and 122.5MB in the end (delta: -51.3MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 124.59ms. Allocated memory is still 169.9MB. Free memory was 122.5MB in the beginning and 113.3MB in the end (delta: 9.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.45ms. Allocated memory is still 169.9MB. Free memory was 113.3MB in the beginning and 106.2MB in the end (delta: 7.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1501.15ms. Allocated memory was 169.9MB in the beginning and 224.4MB in the end (delta: 54.5MB). Free memory was 106.2MB in the beginning and 94.7MB in the end (delta: 11.4MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * TraceAbstraction took 212.97ms. Allocated memory is still 224.4MB. Free memory was 94.7MB in the beginning and 174.3MB in the end (delta: -79.6MB). Peak memory consumption was 10.5MB. 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 10:44:01,520 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/ddv-machzwd/ddv_machzwd_outb.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 b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:44:03,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:44:03,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:44:03,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:44:03,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:44:03,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:44:03,141 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:44:03,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:44:03,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:44:03,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:44:03,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:44:03,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:44:03,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:44:03,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:44:03,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:44:03,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:44:03,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:44:03,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:44:03,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:44:03,166 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:44:03,167 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:44:03,168 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:44:03,169 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:44:03,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:44:03,174 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:44:03,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:44:03,175 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:44:03,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:44:03,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:44:03,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:44:03,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:44:03,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:44:03,179 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:44:03,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:44:03,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:44:03,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:44:03,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:44:03,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:44:03,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:44:03,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:44:03,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:44:03,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:44:03,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:44:03,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:44:03,221 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:44:03,221 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:44:03,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:44:03,222 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:44:03,222 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:44:03,222 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:44:03,222 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:44:03,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:44:03,223 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:44:03,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:44:03,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:44:03,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:44:03,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:44:03,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:44:03,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:44:03,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:44:03,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:44:03,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:44:03,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9ba053a0d2bb5cff65ef20f502acdb8ce89a9e82653cf0711701cf2b8f86a02 [2021-12-15 10:44:03,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:44:03,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:44:03,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:44:03,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:44:03,512 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:44:03,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-12-15 10:44:03,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324c4e109/b0aa0bb347d746898afd43fd9bc16039/FLAG76e047ef6 [2021-12-15 10:44:04,038 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:44:04,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_outb.i [2021-12-15 10:44:04,064 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324c4e109/b0aa0bb347d746898afd43fd9bc16039/FLAG76e047ef6 [2021-12-15 10:44:04,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/324c4e109/b0aa0bb347d746898afd43fd9bc16039 [2021-12-15 10:44:04,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:44:04,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:44:04,307 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:44:04,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:44:04,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:44:04,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:04" (1/1) ... [2021-12-15 10:44:04,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b03e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:04, skipping insertion in model container [2021-12-15 10:44:04,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:04" (1/1) ... [2021-12-15 10:44:04,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:44:04,464 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:44:04,714 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-12-15 10:44:05,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:05,973 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 10:44:06,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:44:06,035 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-12-15 10:44:06,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:06,282 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:44:06,304 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/ddv-machzwd/ddv_machzwd_outb.i[453,466] [2021-12-15 10:44:06,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:06,699 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:44:06,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06 WrapperNode [2021-12-15 10:44:06,712 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:44:06,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:44:06,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:44:06,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:44:06,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:06,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:06,914 INFO L137 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 981 [2021-12-15 10:44:06,927 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:44:06,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:44:06,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:44:06,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:44:06,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:06,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:06,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:06,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:07,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:07,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:07,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:07,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:44:07,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:44:07,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:44:07,072 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:44:07,072 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (1/1) ... [2021-12-15 10:44:07,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:44:07,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:44:07,137 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 10:44:07,166 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 10:44:07,177 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2021-12-15 10:44:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2021-12-15 10:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-12-15 10:44:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-12-15 10:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 10:44:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2021-12-15 10:44:07,178 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 10:44:07,178 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-15 10:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-15 10:44:07,179 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 10:44:07,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2021-12-15 10:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2021-12-15 10:44:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2021-12-15 10:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-15 10:44:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-15 10:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:44:07,180 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2021-12-15 10:44:07,180 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2021-12-15 10:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:44:07,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:44:07,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2021-12-15 10:44:07,182 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2021-12-15 10:44:07,182 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2021-12-15 10:44:07,182 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2021-12-15 10:44:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:44:07,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:44:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2021-12-15 10:44:07,183 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2021-12-15 10:44:07,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 10:44:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-15 10:44:07,184 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-15 10:44:07,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:44:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:44:07,185 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-15 10:44:07,185 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-15 10:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 10:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-15 10:44:07,186 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-15 10:44:07,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 10:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 10:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2021-12-15 10:44:07,187 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2021-12-15 10:44:07,187 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-15 10:44:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-15 10:44:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 10:44:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 10:44:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-15 10:44:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-15 10:44:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2021-12-15 10:44:07,188 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2021-12-15 10:44:07,188 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2021-12-15 10:44:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2021-12-15 10:44:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-12-15 10:44:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-12-15 10:44:07,189 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2021-12-15 10:44:07,189 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2021-12-15 10:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-15 10:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2021-12-15 10:44:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2021-12-15 10:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-15 10:44:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-15 10:44:07,190 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-12-15 10:44:07,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-12-15 10:44:07,422 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:44:07,423 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:44:10,833 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:44:10,839 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:44:10,839 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:44:10,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:10 BoogieIcfgContainer [2021-12-15 10:44:10,841 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:44:10,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:44:10,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:44:10,851 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:44:10,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:44:04" (1/3) ... [2021-12-15 10:44:10,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f954c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:10, skipping insertion in model container [2021-12-15 10:44:10,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:06" (2/3) ... [2021-12-15 10:44:10,852 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399f954c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:10, skipping insertion in model container [2021-12-15 10:44:10,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:10" (3/3) ... [2021-12-15 10:44:10,853 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_outb.i [2021-12-15 10:44:10,856 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:44:10,857 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:44:10,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:44:10,941 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 10:44:10,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:44:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 247 states have (on average 1.360323886639676) internal successors, (336), 253 states have internal predecessors, (336), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2021-12-15 10:44:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 10:44:10,981 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:44:10,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 10:44:10,982 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting outbErr0ASSERT_VIOLATIONERROR_FUNCTION === [outbErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:44:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:44:10,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1780362613, now seen corresponding path program 1 times [2021-12-15 10:44:11,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:44:11,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [297439284] [2021-12-15 10:44:11,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:44:11,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:44:11,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:44:11,021 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 10:44:11,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 10:44:11,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 10:44:11,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 10:44:11,433 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 10:44:11,438 INFO L158 Benchmark]: Toolchain (without parser) took 7135.16ms. Allocated memory was 60.8MB in the beginning and 159.4MB in the end (delta: 98.6MB). Free memory was 37.3MB in the beginning and 98.5MB in the end (delta: -61.2MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,438 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:44:11,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2405.69ms. Allocated memory was 60.8MB in the beginning and 109.1MB in the end (delta: 48.2MB). Free memory was 37.1MB in the beginning and 73.1MB in the end (delta: -36.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 214.70ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 64.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,439 INFO L158 Benchmark]: Boogie Preprocessor took 142.24ms. Allocated memory is still 109.1MB. Free memory was 64.7MB in the beginning and 56.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,440 INFO L158 Benchmark]: RCFGBuilder took 3770.12ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 56.3MB in the beginning and 31.2MB in the end (delta: 25.1MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,440 INFO L158 Benchmark]: TraceAbstraction took 587.66ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 98.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 10:44:11,442 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 42.5MB in the end (delta: 49.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2405.69ms. Allocated memory was 60.8MB in the beginning and 109.1MB in the end (delta: 48.2MB). Free memory was 37.1MB in the beginning and 73.1MB in the end (delta: -36.0MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 214.70ms. Allocated memory is still 109.1MB. Free memory was 73.1MB in the beginning and 64.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 142.24ms. Allocated memory is still 109.1MB. Free memory was 64.7MB in the beginning and 56.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3770.12ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 56.3MB in the beginning and 31.2MB in the end (delta: 25.1MB). Peak memory consumption was 52.6MB. Max. memory is 16.1GB. * TraceAbstraction took 587.66ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 98.5MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 10:44:11,470 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