./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.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_inw.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 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:43:56,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:43:56,134 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:43:56,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:43:56,183 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:43:56,184 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:43:56,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:43:56,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:43:56,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:43:56,189 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:43:56,189 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:43:56,190 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:43:56,190 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:43:56,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:43:56,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:43:56,193 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:43:56,193 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:43:56,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:43:56,195 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:43:56,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:43:56,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:43:56,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:43:56,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:43:56,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:43:56,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:43:56,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:43:56,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:43:56,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:43:56,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:43:56,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:43:56,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:43:56,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:43:56,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:43:56,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:43:56,206 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:43:56,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:43:56,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:43:56,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:43:56,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:43:56,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:43:56,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:43:56,220 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 10:43:56,246 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:43:56,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:43:56,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:43:56,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:43:56,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:43:56,248 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:43:56,248 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:43:56,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:43:56,249 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:43:56,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:43:56,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:43:56,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 10:43:56,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:43:56,251 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:43:56,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:43:56,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:43:56,252 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:43:56,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:43:56,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:56,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:43:56,253 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:43:56,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:43:56,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:43:56,254 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-12-15 10:43:56,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:43:56,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:43:56,461 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:43:56,462 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:43:56,463 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:43:56,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-12-15 10:43:56,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23caf5984/044cf1a5bc88467bb316e58fa05d1171/FLAGb6c4dfd3f [2021-12-15 10:43:57,010 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:43:57,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-12-15 10:43:57,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23caf5984/044cf1a5bc88467bb316e58fa05d1171/FLAGb6c4dfd3f [2021-12-15 10:43:57,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23caf5984/044cf1a5bc88467bb316e58fa05d1171 [2021-12-15 10:43:57,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:43:57,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:43:57,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:57,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:43:57,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:43:57,312 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:57" (1/1) ... [2021-12-15 10:43:57,313 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cceda3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:57, skipping insertion in model container [2021-12-15 10:43:57,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:43:57" (1/1) ... [2021-12-15 10:43:57,318 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:43:57,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:43:57,519 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_inw.i[452,465] [2021-12-15 10:43:58,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:58,173 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:43:58,181 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_inw.i[452,465] [2021-12-15 10:43:58,314 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:43:58,426 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:43:58,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58 WrapperNode [2021-12-15 10:43:58,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:43:58,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:58,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:43:58,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:43:58,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,586 INFO L137 Inliner]: procedures = 474, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 1022 [2021-12-15 10:43:58,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:43:58,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:43:58,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:43:58,587 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:43:58,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:43:58,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:43:58,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:43:58,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:43:58,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (1/1) ... [2021-12-15 10:43:58,691 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:43:58,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:43:58,750 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 10:43:58,792 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 10:43:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2021-12-15 10:43:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2021-12-15 10:43:58,823 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 10:43:58,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2021-12-15 10:43:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 10:43:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 10:43:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:43:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-15 10:43:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-15 10:43:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 10:43:58,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2021-12-15 10:43:58,824 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2021-12-15 10:43:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2021-12-15 10:43:58,825 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:43:58,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:43:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:43:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:43:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2021-12-15 10:43:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2021-12-15 10:43:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-15 10:43:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-15 10:43:58,826 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2021-12-15 10:43:58,826 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2021-12-15 10:43:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:43:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:43:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2021-12-15 10:43:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2021-12-15 10:43:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 10:43:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 10:43:58,827 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 10:43:58,827 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-15 10:43:58,828 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-15 10:43:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:43:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:43:58,828 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-15 10:43:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-15 10:43:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-15 10:43:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-15 10:43:58,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-15 10:43:58,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-15 10:43:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:43:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2021-12-15 10:43:58,830 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2021-12-15 10:43:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-15 10:43:58,830 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-15 10:43:58,830 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 10:43:58,830 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 10:43:58,831 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-15 10:43:58,831 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-15 10:43:58,832 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2021-12-15 10:43:58,832 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2021-12-15 10:43:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2021-12-15 10:43:58,833 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2021-12-15 10:43:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 10:43:58,833 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2021-12-15 10:43:58,833 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2021-12-15 10:43:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2021-12-15 10:43:58,834 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2021-12-15 10:43:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-12-15 10:43:58,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2021-12-15 10:43:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-15 10:43:58,834 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-15 10:43:58,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-15 10:43:58,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-15 10:43:58,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 10:43:59,113 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:43:59,115 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:44:00,562 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:44:00,569 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:44:00,570 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:44:00,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:00 BoogieIcfgContainer [2021-12-15 10:44:00,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:44:00,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:44:00,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:44:00,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:44:00,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:43:57" (1/3) ... [2021-12-15 10:44:00,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394dd134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:00, skipping insertion in model container [2021-12-15 10:44:00,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:43:58" (2/3) ... [2021-12-15 10:44:00,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394dd134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:00, skipping insertion in model container [2021-12-15 10:44:00,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:00" (3/3) ... [2021-12-15 10:44:00,580 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-12-15 10:44:00,584 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:44:00,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:44:00,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:44:00,628 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 10:44:00,628 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:44:00,648 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 10:44:00,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 10:44:00,652 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:44:00,653 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, 1, 1, 1] [2021-12-15 10:44:00,653 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:44:00,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:44:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash 566951616, now seen corresponding path program 1 times [2021-12-15 10:44:00,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 10:44:00,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022548743] [2021-12-15 10:44:00,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:44:00,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 10:44:00,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 10:44:00,742 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 10:44:00,747 INFO L158 Benchmark]: Toolchain (without parser) took 3444.71ms. Allocated memory was 92.3MB in the beginning and 172.0MB in the end (delta: 79.7MB). Free memory was 59.7MB in the beginning and 90.6MB in the end (delta: -30.9MB). Peak memory consumption was 49.8MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,748 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:44:00,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1119.08ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 47.5MB in the end (delta: 11.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 158.29ms. Allocated memory is still 111.1MB. Free memory was 47.5MB in the beginning and 71.1MB in the end (delta: -23.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,749 INFO L158 Benchmark]: Boogie Preprocessor took 95.83ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 64.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,750 INFO L158 Benchmark]: RCFGBuilder took 1888.96ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 64.2MB in the beginning and 105.3MB in the end (delta: -41.1MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,750 INFO L158 Benchmark]: TraceAbstraction took 172.05ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 90.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 10:44:00,752 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 92.3MB. Free memory was 49.3MB in the beginning and 49.2MB in the end (delta: 72.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1119.08ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.3MB in the beginning and 47.5MB in the end (delta: 11.9MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 158.29ms. Allocated memory is still 111.1MB. Free memory was 47.5MB in the beginning and 71.1MB in the end (delta: -23.7MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.83ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 64.2MB in the end (delta: 6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1888.96ms. Allocated memory was 111.1MB in the beginning and 172.0MB in the end (delta: 60.8MB). Free memory was 64.2MB in the beginning and 105.3MB in the end (delta: -41.1MB). Peak memory consumption was 68.8MB. Max. memory is 16.1GB. * TraceAbstraction took 172.05ms. Allocated memory is still 172.0MB. Free memory was 105.3MB in the beginning and 90.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. 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 10:44:00,802 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_inw.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 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 10:44:02,443 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 10:44:02,445 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 10:44:02,477 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 10:44:02,477 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 10:44:02,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 10:44:02,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 10:44:02,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 10:44:02,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 10:44:02,489 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 10:44:02,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 10:44:02,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 10:44:02,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 10:44:02,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 10:44:02,503 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 10:44:02,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 10:44:02,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 10:44:02,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 10:44:02,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 10:44:02,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 10:44:02,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 10:44:02,515 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 10:44:02,516 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 10:44:02,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 10:44:02,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 10:44:02,523 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 10:44:02,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 10:44:02,525 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 10:44:02,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 10:44:02,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 10:44:02,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 10:44:02,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 10:44:02,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 10:44:02,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 10:44:02,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 10:44:02,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 10:44:02,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 10:44:02,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 10:44:02,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 10:44:02,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 10:44:02,532 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 10:44:02,536 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 10:44:02,568 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 10:44:02,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 10:44:02,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 10:44:02,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 10:44:02,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 10:44:02,571 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 10:44:02,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 10:44:02,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 10:44:02,572 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 10:44:02,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 10:44:02,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 10:44:02,574 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 10:44:02,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 10:44:02,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 10:44:02,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 10:44:02,575 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 10:44:02,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:44:02,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 10:44:02,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 10:44:02,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 10:44:02,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 10:44:02,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 10:44:02,577 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e6f79eda5be95b806b33aaa2a353a360ae33a1e35cc1bf6f128d14768d932de [2021-12-15 10:44:02,825 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 10:44:02,843 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 10:44:02,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 10:44:02,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 10:44:02,846 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 10:44:02,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-12-15 10:44:02,892 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1b32ac0/b088908cf0d0471c9f0b446fb3b10240/FLAG4ebedfbc2 [2021-12-15 10:44:03,445 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 10:44:03,445 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inw.i [2021-12-15 10:44:03,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1b32ac0/b088908cf0d0471c9f0b446fb3b10240/FLAG4ebedfbc2 [2021-12-15 10:44:03,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e1b32ac0/b088908cf0d0471c9f0b446fb3b10240 [2021-12-15 10:44:03,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 10:44:03,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 10:44:03,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 10:44:03,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 10:44:03,931 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 10:44:03,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:03" (1/1) ... [2021-12-15 10:44:03,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@628e6dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:03, skipping insertion in model container [2021-12-15 10:44:03,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:44:03" (1/1) ... [2021-12-15 10:44:03,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 10:44:03,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:44:04,137 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_inw.i[452,465] [2021-12-15 10:44:04,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:04,849 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 10:44:04,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 10:44:04,879 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_inw.i[452,465] [2021-12-15 10:44:04,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:04,978 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 10:44:04,989 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_inw.i[452,465] [2021-12-15 10:44:05,128 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 10:44:05,258 INFO L208 MainTranslator]: Completed translation [2021-12-15 10:44:05,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05 WrapperNode [2021-12-15 10:44:05,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 10:44:05,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 10:44:05,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 10:44:05,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 10:44:05,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,322 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,372 INFO L137 Inliner]: procedures = 482, calls = 839, calls flagged for inlining = 54, calls inlined = 38, statements flattened = 979 [2021-12-15 10:44:05,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 10:44:05,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 10:44:05,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 10:44:05,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 10:44:05,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,425 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 10:44:05,465 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 10:44:05,465 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 10:44:05,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 10:44:05,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (1/1) ... [2021-12-15 10:44:05,471 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 10:44:05,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 10:44:05,488 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 10:44:05,504 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 10:44:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2021-12-15 10:44:05,531 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2021-12-15 10:44:05,531 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-12-15 10:44:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-12-15 10:44:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-15 10:44:05,532 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 10:44:05,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-12-15 10:44:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-15 10:44:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-15 10:44:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-12-15 10:44:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2021-12-15 10:44:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2021-12-15 10:44:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2021-12-15 10:44:05,533 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-15 10:44:05,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-12-15 10:44:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 10:44:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2021-12-15 10:44:05,534 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2021-12-15 10:44:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 10:44:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 10:44:05,534 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:44:05,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-15 10:44:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2021-12-15 10:44:05,535 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2021-12-15 10:44:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2021-12-15 10:44:05,535 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2021-12-15 10:44:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 10:44:05,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 10:44:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2021-12-15 10:44:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2021-12-15 10:44:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-12-15 10:44:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 10:44:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-12-15 10:44:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-15 10:44:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 10:44:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 10:44:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2021-12-15 10:44:05,537 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2021-12-15 10:44:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 10:44:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 10:44:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-12-15 10:44:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-12-15 10:44:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-12-15 10:44:05,538 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2021-12-15 10:44:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2021-12-15 10:44:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-12-15 10:44:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-12-15 10:44:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 10:44:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-15 10:44:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2021-12-15 10:44:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2021-12-15 10:44:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-15 10:44:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-15 10:44:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2021-12-15 10:44:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2021-12-15 10:44:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2021-12-15 10:44:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2021-12-15 10:44:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2021-12-15 10:44:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2021-12-15 10:44:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2021-12-15 10:44:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2021-12-15 10:44:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-12-15 10:44:05,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-12-15 10:44:05,541 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2021-12-15 10:44:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2021-12-15 10:44:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-12-15 10:44:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2021-12-15 10:44:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2021-12-15 10:44:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-15 10:44:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-15 10:44:05,542 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2021-12-15 10:44:05,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2021-12-15 10:44:05,833 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 10:44:05,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 10:44:09,713 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 10:44:09,718 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 10:44:09,719 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-12-15 10:44:09,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:09 BoogieIcfgContainer [2021-12-15 10:44:09,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 10:44:09,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 10:44:09,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 10:44:09,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 10:44:09,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:44:03" (1/3) ... [2021-12-15 10:44:09,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d129eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:09, skipping insertion in model container [2021-12-15 10:44:09,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:44:05" (2/3) ... [2021-12-15 10:44:09,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d129eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:44:09, skipping insertion in model container [2021-12-15 10:44:09,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:44:09" (3/3) ... [2021-12-15 10:44:09,726 INFO L111 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inw.i [2021-12-15 10:44:09,729 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 10:44:09,729 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 10:44:09,765 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 10:44:09,771 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 10:44:09,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 10:44:09,791 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 10:44:09,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-12-15 10:44:09,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 10:44:09,795 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, 1, 1, 1] [2021-12-15 10:44:09,796 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION === [zf_readwErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 10:44:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 10:44:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash -697881774, now seen corresponding path program 1 times [2021-12-15 10:44:09,810 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 10:44:09,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396926290] [2021-12-15 10:44:09,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 10:44:09,812 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 10:44:09,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 10:44:09,815 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 10:44:09,828 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 10:44:09,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 10:44:10,176 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 10:44:10,177 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 10:44:10,179 INFO L158 Benchmark]: Toolchain (without parser) took 6252.69ms. Allocated memory was 58.7MB in the beginning and 172.0MB in the end (delta: 113.2MB). Free memory was 33.4MB in the beginning and 123.6MB in the end (delta: -90.2MB). Peak memory consumption was 84.8MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,180 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 10:44:10,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1330.89ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 33.2MB in the beginning and 56.4MB in the end (delta: -23.2MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,185 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.05ms. Allocated memory is still 94.4MB. Free memory was 56.4MB in the beginning and 47.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,185 INFO L158 Benchmark]: Boogie Preprocessor took 91.06ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 39.8MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,185 INFO L158 Benchmark]: RCFGBuilder took 4255.48ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 39.8MB in the beginning and 52.6MB in the end (delta: -12.8MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,186 INFO L158 Benchmark]: TraceAbstraction took 456.32ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 123.6MB in the end (delta: -72.1MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2021-12-15 10:44:10,187 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 58.7MB. Free memory was 40.5MB in the beginning and 40.4MB in the end (delta: 43.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1330.89ms. Allocated memory was 58.7MB in the beginning and 94.4MB in the end (delta: 35.7MB). Free memory was 33.2MB in the beginning and 56.4MB in the end (delta: -23.2MB). Peak memory consumption was 36.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.05ms. Allocated memory is still 94.4MB. Free memory was 56.4MB in the beginning and 47.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.06ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 39.8MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4255.48ms. Allocated memory was 94.4MB in the beginning and 142.6MB in the end (delta: 48.2MB). Free memory was 39.8MB in the beginning and 52.6MB in the end (delta: -12.8MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * TraceAbstraction took 456.32ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 51.5MB in the beginning and 123.6MB in the end (delta: -72.1MB). Peak memory consumption was 17.0MB. 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 10:44:10,221 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