./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:50,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:50,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:50,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:50,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:50,600 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:50,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:50,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:50,607 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:50,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:50,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:50,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:50,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:50,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:50,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:50,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:50,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:50,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:50,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:50,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:50,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:50,633 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:50,635 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:50,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:50,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:50,642 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:50,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:50,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:50,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:50,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:50,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:50,649 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:50,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:50,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:50,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:50,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:50,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:50,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:50,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:50,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:50,659 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:50,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 17:26:50,694 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:50,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:50,695 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:50,695 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:50,696 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:50,696 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:50,697 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:50,697 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:50,697 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:50,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:26:50,698 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:50,698 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:50,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:26:50,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:26:50,699 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:50,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:26:50,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:26:50,701 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:26:50,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:50,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:26:50,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:50,702 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:50,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:50,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:50,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:50,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:50,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:50,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:50,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:50,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:50,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:50,706 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:50,706 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:50,706 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:26:50,707 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:26:50,707 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:50,707 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:50,707 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:50,708 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef [2021-11-23 17:26:51,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:51,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:51,050 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:51,051 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:51,053 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:51,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-11-23 17:26:51,164 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/9dbfa0163/da47baecf7534e539c53f0a5cb68df3f/FLAG5fdcfa5a0 [2021-11-23 17:26:52,169 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:26:52,170 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-11-23 17:26:52,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/9dbfa0163/da47baecf7534e539c53f0a5cb68df3f/FLAG5fdcfa5a0 [2021-11-23 17:26:52,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/9dbfa0163/da47baecf7534e539c53f0a5cb68df3f [2021-11-23 17:26:52,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:26:52,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:26:52,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:52,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:26:52,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:26:52,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:52" (1/1) ... [2021-11-23 17:26:52,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ebad01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:52, skipping insertion in model container [2021-11-23 17:26:52,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:26:52" (1/1) ... [2021-11-23 17:26:52,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:26:52,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:26:53,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-11-23 17:26:53,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:53,934 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:26:54,113 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-11-23 17:26:54,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:26:54,340 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:26:54,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54 WrapperNode [2021-11-23 17:26:54,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:26:54,343 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:54,343 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:26:54,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:26:54,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,585 INFO L137 Inliner]: procedures = 96, calls = 1014, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1808 [2021-11-23 17:26:54,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:26:54,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:26:54,587 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:26:54,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:26:54,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,631 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,631 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:26:54,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:26:54,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:26:54,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:26:54,839 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:26:54" (1/1) ... [2021-11-23 17:26:54,856 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:54,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:26:54,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:26:54,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:26:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:26:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:26:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:26:54,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-11-23 17:26:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-11-23 17:26:54,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2021-11-23 17:26:54,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2021-11-23 17:26:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 17:26:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 17:26:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:26:54,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-23 17:26:54,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-23 17:26:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-23 17:26:54,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-23 17:26:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-23 17:26:54,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-23 17:26:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:26:54,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 17:26:54,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 17:26:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2021-11-23 17:26:54,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2021-11-23 17:26:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:26:54,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:26:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 17:26:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 17:26:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2021-11-23 17:26:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2021-11-23 17:26:54,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 17:26:54,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 17:26:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-11-23 17:26:54,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-11-23 17:26:54,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-11-23 17:26:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-11-23 17:26:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2021-11-23 17:26:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2021-11-23 17:26:54,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 17:26:54,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 17:26:54,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2021-11-23 17:26:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2021-11-23 17:26:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2021-11-23 17:26:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2021-11-23 17:26:54,967 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:26:54,967 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:26:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:26:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2021-11-23 17:26:54,968 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2021-11-23 17:26:54,968 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:26:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 17:26:54,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 17:26:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2021-11-23 17:26:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2021-11-23 17:26:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:26:54,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:26:55,391 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:26:55,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:26:55,502 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:26:55,507 INFO L158 Benchmark]: Toolchain (without parser) took 2851.39ms. Allocated memory was 79.7MB in the beginning and 134.2MB in the end (delta: 54.5MB). Free memory was 38.3MB in the beginning and 55.5MB in the end (delta: -17.2MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2021-11-23 17:26:55,508 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:26:55,509 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1675.92ms. Allocated memory was 79.7MB in the beginning and 134.2MB in the end (delta: 54.5MB). Free memory was 38.2MB in the beginning and 94.4MB in the end (delta: -56.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2021-11-23 17:26:55,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 243.10ms. Allocated memory is still 134.2MB. Free memory was 94.4MB in the beginning and 81.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:26:55,511 INFO L158 Benchmark]: Boogie Preprocessor took 235.68ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 71.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:26:55,512 INFO L158 Benchmark]: RCFGBuilder took 681.33ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 55.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 17:26:55,516 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 79.7MB. Free memory was 52.4MB in the beginning and 52.4MB in the end (delta: 26.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1675.92ms. Allocated memory was 79.7MB in the beginning and 134.2MB in the end (delta: 54.5MB). Free memory was 38.2MB in the beginning and 94.4MB in the end (delta: -56.2MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 243.10ms. Allocated memory is still 134.2MB. Free memory was 94.4MB in the beginning and 81.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 235.68ms. Allocated memory is still 134.2MB. Free memory was 81.9MB in the beginning and 71.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 681.33ms. Allocated memory is still 134.2MB. Free memory was 71.4MB in the beginning and 55.5MB in the end (delta: 15.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: 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. [2021-11-23 17:26:55,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:26:58,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:26:58,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:26:58,636 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:26:58,636 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:26:58,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:26:58,640 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:26:58,642 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:26:58,645 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:26:58,646 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:26:58,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:26:58,650 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:26:58,651 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:26:58,652 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:26:58,654 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:26:58,656 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:26:58,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:26:58,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:26:58,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:26:58,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:26:58,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:26:58,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:26:58,671 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:26:58,672 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:26:58,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:26:58,678 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:26:58,678 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:26:58,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:26:58,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:26:58,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:26:58,682 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:26:58,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:26:58,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:26:58,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:26:58,688 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:26:58,688 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:26:58,689 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:26:58,689 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:26:58,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:26:58,691 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:26:58,692 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:26:58,693 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-23 17:26:58,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:26:58,747 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:26:58,748 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:26:58,748 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:26:58,749 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:26:58,750 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:26:58,751 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:26:58,751 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:26:58,751 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:26:58,752 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:26:58,753 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:26:58,753 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:26:58,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:26:58,756 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:26:58,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:26:58,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:26:58,757 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:26:58,757 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:26:58,757 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:26:58,757 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:26:58,758 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:26:58,758 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:26:58,758 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:26:58,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:26:58,759 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:26:58,759 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:26:58,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:26:58,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:26:58,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:26:58,761 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:26:58,761 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:26:58,761 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:26:58,762 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:26:58,762 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:26:58,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:26:58,763 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8a07fe1a25f7f87a80e2b435a79d4715298ae698f37888069e22026322224ef [2021-11-23 17:26:59,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:26:59,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:26:59,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:26:59,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:26:59,249 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:26:59,251 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-11-23 17:26:59,332 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/de8ecd0a2/1668c861c6434edf996eceab826cb162/FLAGb368a344a [2021-11-23 17:27:00,410 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:27:00,412 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i [2021-11-23 17:27:00,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/de8ecd0a2/1668c861c6434edf996eceab826cb162/FLAGb368a344a [2021-11-23 17:27:00,858 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/data/de8ecd0a2/1668c861c6434edf996eceab826cb162 [2021-11-23 17:27:00,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:27:00,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:27:00,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:00,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:27:00,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:27:00,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:00" (1/1) ... [2021-11-23 17:27:00,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0344c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:00, skipping insertion in model container [2021-11-23 17:27:00,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:00" (1/1) ... [2021-11-23 17:27:00,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:27:00,984 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:01,628 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-11-23 17:27:02,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:02,192 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 17:27:02,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:02,374 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-11-23 17:27:02,457 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:02,488 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:27:02,655 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-c0cc359-104_1a-drivers--usb--serial--qcserial.ko-entry_point.cil.out.i[95017,95030] [2021-11-23 17:27:02,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:02,856 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:27:02,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02 WrapperNode [2021-11-23 17:27:02,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:02,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:02,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:27:02,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:27:02,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:02,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,107 INFO L137 Inliner]: procedures = 105, calls = 1014, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 1743 [2021-11-23 17:27:03,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:03,108 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:27:03,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:27:03,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:27:03,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:27:03,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:27:03,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:27:03,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:27:03,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:02" (1/1) ... [2021-11-23 17:27:03,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:03,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:27:03,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:27:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:27:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-23 17:27:03,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:27:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_open [2021-11-23 17:27:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_open [2021-11-23 17:27:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 17:27:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 17:27:03,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-11-23 17:27:03,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-11-23 17:27:03,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-23 17:27:03,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-23 17:27:03,447 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2021-11-23 17:27:03,447 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2021-11-23 17:27:03,447 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 17:27:03,447 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 17:27:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_disconnect [2021-11-23 17:27:03,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_disconnect [2021-11-23 17:27:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 17:27:03,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 17:27:03,448 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2021-11-23 17:27:03,448 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2021-11-23 17:27:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 17:27:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 17:27:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write_room [2021-11-23 17:27:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write_room [2021-11-23 17:27:03,449 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:27:03,449 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:27:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:27:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:27:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:27:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 17:27:03,450 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_serial_data [2021-11-23 17:27:03,451 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_serial_data [2021-11-23 17:27:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 17:27:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-23 17:27:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-23 17:27:03,452 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_resume [2021-11-23 17:27:03,452 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_resume [2021-11-23 17:27:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:27:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 17:27:03,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-23 17:27:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:27:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-23 17:27:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-23 17:27:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2021-11-23 17:27:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2021-11-23 17:27:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_write [2021-11-23 17:27:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_write [2021-11-23 17:27:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_suspend [2021-11-23 17:27:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_suspend [2021-11-23 17:27:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_close [2021-11-23 17:27:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_close [2021-11-23 17:27:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 17:27:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 17:27:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wwan_chars_in_buffer [2021-11-23 17:27:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wwan_chars_in_buffer [2021-11-23 17:27:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:27:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:27:04,024 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:27:04,028 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:27:04,141 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:27:04,152 INFO L158 Benchmark]: Toolchain (without parser) took 3286.18ms. Allocated memory was 50.3MB in the beginning and 184.5MB in the end (delta: 134.2MB). Free memory was 30.8MB in the beginning and 121.9MB in the end (delta: -91.1MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2021-11-23 17:27:04,152 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 50.3MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:27:04,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1993.15ms. Allocated memory was 50.3MB in the beginning and 92.3MB in the end (delta: 41.9MB). Free memory was 30.6MB in the beginning and 40.7MB in the end (delta: -10.1MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2021-11-23 17:27:04,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 249.42ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 43.4MB in the end (delta: -2.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-23 17:27:04,162 INFO L158 Benchmark]: Boogie Preprocessor took 214.02ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 32.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:27:04,164 INFO L158 Benchmark]: RCFGBuilder took 819.58ms. Allocated memory was 92.3MB in the beginning and 184.5MB in the end (delta: 92.3MB). Free memory was 32.2MB in the beginning and 121.9MB in the end (delta: -89.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-23 17:27:04,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 50.3MB. Free memory is still 31.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1993.15ms. Allocated memory was 50.3MB in the beginning and 92.3MB in the end (delta: 41.9MB). Free memory was 30.6MB in the beginning and 40.7MB in the end (delta: -10.1MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 249.42ms. Allocated memory is still 92.3MB. Free memory was 40.7MB in the beginning and 43.4MB in the end (delta: -2.7MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 214.02ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 32.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 819.58ms. Allocated memory was 92.3MB in the beginning and 184.5MB in the end (delta: 92.3MB). Free memory was 32.2MB in the beginning and 121.9MB in the end (delta: -89.6MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: 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. [2021-11-23 17:27:04,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a63a800c-3c31-45b8-85bf-ee8b72162458/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable