./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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 32bit --witnessprinter.graph.data.programhash e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:25,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:25,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:25,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:25,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:25,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:25,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:25,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:25,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:25,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:25,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:25,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:25,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:25,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:25,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:25,723 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:25,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:25,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:25,729 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:25,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:25,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:25,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:25,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:25,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:25,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:25,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:25,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:25,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:25,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:25,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:25,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:25,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:25,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:25,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:25,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:25,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:25,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:25,768 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:25,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:25,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:25,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:25,771 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:33:25,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:25,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:25,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:25,805 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:25,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:25,807 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:25,807 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:25,807 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:25,807 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:25,807 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:33:25,808 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:25,808 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:25,808 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:33:25,808 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:33:25,809 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:25,809 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:33:25,809 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:33:25,809 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:33:25,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:25,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:25,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:33:25,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:25,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:25,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:25,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:25,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:25,812 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:25,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:25,813 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:25,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:25,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:25,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:25,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:25,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:25,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:25,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:25,817 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:33:25,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:33:25,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:25,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:25,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:25,818 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_0245f100-76f7-4878-a645-c482f1622e0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b [2021-11-23 17:33:26,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:26,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:26,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:26,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:26,100 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:26,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2021-11-23 17:33:26,180 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/53df8f1f5/840435927ca74a56a322aa0803e51906/FLAG2a2772fa1 [2021-11-23 17:33:26,734 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:26,734 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2021-11-23 17:33:26,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/53df8f1f5/840435927ca74a56a322aa0803e51906/FLAG2a2772fa1 [2021-11-23 17:33:27,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/53df8f1f5/840435927ca74a56a322aa0803e51906 [2021-11-23 17:33:27,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:27,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:27,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:27,151 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:27,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:27,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@378f8fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27, skipping insertion in model container [2021-11-23 17:33:27,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:27,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:27,400 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_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2021-11-23 17:33:27,419 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:27,428 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:27,440 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_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2021-11-23 17:33:27,445 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:27,459 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:27,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27 WrapperNode [2021-11-23 17:33:27,459 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:27,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:27,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:27,461 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:27,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,493 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 47 [2021-11-23 17:33:27,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:27,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:27,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:27,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:27,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,506 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:27,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:27,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:27,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:27,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:27" (1/1) ... [2021-11-23 17:33:27,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:27,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:27,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:27,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:27,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:33:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:33:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:33:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:27,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:33:27,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:33:27,656 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:27,657 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:27,782 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:27,799 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.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 17:33:27,804 INFO L158 Benchmark]: Toolchain (without parser) took 657.41ms. Allocated memory is still 109.1MB. Free memory was 79.3MB in the beginning and 71.5MB in the end (delta: 7.8MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-23 17:33:27,805 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:27,806 INFO L158 Benchmark]: CACSL2BoogieTranslator took 309.64ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 83.7MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:27,807 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.13ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:33:27,808 INFO L158 Benchmark]: Boogie Preprocessor took 22.39ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 937.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:33:27,810 INFO L158 Benchmark]: RCFGBuilder took 284.43ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 71.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:27,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 109.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 309.64ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 83.7MB in the end (delta: -4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.13ms. Allocated memory is still 109.1MB. Free memory was 83.7MB in the beginning and 82.4MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.39ms. Allocated memory is still 109.1MB. Free memory was 82.0MB in the beginning and 81.1MB in the end (delta: 937.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.43ms. Allocated memory is still 109.1MB. Free memory was 81.1MB in the beginning and 71.5MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. 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.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:33:27,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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 32bit --witnessprinter.graph.data.programhash e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:33:30,382 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:33:30,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:33:30,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:33:30,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:33:30,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:33:30,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:33:30,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:33:30,434 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:33:30,445 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:33:30,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:33:30,452 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:33:30,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:33:30,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:33:30,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:33:30,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:33:30,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:33:30,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:33:30,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:33:30,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:33:30,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:33:30,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:33:30,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:33:30,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:33:30,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:33:30,501 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:33:30,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:33:30,504 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:33:30,504 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:33:30,506 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:33:30,506 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:33:30,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:33:30,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:33:30,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:33:30,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:33:30,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:33:30,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:33:30,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:33:30,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:33:30,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:33:30,518 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:33:30,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:33:30,573 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:33:30,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:33:30,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:33:30,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:33:30,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:33:30,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:33:30,576 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:33:30,577 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:33:30,577 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:33:30,577 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:33:30,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:33:30,579 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:33:30,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:33:30,581 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:33:30,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:33:30,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:33:30,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:33:30,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:33:30,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:33:30,582 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:33:30,582 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:33:30,582 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:33:30,583 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:33:30,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:33:30,583 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:33:30,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:33:30,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:33:30,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:33:30,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:33:30,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:30,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:33:30,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:33:30,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:33:30,586 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:33:30,586 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:33:30,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:33:30,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:33:30,587 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:33:30,587 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_0245f100-76f7-4878-a645-c482f1622e0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e62f050c54efcaebe70ca4fab804a982fed550b56ad5b495e4ea54f0b2b8135b [2021-11-23 17:33:30,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:33:30,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:33:30,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:33:30,974 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:33:30,975 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:33:30,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2021-11-23 17:33:31,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/7d6285c1c/46a9a16cf27a4b7daf19ce64683d32d3/FLAG3d7fe29eb [2021-11-23 17:33:31,586 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:33:31,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c [2021-11-23 17:33:31,595 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/7d6285c1c/46a9a16cf27a4b7daf19ce64683d32d3/FLAG3d7fe29eb [2021-11-23 17:33:31,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/data/7d6285c1c/46a9a16cf27a4b7daf19ce64683d32d3 [2021-11-23 17:33:31,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:33:31,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:33:31,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:31,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:33:31,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:33:31,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:31" (1/1) ... [2021-11-23 17:33:31,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28e2ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:31, skipping insertion in model container [2021-11-23 17:33:31,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:33:31" (1/1) ... [2021-11-23 17:33:31,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:33:31,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:33:32,141 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_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2021-11-23 17:33:32,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:32,165 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:33:32,178 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_0245f100-76f7-4878-a645-c482f1622e0f/sv-benchmarks/c/nla-digbench-scaling/mannadiv_unwindbound1.c[573,586] [2021-11-23 17:33:32,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:33:32,226 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:33:32,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32 WrapperNode [2021-11-23 17:33:32,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:33:32,228 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:32,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:33:32,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:33:32,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,286 INFO L137 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2021-11-23 17:33:32,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:32,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:32,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:32,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:32,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:32,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:32,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:32,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:32,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (1/1) ... [2021-11-23 17:33:32,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:32,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:32,366 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:32,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:33:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 17:33:32,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 17:33:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:33:32,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:33:32,510 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:32,513 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:33:32,683 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:33:32,689 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:33:32,689 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:33:32,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:32 BoogieIcfgContainer [2021-11-23 17:33:32,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:33:32,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:33:32,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:33:32,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:33:32,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:33:31" (1/3) ... [2021-11-23 17:33:32,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14936e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:32, skipping insertion in model container [2021-11-23 17:33:32,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:33:32" (2/3) ... [2021-11-23 17:33:32,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14936e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:33:32, skipping insertion in model container [2021-11-23 17:33:32,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:33:32" (3/3) ... [2021-11-23 17:33:32,715 INFO L111 eAbstractionObserver]: Analyzing ICFG mannadiv_unwindbound1.c [2021-11-23 17:33:32,721 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:33:32,721 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:33:32,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:33:32,810 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=FINITE_AUTOMATA, 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 [2021-11-23 17:33:32,810 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:33:32,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-23 17:33:32,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 17:33:32,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:33:32,833 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:33:32,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:33:32,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:33:32,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1086166160, now seen corresponding path program 1 times [2021-11-23 17:33:32,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:33:32,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2088320661] [2021-11-23 17:33:32,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:33:32,852 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:33:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:33:32,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:33:32,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:33:32,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:33:33,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:33:33,158 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) [2021-11-23 17:33:33,162 INFO L158 Benchmark]: Toolchain (without parser) took 1221.69ms. Allocated memory is still 71.3MB. Free memory was 55.7MB in the beginning and 35.2MB in the end (delta: 20.6MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2021-11-23 17:33:33,162 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 71.3MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:33,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 286.16ms. Allocated memory is still 71.3MB. Free memory was 55.6MB in the beginning and 55.8MB in the end (delta: -266.4kB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-23 17:33:33,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.73ms. Allocated memory is still 71.3MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:33:33,171 INFO L158 Benchmark]: Boogie Preprocessor took 40.02ms. Allocated memory is still 71.3MB. Free memory was 54.2MB in the beginning and 53.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:33:33,172 INFO L158 Benchmark]: RCFGBuilder took 363.78ms. Allocated memory is still 71.3MB. Free memory was 53.1MB in the beginning and 43.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:33:33,173 INFO L158 Benchmark]: TraceAbstraction took 450.91ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 35.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:33:33,177 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 71.3MB. Free memory is still 53.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 286.16ms. Allocated memory is still 71.3MB. Free memory was 55.6MB in the beginning and 55.8MB in the end (delta: -266.4kB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.73ms. Allocated memory is still 71.3MB. Free memory was 55.8MB in the beginning and 54.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.02ms. Allocated memory is still 71.3MB. Free memory was 54.2MB in the beginning and 53.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.78ms. Allocated memory is still 71.3MB. Free memory was 53.1MB in the beginning and 43.7MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 450.91ms. Allocated memory is still 71.3MB. Free memory was 43.2MB in the beginning and 35.3MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. 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. [2021-11-23 17:33:33,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0245f100-76f7-4878-a645-c482f1622e0f/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable