./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/heapsort.i --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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:25,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:25,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:25,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:25,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:25,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:25,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:25,748 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:25,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:25,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:25,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:25,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:25,766 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:25,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:25,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:25,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:25,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:25,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:25,790 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:25,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:25,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:25,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:25,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:25,810 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:25,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:25,818 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:25,818 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:25,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:25,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:25,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:25,826 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:25,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:25,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:25,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:25,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:25,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:25,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:25,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:25,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:25,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:25,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:25,841 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:22:25,909 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:25,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:25,911 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:25,911 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:25,912 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:25,913 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:25,913 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:25,913 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:25,913 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:25,914 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:22:25,915 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:25,916 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:25,916 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:22:25,916 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:22:25,916 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:25,917 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:22:25,917 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:22:25,917 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:22:25,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:25,919 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:25,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:22:25,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:25,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:25,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:25,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:25,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:25,922 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:25,923 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:25,923 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:25,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:25,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:25,924 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:25,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:25,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:25,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:25,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:25,926 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:22:25,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:22:25,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:25,927 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:25,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:25,927 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2021-11-23 17:22:26,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:26,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:26,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:26,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:26,413 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:26,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loop-invgen/heapsort.i [2021-11-23 17:22:26,504 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/dd949a74e/9eeba0f039ee4f848f5155fe91e2e629/FLAG2c2d940b0 [2021-11-23 17:22:27,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:27,220 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i [2021-11-23 17:22:27,237 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/dd949a74e/9eeba0f039ee4f848f5155fe91e2e629/FLAG2c2d940b0 [2021-11-23 17:22:27,533 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/dd949a74e/9eeba0f039ee4f848f5155fe91e2e629 [2021-11-23 17:22:27,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:27,557 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:27,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:27,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:27,565 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:27,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f8a075 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27, skipping insertion in model container [2021-11-23 17:22:27,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,582 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:27,610 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:27,838 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-11-23 17:22:27,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:27,874 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:27,891 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-11-23 17:22:27,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:27,920 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:27,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27 WrapperNode [2021-11-23 17:22:27,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:27,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:27,923 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:27,923 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:27,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,943 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,970 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 77 [2021-11-23 17:22:27,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:27,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:27,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:27,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:27,983 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:27,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:28,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:28,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:28,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:28,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:28,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:27" (1/1) ... [2021-11-23 17:22:28,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:28,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:28,049 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:28,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:28,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:28,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:22:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:22:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:22:28,192 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:28,194 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:28,385 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:28,437 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 17:22:28,443 INFO L158 Benchmark]: Toolchain (without parser) took 885.31ms. Allocated memory is still 92.3MB. Free memory was 69.5MB in the beginning and 53.1MB in the end (delta: 16.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-23 17:22:28,444 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 92.3MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:28,446 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.46ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 66.8MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:28,447 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.01ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 65.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:28,448 INFO L158 Benchmark]: Boogie Preprocessor took 29.96ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:28,450 INFO L158 Benchmark]: RCFGBuilder took 438.45ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 53.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:28,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 92.3MB. Free memory is still 66.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.46ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 66.8MB in the end (delta: 2.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.01ms. Allocated memory is still 92.3MB. Free memory was 66.8MB in the beginning and 65.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.96ms. Allocated memory is still 92.3MB. Free memory was 65.2MB in the beginning and 64.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 438.45ms. Allocated memory is still 92.3MB. Free memory was 64.0MB in the beginning and 53.1MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. 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 17:22:28,557 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/heapsort.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:22:31,881 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:22:31,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:22:31,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:22:31,959 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:22:31,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:22:31,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:22:31,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:22:31,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:22:31,994 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:22:31,996 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:22:31,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:22:32,000 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:22:32,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:22:32,007 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:22:32,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:22:32,016 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:22:32,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:22:32,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:22:32,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:22:32,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:22:32,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:22:32,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:22:32,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:22:32,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:22:32,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:22:32,053 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:22:32,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:22:32,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:22:32,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:22:32,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:22:32,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:22:32,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:22:32,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:22:32,066 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:22:32,067 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:22:32,068 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:22:32,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:22:32,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:22:32,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:22:32,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:22:32,080 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:22:32,135 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:22:32,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:22:32,136 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:22:32,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:22:32,138 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:22:32,138 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:22:32,138 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:22:32,139 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:22:32,139 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:22:32,139 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:22:32,141 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:22:32,141 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:22:32,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:22:32,144 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:22:32,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:22:32,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:22:32,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:22:32,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:22:32,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:22:32,146 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:22:32,146 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:22:32,146 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:22:32,147 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:22:32,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:22:32,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:22:32,148 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:22:32,148 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:22:32,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:22:32,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:22:32,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:32,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:22:32,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:22:32,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:22:32,151 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:22:32,151 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:22:32,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:22:32,151 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:22:32,152 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:22:32,152 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e7c8e5dc2a9e8f11b25d1bb9948f05f37b9553e3dc9f8bd8213088dea43cb37 [2021-11-23 17:22:32,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:22:32,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:22:32,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:22:32,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:22:32,748 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:22:32,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/loop-invgen/heapsort.i [2021-11-23 17:22:32,849 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/d08067da4/6449c3d801104082903279948b443c76/FLAG8dbb6d348 [2021-11-23 17:22:33,504 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:22:33,505 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i [2021-11-23 17:22:33,520 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/d08067da4/6449c3d801104082903279948b443c76/FLAG8dbb6d348 [2021-11-23 17:22:33,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/data/d08067da4/6449c3d801104082903279948b443c76 [2021-11-23 17:22:33,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:22:33,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:22:33,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:33,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:22:33,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:22:33,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:33" (1/1) ... [2021-11-23 17:22:33,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b38ec50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:33, skipping insertion in model container [2021-11-23 17:22:33,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:33" (1/1) ... [2021-11-23 17:22:33,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:22:33,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:22:34,127 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-11-23 17:22:34,155 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:34,175 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:22:34,200 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_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/sv-benchmarks/c/loop-invgen/heapsort.i[893,906] [2021-11-23 17:22:34,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:22:34,283 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:22:34,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34 WrapperNode [2021-11-23 17:22:34,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:22:34,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:34,286 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:22:34,286 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:22:34,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,398 INFO L137 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 74 [2021-11-23 17:22:34,398 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:22:34,400 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:22:34,400 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:22:34,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:22:34,413 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,421 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,422 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,445 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:22:34,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:22:34,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:22:34,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:22:34,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (1/1) ... [2021-11-23 17:22:34,473 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:22:34,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:22:34,503 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:22:34,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:22:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:22:34,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:22:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:22:34,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:22:34,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:22:34,563 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:22:34,654 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:22:34,656 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:22:34,907 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:22:34,916 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:22:34,917 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 17:22:34,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:34 BoogieIcfgContainer [2021-11-23 17:22:34,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:22:34,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:22:34,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:22:34,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:22:34,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:22:33" (1/3) ... [2021-11-23 17:22:34,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162fd691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:34, skipping insertion in model container [2021-11-23 17:22:34,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:34" (2/3) ... [2021-11-23 17:22:34,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@162fd691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:22:34, skipping insertion in model container [2021-11-23 17:22:34,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:22:34" (3/3) ... [2021-11-23 17:22:34,931 INFO L111 eAbstractionObserver]: Analyzing ICFG heapsort.i [2021-11-23 17:22:34,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:22:34,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:22:35,042 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:22:35,052 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 17:22:35,052 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:22:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 17:22:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:22:35,098 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:22:35,099 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:22:35,100 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:22:35,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:22:35,108 INFO L85 PathProgramCache]: Analyzing trace with hash -839977130, now seen corresponding path program 1 times [2021-11-23 17:22:35,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:22:35,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213655695] [2021-11-23 17:22:35,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:22:35,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:22:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:22:35,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:22:35,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:22:35,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:22:35,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:22:35,403 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 17:22:35,409 INFO L158 Benchmark]: Toolchain (without parser) took 1547.71ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.5MB in the beginning and 45.7MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:35,414 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 54.5MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:35,415 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.88ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 50.6MB in the end (delta: -18.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2021-11-23 17:22:35,418 INFO L158 Benchmark]: Boogie Procedure Inliner took 113.19ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 48.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:22:35,419 INFO L158 Benchmark]: Boogie Preprocessor took 61.17ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 47.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:35,421 INFO L158 Benchmark]: RCFGBuilder took 458.13ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 36.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:22:35,424 INFO L158 Benchmark]: TraceAbstraction took 484.98ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 45.7MB in the end (delta: -9.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:22:35,438 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 54.5MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.88ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.2MB in the beginning and 50.6MB in the end (delta: -18.3MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 113.19ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 48.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.17ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 47.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.13ms. Allocated memory is still 67.1MB. Free memory was 47.5MB in the beginning and 36.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 484.98ms. Allocated memory is still 67.1MB. Free memory was 36.3MB in the beginning and 45.7MB in the end (delta: -9.3MB). There was no memory consumed. 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 17:22:35,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e6a6675-eea5-46f1-ab3f-1efe53532cf5/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