./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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 4751d3eb3f8125549e47ad071da84be7a54e1805eb31936796833555d65c49e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:47,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:47,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:47,913 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:47,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:47,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:47,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:47,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:47,931 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:47,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:47,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:47,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:47,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:47,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:47,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:47,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:47,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:47,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:47,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:47,970 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:47,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:47,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:47,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:47,984 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:47,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:47,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:47,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:47,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:47,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:47,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:47,998 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:47,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:48,001 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:48,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:48,005 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:48,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:48,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:48,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:48,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:48,008 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:48,008 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:48,009 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:19:48,060 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:48,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:48,061 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:48,062 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:48,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:48,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:48,070 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:48,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:48,070 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:48,070 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:19:48,072 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:48,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:48,072 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:19:48,072 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:19:48,073 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:48,073 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:19:48,073 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:19:48,074 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:19:48,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:48,075 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:48,076 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:19:48,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:48,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:48,076 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:48,077 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:48,077 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:48,078 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:48,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:48,079 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:48,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:48,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:48,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:48,080 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:48,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:48,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:48,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:48,081 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:19:48,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:19:48,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:48,082 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:48,082 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:48,083 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4751d3eb3f8125549e47ad071da84be7a54e1805eb31936796833555d65c49e8 [2021-11-23 17:19:48,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:48,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:48,420 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:48,421 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:48,422 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:48,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2021-11-23 17:19:48,501 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/cda6acd0e/2c7dec01af824f1d8d066f80311b42aa/FLAG20dbccd5f [2021-11-23 17:19:49,129 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:49,131 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2021-11-23 17:19:49,143 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/cda6acd0e/2c7dec01af824f1d8d066f80311b42aa/FLAG20dbccd5f [2021-11-23 17:19:49,490 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/cda6acd0e/2c7dec01af824f1d8d066f80311b42aa [2021-11-23 17:19:49,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:49,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:49,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:49,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:49,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:49,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70a69eb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49, skipping insertion in model container [2021-11-23 17:19:49,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:49,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:49,739 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c[555,568] [2021-11-23 17:19:49,754 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:49,763 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:49,777 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c[555,568] [2021-11-23 17:19:49,782 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:49,797 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:49,797 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49 WrapperNode [2021-11-23 17:19:49,797 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:49,799 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:49,799 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:49,799 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:49,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,814 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,833 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2021-11-23 17:19:49,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:49,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:49,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:49,835 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:49,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,879 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:49,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:49,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:49,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:49,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (1/1) ... [2021-11-23 17:19:49,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:49,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:49,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:49,945 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:49,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:19:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:49,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:49,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:19:49,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:19:50,064 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:50,066 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:50,203 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:50,216 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:19:50,216 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:19:50,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:50 BoogieIcfgContainer [2021-11-23 17:19:50,220 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:19:50,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:19:50,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:19:50,230 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:19:50,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:19:49" (1/3) ... [2021-11-23 17:19:50,231 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae71c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:50, skipping insertion in model container [2021-11-23 17:19:50,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:49" (2/3) ... [2021-11-23 17:19:50,232 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ae71c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:50, skipping insertion in model container [2021-11-23 17:19:50,232 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:50" (3/3) ... [2021-11-23 17:19:50,234 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound5.c [2021-11-23 17:19:50,240 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:19:50,240 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:19:50,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:19:50,304 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 17:19:50,305 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:19:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 17:19:50,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 17:19:50,330 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:50,331 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:50,332 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:50,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:50,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1844912769, now seen corresponding path program 1 times [2021-11-23 17:19:50,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 17:19:50,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091297336] [2021-11-23 17:19:50,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:50,351 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 17:19:50,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 17:19:50,425 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:19:50,431 INFO L158 Benchmark]: Toolchain (without parser) took 931.89ms. Allocated memory is still 104.9MB. Free memory was 74.8MB in the beginning and 57.9MB in the end (delta: 17.0MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,431 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:50,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.18ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 78.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,433 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.02ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,434 INFO L158 Benchmark]: Boogie Preprocessor took 46.97ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:50,435 INFO L158 Benchmark]: RCFGBuilder took 337.59ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 67.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,436 INFO L158 Benchmark]: TraceAbstraction took 205.17ms. Allocated memory is still 104.9MB. Free memory was 66.7MB in the beginning and 57.9MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:50,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 104.9MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.18ms. Allocated memory is still 104.9MB. Free memory was 74.5MB in the beginning and 78.9MB in the end (delta: -4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.02ms. Allocated memory is still 104.9MB. Free memory was 78.9MB in the beginning and 77.6MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.97ms. Allocated memory is still 104.9MB. Free memory was 77.6MB in the beginning and 76.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 337.59ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 67.5MB in the end (delta: 9.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 205.17ms. Allocated memory is still 104.9MB. Free memory was 66.7MB in the beginning and 57.9MB in the end (delta: 8.9MB). 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 17:19:50,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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 4751d3eb3f8125549e47ad071da84be7a54e1805eb31936796833555d65c49e8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:19:53,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:19:53,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:19:53,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:19:53,153 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:19:53,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:19:53,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:19:53,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:19:53,171 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:19:53,183 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:19:53,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:19:53,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:19:53,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:19:53,191 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:19:53,193 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:19:53,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:19:53,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:19:53,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:19:53,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:19:53,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:19:53,216 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:19:53,218 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:19:53,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:19:53,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:19:53,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:19:53,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:19:53,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:19:53,240 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:19:53,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:19:53,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:19:53,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:19:53,244 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:19:53,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:19:53,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:19:53,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:19:53,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:19:53,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:19:53,252 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:19:53,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:19:53,254 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:19:53,255 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:19:53,261 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:19:53,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:19:53,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:19:53,314 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:19:53,315 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:19:53,316 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:19:53,316 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:19:53,316 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:19:53,316 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:19:53,317 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:19:53,317 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:19:53,318 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:19:53,319 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:19:53,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:19:53,321 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:19:53,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:19:53,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:19:53,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:19:53,322 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:19:53,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:19:53,322 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:19:53,322 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:19:53,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:19:53,323 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:19:53,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:19:53,323 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:19:53,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:19:53,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:19:53,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:19:53,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:19:53,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:53,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:19:53,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:19:53,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:19:53,326 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:19:53,326 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:19:53,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:19:53,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:19:53,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:19:53,328 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4751d3eb3f8125549e47ad071da84be7a54e1805eb31936796833555d65c49e8 [2021-11-23 17:19:53,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:19:53,855 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:19:53,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:19:53,859 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:19:53,861 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:19:53,863 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2021-11-23 17:19:53,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/114052410/a3bfab78bcf5411b8fe73de025ac1c80/FLAG2513ff0e3 [2021-11-23 17:19:54,608 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:19:54,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c [2021-11-23 17:19:54,616 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/114052410/a3bfab78bcf5411b8fe73de025ac1c80/FLAG2513ff0e3 [2021-11-23 17:19:54,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/data/114052410/a3bfab78bcf5411b8fe73de025ac1c80 [2021-11-23 17:19:54,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:19:54,644 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:19:54,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:54,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:19:54,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:19:54,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4729a8ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54, skipping insertion in model container [2021-11-23 17:19:54,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:54,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:19:54,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:19:54,866 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c[555,568] [2021-11-23 17:19:54,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:54,908 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:19:54,935 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_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/sv-benchmarks/c/nla-digbench-scaling/geo1-u_unwindbound5.c[555,568] [2021-11-23 17:19:54,956 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:19:54,994 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:19:54,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54 WrapperNode [2021-11-23 17:19:54,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:19:54,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:54,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:19:54,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:19:55,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,049 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2021-11-23 17:19:55,049 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:19:55,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:19:55,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:19:55,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:19:55,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,093 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:19:55,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:19:55,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:19:55,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:19:55,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (1/1) ... [2021-11-23 17:19:55,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:19:55,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:19:55,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:19:55,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:19:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:19:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:19:55,217 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:19:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:19:55,218 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 17:19:55,218 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 17:19:55,313 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:19:55,315 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:19:55,715 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:19:55,723 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:19:55,723 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:19:55,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:55 BoogieIcfgContainer [2021-11-23 17:19:55,726 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:19:55,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:19:55,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:19:55,732 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:19:55,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:19:54" (1/3) ... [2021-11-23 17:19:55,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b09fb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:55, skipping insertion in model container [2021-11-23 17:19:55,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:19:54" (2/3) ... [2021-11-23 17:19:55,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b09fb57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:19:55, skipping insertion in model container [2021-11-23 17:19:55,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:19:55" (3/3) ... [2021-11-23 17:19:55,754 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_unwindbound5.c [2021-11-23 17:19:55,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:19:55,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:19:55,835 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:19:55,857 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 17:19:55,857 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:19:55,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 17:19:55,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 17:19:55,913 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:19:55,914 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:19:55,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:19:55,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:19:55,927 INFO L85 PathProgramCache]: Analyzing trace with hash 561702714, now seen corresponding path program 1 times [2021-11-23 17:19:55,946 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:19:55,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1089455437] [2021-11-23 17:19:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:19:55,950 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:19:55,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:19:55,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:19:55,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:19:56,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:19:56,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:19:56,222 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 17:19:56,226 INFO L158 Benchmark]: Toolchain (without parser) took 1580.83ms. Allocated memory is still 79.7MB. Free memory was 45.3MB in the beginning and 43.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:56,227 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 79.7MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:56,228 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.03ms. Allocated memory is still 79.7MB. Free memory was 45.2MB in the beginning and 63.8MB in the end (delta: -18.7MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-23 17:19:56,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.24ms. Allocated memory is still 79.7MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:56,229 INFO L158 Benchmark]: Boogie Preprocessor took 55.77ms. Allocated memory is still 79.7MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:19:56,230 INFO L158 Benchmark]: RCFGBuilder took 617.43ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 51.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:19:56,231 INFO L158 Benchmark]: TraceAbstraction took 496.42ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 43.3MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:19:56,246 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 79.7MB. Free memory was 61.9MB in the beginning and 61.9MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.03ms. Allocated memory is still 79.7MB. Free memory was 45.2MB in the beginning and 63.8MB in the end (delta: -18.7MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.24ms. Allocated memory is still 79.7MB. Free memory was 63.6MB in the beginning and 62.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.77ms. Allocated memory is still 79.7MB. Free memory was 62.3MB in the beginning and 61.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 617.43ms. Allocated memory is still 79.7MB. Free memory was 61.0MB in the beginning and 51.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 496.42ms. Allocated memory is still 79.7MB. Free memory was 51.5MB in the beginning and 43.3MB in the end (delta: 8.2MB). 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 17:19:56,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2800fd5e-eab1-414f-bf8c-b3ac1fe539fb/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable