./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:46:57,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:46:57,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:46:57,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:46:57,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:46:57,706 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:46:57,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:46:57,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:46:57,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:46:57,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:46:57,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:46:57,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:46:57,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:46:57,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:46:57,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:46:57,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:46:57,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:46:57,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:46:57,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:46:57,751 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:46:57,754 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:46:57,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:46:57,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:46:57,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:46:57,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:46:57,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:46:57,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:46:57,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:46:57,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:46:57,770 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:46:57,771 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:46:57,772 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:46:57,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:46:57,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:46:57,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:46:57,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:46:57,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:46:57,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:46:57,779 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:46:57,780 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:46:57,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:46:57,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:46:57,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:46:57,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:46:57,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:46:57,833 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:46:57,840 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:46:57,840 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:46:57,841 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:46:57,841 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:46:57,841 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:46:57,841 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:46:57,842 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:46:57,843 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:46:57,843 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:46:57,843 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:46:57,843 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:46:57,844 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:46:57,844 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:46:57,844 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:46:57,845 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:46:57,845 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:46:57,846 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:46:57,846 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:46:57,846 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:46:57,846 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:46:57,847 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:46:57,847 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:46:57,848 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:46:57,849 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:46:57,849 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:46:57,849 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:46:57,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:46:57,850 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:46:57,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:57,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:46:57,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:46:57,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:46:57,851 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:46:57,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:46:57,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:46:57,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:46:57,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:46:57,852 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af [2021-11-23 16:46:58,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:46:58,210 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:46:58,212 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:46:58,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:46:58,215 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:46:58,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2021-11-23 16:46:58,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/96e1e6aab/24f66af1c7c94c29a44c4a95c355b9a0/FLAG9fcdc3bad [2021-11-23 16:46:58,907 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:46:58,908 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2021-11-23 16:46:58,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/96e1e6aab/24f66af1c7c94c29a44c4a95c355b9a0/FLAG9fcdc3bad [2021-11-23 16:46:59,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/96e1e6aab/24f66af1c7c94c29a44c4a95c355b9a0 [2021-11-23 16:46:59,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:46:59,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:46:59,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:46:59,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:46:59,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:46:59,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:59" (1/1) ... [2021-11-23 16:46:59,162 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45b2d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:46:59, skipping insertion in model container [2021-11-23 16:46:59,162 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:46:59" (1/1) ... [2021-11-23 16:46:59,169 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:46:59,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:46:59,471 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2021-11-23 16:46:59,902 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:46:59,913 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:46:59,926 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2021-11-23 16:47:00,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:00,036 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:00,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00 WrapperNode [2021-11-23 16:47:00,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:00,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:00,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:00,039 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:00,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,144 INFO L137 Inliner]: procedures = 88, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 754 [2021-11-23 16:47:00,156 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:00,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:00,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:00,158 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:00,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,183 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:00,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:00,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:00,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:00,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:00" (1/1) ... [2021-11-23 16:47:00,293 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:00,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:00,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:00,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:00,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:47:00,357 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:47:00,357 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:47:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:47:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:47:00,358 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:47:00,358 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:47:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:47:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:47:00,359 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:47:00,359 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:47:00,360 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:47:00,361 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:47:00,361 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:47:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:47:00,362 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:47:00,362 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:47:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:47:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:47:00,363 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:47:00,363 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:47:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:47:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:47:00,364 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:47:00,364 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:00,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:00,365 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:47:00,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:47:00,532 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:00,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:01,712 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:01,774 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 16:47:01,784 INFO L158 Benchmark]: Toolchain (without parser) took 2637.03ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 43.7MB in the beginning and 58.6MB in the end (delta: -14.9MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2021-11-23 16:47:01,785 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:01,787 INFO L158 Benchmark]: CACSL2BoogieTranslator took 881.63ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 43.5MB in the beginning and 56.4MB in the end (delta: -12.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:01,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.52ms. Allocated memory is still 109.1MB. Free memory was 56.4MB in the beginning and 51.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:01,789 INFO L158 Benchmark]: Boogie Preprocessor took 119.04ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 82.6MB in the end (delta: -30.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-11-23 16:47:01,789 INFO L158 Benchmark]: RCFGBuilder took 1504.13ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 58.6MB in the end (delta: 24.0MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2021-11-23 16:47:01,798 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 86.0MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 881.63ms. Allocated memory was 86.0MB in the beginning and 109.1MB in the end (delta: 23.1MB). Free memory was 43.5MB in the beginning and 56.4MB in the end (delta: -12.9MB). Peak memory consumption was 8.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.52ms. Allocated memory is still 109.1MB. Free memory was 56.4MB in the beginning and 51.8MB in the end (delta: 4.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 119.04ms. Allocated memory is still 109.1MB. Free memory was 51.8MB in the beginning and 82.6MB in the end (delta: -30.8MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1504.13ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 58.6MB in the end (delta: 24.0MB). Peak memory consumption was 47.5MB. 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 16:47:01,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:04,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:04,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:04,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:04,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:04,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:04,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:04,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:04,316 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:04,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:04,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:04,320 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:04,321 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:04,322 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:04,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:04,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:04,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:04,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:04,331 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:04,334 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:04,336 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:04,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:04,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:04,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:04,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:04,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:04,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:04,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:04,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:04,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:04,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:04,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:04,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:04,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:04,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:04,354 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:04,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:04,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:04,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:04,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:04,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:04,360 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:04,411 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:04,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:04,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:04,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:04,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:04,413 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:04,413 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:04,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:04,414 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:04,414 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:04,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:04,415 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:04,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:04,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:04,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:04,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:04,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:04,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:04,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:04,418 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:04,418 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:04,419 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:04,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:04,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:04,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:04,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:04,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:04,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:04,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:04,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:04,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:04,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:04,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:04,422 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:04,422 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:04,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:04,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:04,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:04,423 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8190dbbeca15ebdc96e247bb91a06680a00a60089c25180495df59d4a11849af [2021-11-23 16:47:04,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:04,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:04,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:04,868 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:04,868 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:04,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2021-11-23 16:47:04,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/a5aee3635/5a31986a84b94ec0873d810c6be29f3a/FLAG788bccbae [2021-11-23 16:47:05,772 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:05,772 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c [2021-11-23 16:47:05,806 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/a5aee3635/5a31986a84b94ec0873d810c6be29f3a/FLAG788bccbae [2021-11-23 16:47:05,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/data/a5aee3635/5a31986a84b94ec0873d810c6be29f3a [2021-11-23 16:47:05,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:05,885 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:05,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:05,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:05,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:05,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:05" (1/1) ... [2021-11-23 16:47:05,906 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad5b856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:05, skipping insertion in model container [2021-11-23 16:47:05,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:05" (1/1) ... [2021-11-23 16:47:05,913 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:05,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:06,162 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2021-11-23 16:47:06,580 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:06,594 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-23 16:47:06,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:06,618 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2021-11-23 16:47:06,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:06,725 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:06,737 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_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/sv-benchmarks/c/product-lines/elevator_spec2_product01.cil.c[1545,1558] [2021-11-23 16:47:06,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:06,849 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:47:06,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06 WrapperNode [2021-11-23 16:47:06,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:06,851 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:06,851 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:47:06,851 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:47:06,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:06,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:06,993 INFO L137 Inliner]: procedures = 90, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 714 [2021-11-23 16:47:06,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:47:06,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:47:06,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:47:06,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:47:07,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,024 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,119 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:47:07,137 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:47:07,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:47:07,138 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:47:07,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (1/1) ... [2021-11-23 16:47:07,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:07,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:47:07,167 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:47:07,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:47:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:47:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2021-11-23 16:47:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2021-11-23 16:47:07,215 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2021-11-23 16:47:07,215 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2021-11-23 16:47:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2021-11-23 16:47:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2021-11-23 16:47:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2021-11-23 16:47:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2021-11-23 16:47:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-23 16:47:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-23 16:47:07,216 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-23 16:47:07,216 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-23 16:47:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2021-11-23 16:47:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2021-11-23 16:47:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2021-11-23 16:47:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2021-11-23 16:47:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2021-11-23 16:47:07,217 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2021-11-23 16:47:07,217 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2021-11-23 16:47:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2021-11-23 16:47:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2021-11-23 16:47:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2021-11-23 16:47:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:47:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2021-11-23 16:47:07,218 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2021-11-23 16:47:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2021-11-23 16:47:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2021-11-23 16:47:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2021-11-23 16:47:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2021-11-23 16:47:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2021-11-23 16:47:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2021-11-23 16:47:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2021-11-23 16:47:07,219 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2021-11-23 16:47:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2021-11-23 16:47:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2021-11-23 16:47:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2021-11-23 16:47:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2021-11-23 16:47:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2021-11-23 16:47:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2021-11-23 16:47:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:47:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:47:07,221 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2021-11-23 16:47:07,221 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2021-11-23 16:47:07,404 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:47:07,406 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:08,596 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:08,617 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:47:08,618 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:47:08,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:08 BoogieIcfgContainer [2021-11-23 16:47:08,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:47:08,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:47:08,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:47:08,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:47:08,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:05" (1/3) ... [2021-11-23 16:47:08,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c82e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:08, skipping insertion in model container [2021-11-23 16:47:08,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:06" (2/3) ... [2021-11-23 16:47:08,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c82e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:47:08, skipping insertion in model container [2021-11-23 16:47:08,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:47:08" (3/3) ... [2021-11-23 16:47:08,632 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product01.cil.c [2021-11-23 16:47:08,638 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:47:08,638 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:47:08,706 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:47:08,713 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 16:47:08,714 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:47:08,759 INFO L276 IsEmpty]: Start isEmpty. Operand has 517 states, 409 states have (on average 1.7163814180929096) internal successors, (702), 430 states have internal predecessors, (702), 86 states have call successors, (86), 20 states have call predecessors, (86), 20 states have return successors, (86), 80 states have call predecessors, (86), 86 states have call successors, (86) [2021-11-23 16:47:08,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-23 16:47:08,795 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:47:08,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:47:08,797 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:47:08,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:47:08,803 INFO L85 PathProgramCache]: Analyzing trace with hash 998203465, now seen corresponding path program 1 times [2021-11-23 16:47:08,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:47:08,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874149805] [2021-11-23 16:47:08,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:47:08,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:47:08,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:47:08,822 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:47:08,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 16:47:08,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 16:47:09,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 16:47:09,103 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 16:47:09,107 INFO L158 Benchmark]: Toolchain (without parser) took 3221.21ms. Allocated memory was 67.1MB in the beginning and 111.1MB in the end (delta: 44.0MB). Free memory was 44.1MB in the beginning and 66.1MB in the end (delta: -22.0MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,108 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:09,109 INFO L158 Benchmark]: CACSL2BoogieTranslator took 963.67ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 165.3kB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.76ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 39.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,110 INFO L158 Benchmark]: Boogie Preprocessor took 139.58ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 59.7MB in the end (delta: -20.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,111 INFO L158 Benchmark]: RCFGBuilder took 1484.13ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 59.7MB in the beginning and 80.6MB in the end (delta: -20.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,112 INFO L158 Benchmark]: TraceAbstraction took 480.59ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 66.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 16:47:09,114 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 963.67ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 165.3kB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.76ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 39.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 139.58ms. Allocated memory is still 81.8MB. Free memory was 39.1MB in the beginning and 59.7MB in the end (delta: -20.6MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1484.13ms. Allocated memory was 81.8MB in the beginning and 111.1MB in the end (delta: 29.4MB). Free memory was 59.7MB in the beginning and 80.6MB in the end (delta: -20.9MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * TraceAbstraction took 480.59ms. Allocated memory is still 111.1MB. Free memory was 80.5MB in the beginning and 66.1MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:47:09,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9d1a42a-bc90-4cb6-a4f8-0a0645a1e58e/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