./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:24:26,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:24:26,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:24:26,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:24:26,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:24:26,246 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:24:26,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:24:26,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:24:26,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:24:26,254 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:24:26,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:24:26,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:24:26,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:24:26,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:24:26,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:24:26,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:24:26,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:24:26,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:24:26,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:24:26,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:24:26,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:24:26,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:24:26,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:24:26,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:24:26,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:24:26,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:24:26,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:24:26,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:24:26,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:24:26,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:24:26,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:24:26,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:24:26,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:24:26,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:24:26,293 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:24:26,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:24:26,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:24:26,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:24:26,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:24:26,297 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:24:26,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:24:26,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 13:24:26,326 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:24:26,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:24:26,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:24:26,328 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:24:26,328 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:24:26,329 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:24:26,329 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:24:26,330 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:24:26,330 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:24:26,330 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:24:26,331 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:24:26,331 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:24:26,331 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:24:26,331 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:24:26,332 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:24:26,332 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:24:26,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:24:26,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:24:26,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:24:26,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:24:26,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:24:26,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:24:26,334 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:24:26,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:24:26,335 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:24:26,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:24:26,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:24:26,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:24:26,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:24:26,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:24:26,337 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:24:26,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:24:26,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:24:26,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:24:26,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:24:26,338 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:24:26,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:24:26,338 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2021-11-19 13:24:26,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:24:26,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:24:26,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:24:26,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:24:26,631 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:24:26,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:24:26,722 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/d656fa157/b7cd14f0e1404b18b979b525d325d06c/FLAG3ee0c5cac [2021-11-19 13:24:27,390 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:24:27,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:24:27,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/d656fa157/b7cd14f0e1404b18b979b525d325d06c/FLAG3ee0c5cac [2021-11-19 13:24:27,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/d656fa157/b7cd14f0e1404b18b979b525d325d06c [2021-11-19 13:24:27,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:24:27,586 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:24:27,588 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:27,588 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:24:27,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:24:27,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:27" (1/1) ... [2021-11-19 13:24:27,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73baa546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:27, skipping insertion in model container [2021-11-19 13:24:27,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:27" (1/1) ... [2021-11-19 13:24:27,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:24:27,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:24:28,313 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:24:28,383 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:28,399 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 13:24:28,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5d91ce8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:28, skipping insertion in model container [2021-11-19 13:24:28,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:28,401 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:24:28,403 INFO L158 Benchmark]: Toolchain (without parser) took 815.59ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.6MB in the beginning and 72.3MB in the end (delta: -24.7MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-11-19 13:24:28,404 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 66.5MB in the beginning and 66.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:24:28,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.80ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 72.3MB in the end (delta: -25.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-11-19 13:24:28,407 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 86.0MB. Free memory was 66.5MB in the beginning and 66.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.80ms. Allocated memory was 86.0MB in the beginning and 104.9MB in the end (delta: 18.9MB). Free memory was 47.3MB in the beginning and 72.3MB in the end (delta: -25.0MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1515]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/basename-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:24:30,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:24:30,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:24:30,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:24:30,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:24:30,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:24:30,872 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:24:30,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:24:30,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:24:30,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:24:30,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:24:30,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:24:30,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:24:30,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:24:30,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:24:30,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:24:30,908 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:24:30,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:24:30,916 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:24:30,919 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:24:30,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:24:30,927 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:24:30,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:24:30,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:24:30,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:24:30,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:24:30,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:24:30,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:24:30,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:24:30,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:24:30,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:24:30,944 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:24:30,946 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:24:30,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:24:30,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:24:30,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:24:30,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:24:30,950 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:24:30,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:24:30,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:24:30,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:24:30,958 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 13:24:31,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:24:31,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:24:31,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:24:31,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:24:31,003 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:24:31,003 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:24:31,004 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:24:31,004 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:24:31,004 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:24:31,004 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:24:31,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:24:31,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:24:31,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:24:31,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:24:31,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:24:31,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:24:31,008 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:24:31,008 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:24:31,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:24:31,009 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:24:31,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:24:31,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:24:31,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:24:31,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:24:31,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:24:31,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:24:31,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:24:31,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:24:31,011 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:24:31,011 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:24:31,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:24:31,012 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:24:31,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:24:31,012 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c899d9f75a53a80fe85551911016ababc48d03a22c1656000243377f27dbc4c0 [2021-11-19 13:24:31,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:24:31,494 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:24:31,497 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:24:31,499 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:24:31,500 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:24:31,501 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:24:31,590 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/229c02553/2df34eab45244f399979fc29da07efec/FLAGe7523850c [2021-11-19 13:24:32,491 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:24:32,492 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i [2021-11-19 13:24:32,519 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/229c02553/2df34eab45244f399979fc29da07efec/FLAGe7523850c [2021-11-19 13:24:32,603 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/data/229c02553/2df34eab45244f399979fc29da07efec [2021-11-19 13:24:32,605 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:24:32,607 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:24:32,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:32,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:24:32,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:24:32,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:32" (1/1) ... [2021-11-19 13:24:32,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623f09f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:32, skipping insertion in model container [2021-11-19 13:24:32,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:24:32" (1/1) ... [2021-11-19 13:24:32,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:24:32,717 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:24:33,417 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:24:33,512 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:33,557 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:24:33,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:24:33,692 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:24:33,730 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:33,736 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:24:33,805 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_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/sv-benchmarks/c/busybox-1.22.0/basename-2.i[58078,58091] [2021-11-19 13:24:33,842 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:24:34,001 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:24:34,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34 WrapperNode [2021-11-19 13:24:34,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:24:34,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:24:34,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:24:34,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:24:34,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,081 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,130 INFO L137 Inliner]: procedures = 354, calls = 114, calls flagged for inlining = 10, calls inlined = 9, statements flattened = 356 [2021-11-19 13:24:34,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:24:34,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:24:34,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:24:34,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:24:34,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,188 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,210 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:24:34,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:24:34,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:24:34,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:24:34,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (1/1) ... [2021-11-19 13:24:34,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:24:34,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:24:34,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:24:34,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:24:34,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:24:34,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:24:34,318 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 13:24:34,319 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 13:24:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:24:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:24:34,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 13:24:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:24:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:24:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:24:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 13:24:34,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:24:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-19 13:24:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:24:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:24:34,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:24:34,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:24:34,833 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:24:34,834 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:24:35,538 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:24:35,547 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:24:35,547 INFO L301 CfgBuilder]: Removed 9 assume(true) statements. [2021-11-19 13:24:35,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:24:35 BoogieIcfgContainer [2021-11-19 13:24:35,564 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:24:35,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:24:35,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:24:35,570 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:24:35,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:24:32" (1/3) ... [2021-11-19 13:24:35,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:24:35, skipping insertion in model container [2021-11-19 13:24:35,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:24:34" (2/3) ... [2021-11-19 13:24:35,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5328a4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:24:35, skipping insertion in model container [2021-11-19 13:24:35,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:24:35" (3/3) ... [2021-11-19 13:24:35,580 INFO L111 eAbstractionObserver]: Analyzing ICFG basename-2.i [2021-11-19 13:24:35,586 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:24:35,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 13:24:35,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:24:35,685 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 [2021-11-19 13:24:35,685 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 13:24:35,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 76 states have (on average 1.605263157894737) internal successors, (122), 77 states have internal predecessors, (122), 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) [2021-11-19 13:24:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 13:24:35,717 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:35,718 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] [2021-11-19 13:24:35,718 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:35,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash 302095797, now seen corresponding path program 1 times [2021-11-19 13:24:35,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:35,747 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686379433] [2021-11-19 13:24:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:35,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:35,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:35,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:35,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:24:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:36,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:24:36,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:36,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:36,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:36,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:36,230 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:36,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686379433] [2021-11-19 13:24:36,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686379433] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:36,231 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:36,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:24:36,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648693500] [2021-11-19 13:24:36,234 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:36,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:24:36,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:36,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:24:36,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:24:36,273 INFO L87 Difference]: Start difference. First operand has 81 states, 76 states have (on average 1.605263157894737) internal successors, (122), 77 states have internal predecessors, (122), 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) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:36,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:36,302 INFO L93 Difference]: Finished difference Result 156 states and 245 transitions. [2021-11-19 13:24:36,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:24:36,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2021-11-19 13:24:36,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:36,312 INFO L225 Difference]: With dead ends: 156 [2021-11-19 13:24:36,312 INFO L226 Difference]: Without dead ends: 28 [2021-11-19 13:24:36,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:24:36,320 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:36,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:36,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-19 13:24:36,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-11-19 13:24:36,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 25 states have (on average 1.12) internal successors, (28), 25 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:36,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2021-11-19 13:24:36,369 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 23 [2021-11-19 13:24:36,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:36,370 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2021-11-19 13:24:36,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:36,370 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2021-11-19 13:24:36,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-19 13:24:36,372 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:36,372 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] [2021-11-19 13:24:36,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:36,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:36,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:36,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash 678882945, now seen corresponding path program 1 times [2021-11-19 13:24:36,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:36,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [948560517] [2021-11-19 13:24:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:36,602 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:36,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:36,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:36,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:24:36,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:36,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:36,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:36,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:36,989 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:37,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:37,074 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:37,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [948560517] [2021-11-19 13:24:37,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [948560517] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:37,079 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:24:37,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-19 13:24:37,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750307001] [2021-11-19 13:24:37,081 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:37,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:24:37,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:37,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:24:37,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:24:37,086 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:24:37,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:37,146 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2021-11-19 13:24:37,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:24:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2021-11-19 13:24:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:37,149 INFO L225 Difference]: With dead ends: 55 [2021-11-19 13:24:37,150 INFO L226 Difference]: Without dead ends: 31 [2021-11-19 13:24:37,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 13:24:37,153 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:37,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 80 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:37,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-11-19 13:24:37,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-11-19 13:24:37,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:37,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2021-11-19 13:24:37,178 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 23 [2021-11-19 13:24:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:37,178 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2021-11-19 13:24:37,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 13:24:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2021-11-19 13:24:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-19 13:24:37,180 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:24:37,180 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:24:37,201 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 13:24:37,402 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:24:37,402 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:24:37,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:24:37,403 INFO L85 PathProgramCache]: Analyzing trace with hash 486147709, now seen corresponding path program 1 times [2021-11-19 13:24:37,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:24:37,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189660335] [2021-11-19 13:24:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:37,404 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:24:37,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:24:37,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:24:37,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:24:37,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:37,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:24:37,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:37,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:37,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:24:37,781 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:24:37,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189660335] [2021-11-19 13:24:37,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189660335] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:24:37,782 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1366405130] [2021-11-19 13:24:37,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:24:37,782 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:24:37,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:24:37,786 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:24:37,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-19 13:24:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:24:38,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 13:24:38,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:24:38,075 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:24:38,075 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:24:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-19 13:24:38,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1366405130] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:24:38,122 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 13:24:38,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5, 5] total 9 [2021-11-19 13:24:38,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175868197] [2021-11-19 13:24:38,123 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:24:38,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:24:38,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:24:38,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:24:38,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:24:38,128 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:38,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:24:38,140 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2021-11-19 13:24:38,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:24:38,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-19 13:24:38,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:24:38,143 INFO L225 Difference]: With dead ends: 31 [2021-11-19 13:24:38,143 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 13:24:38,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-19 13:24:38,147 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:24:38,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:24:38,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 13:24:38,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 13:24:38,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:24:38,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 13:24:38,156 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2021-11-19 13:24:38,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:24:38,156 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 13:24:38,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-19 13:24:38,157 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 13:24:38,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 13:24:38,160 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 13:24:38,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:24:38,379 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-19 13:24:38,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:24:38,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 13:24:38,600 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 8 10) the Hoare annotation is: true [2021-11-19 13:24:38,600 INFO L858 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2021-11-19 13:24:38,600 INFO L858 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2021-11-19 13:24:38,600 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2021-11-19 13:24:38,600 INFO L858 garLoopResultBuilder]: For program point L1505(line 1505) no Hoare annotation was computed. [2021-11-19 13:24:38,600 INFO L861 garLoopResultBuilder]: At program point L1439(lines 1421 1440) the Hoare annotation is: true [2021-11-19 13:24:38,600 INFO L858 garLoopResultBuilder]: For program point L1505-2(line 1505) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L861 garLoopResultBuilder]: At program point L1456(lines 1441 1457) the Hoare annotation is: true [2021-11-19 13:24:38,601 INFO L858 garLoopResultBuilder]: For program point L1357(lines 1357 1377) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L858 garLoopResultBuilder]: For program point L1357-1(lines 1357 1377) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L861 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: true [2021-11-19 13:24:38,601 INFO L858 garLoopResultBuilder]: For program point L1589-1(line 1589) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L858 garLoopResultBuilder]: For program point L1606-2(lines 1606 1613) no Hoare annotation was computed. [2021-11-19 13:24:38,601 INFO L861 garLoopResultBuilder]: At program point L1606-3(lines 1606 1613) the Hoare annotation is: true [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1606-4(lines 1606 1613) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L861 garLoopResultBuilder]: At program point L1590(lines 1586 1591) the Hoare annotation is: true [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1491(lines 1491 1492) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1359(lines 1359 1376) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1343(line 1343) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1343-2(line 1343) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1410(lines 1410 1411) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1427(lines 1427 1436) no Hoare annotation was computed. [2021-11-19 13:24:38,602 INFO L858 garLoopResultBuilder]: For program point L1427-2(lines 1422 1440) no Hoare annotation was computed. [2021-11-19 13:24:38,603 INFO L861 garLoopResultBuilder]: At program point L1510(lines 1497 1511) the Hoare annotation is: true [2021-11-19 13:24:38,603 INFO L858 garLoopResultBuilder]: For program point L1362(lines 1362 1375) no Hoare annotation was computed. [2021-11-19 13:24:38,603 INFO L861 garLoopResultBuilder]: At program point L1478(lines 1462 1479) the Hoare annotation is: true [2021-11-19 13:24:38,603 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 13:24:38,603 INFO L861 garLoopResultBuilder]: At program point L1495(lines 1480 1496) the Hoare annotation is: true [2021-11-19 13:24:38,603 INFO L858 garLoopResultBuilder]: For program point L1611-2(lines 1611 1612) no Hoare annotation was computed. [2021-11-19 13:24:38,603 INFO L861 garLoopResultBuilder]: At program point L1611-3(lines 1611 1612) the Hoare annotation is: true [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1446(lines 1446 1453) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1446-1(lines 1446 1453) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L861 garLoopResultBuilder]: At program point L1347(lines 1338 1350) the Hoare annotation is: true [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1364(lines 1364 1374) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1447-1(lines 1447 1453) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1447-3(lines 1447 1453) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L861 garLoopResultBuilder]: At program point L1447-4(lines 1447 1453) the Hoare annotation is: true [2021-11-19 13:24:38,604 INFO L858 garLoopResultBuilder]: For program point L1596-2(lines 1596 1597) no Hoare annotation was computed. [2021-11-19 13:24:38,604 INFO L861 garLoopResultBuilder]: At program point L1596-3(lines 1596 1597) the Hoare annotation is: true [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1596-4(lines 1596 1597) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1431(lines 1431 1434) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1431-2(lines 1430 1436) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1432(line 1432) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1432-2(line 1432) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1482(lines 1482 1494) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1482-1(lines 1482 1494) no Hoare annotation was computed. [2021-11-19 13:24:38,605 INFO L858 garLoopResultBuilder]: For program point L1449(lines 1449 1450) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1400(lines 1400 1413) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1466-2(lines 1466 1477) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1367(lines 1367 1373) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1400-1(lines 1400 1413) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L861 garLoopResultBuilder]: At program point L1466-3(lines 1466 1477) the Hoare annotation is: true [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1334(lines 1334 1392) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1466-4(lines 1466 1477) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1334-1(lines 1325 1420) no Hoare annotation was computed. [2021-11-19 13:24:38,606 INFO L858 garLoopResultBuilder]: For program point L1615-2(lines 1615 1616) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L861 garLoopResultBuilder]: At program point L1615-3(lines 1615 1616) the Hoare annotation is: true [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1615-4(lines 1615 1616) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1351-1(lines 1351 1385) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1484(lines 1484 1493) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1501-1(lines 1501 1509) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1435-1(line 1435) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L861 garLoopResultBuilder]: At program point L1501-3(lines 1501 1509) the Hoare annotation is: true [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1369(lines 1369 1372) no Hoare annotation was computed. [2021-11-19 13:24:38,607 INFO L858 garLoopResultBuilder]: For program point L1501-4(lines 1501 1509) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L861 garLoopResultBuilder]: At program point L1419(lines 1324 1420) the Hoare annotation is: true [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point L1469(lines 1469 1474) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point L1403(lines 1403 1412) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1371) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point L1387(lines 1387 1391) no Hoare annotation was computed. [2021-11-19 13:24:38,608 INFO L861 garLoopResultBuilder]: At program point L1602(line 1602) the Hoare annotation is: true [2021-11-19 13:24:38,608 INFO L858 garLoopResultBuilder]: For program point L1602-1(line 1602) no Hoare annotation was computed. [2021-11-19 13:24:38,609 INFO L858 garLoopResultBuilder]: For program point L1371(line 1371) no Hoare annotation was computed. [2021-11-19 13:24:38,609 INFO L861 garLoopResultBuilder]: At program point L1338(lines 1338 1350) the Hoare annotation is: true [2021-11-19 13:24:38,609 INFO L858 garLoopResultBuilder]: For program point L1338-2(lines 1335 1392) no Hoare annotation was computed. [2021-11-19 13:24:38,609 INFO L858 garLoopResultBuilder]: For program point L1504(lines 1504 1507) no Hoare annotation was computed. [2021-11-19 13:24:38,609 INFO L858 garLoopResultBuilder]: For program point L1471(lines 1471 1472) no Hoare annotation was computed. [2021-11-19 13:24:38,609 INFO L861 garLoopResultBuilder]: At program point L1620(lines 1592 1621) the Hoare annotation is: true [2021-11-19 13:24:38,612 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-19 13:24:38,614 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 13:24:38,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 01:24:38 BoogieIcfgContainer [2021-11-19 13:24:38,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 13:24:38,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 13:24:38,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 13:24:38,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 13:24:38,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:24:35" (3/4) ... [2021-11-19 13:24:38,626 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 13:24:38,633 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-11-19 13:24:38,642 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 42 nodes and edges [2021-11-19 13:24:38,643 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-11-19 13:24:38,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-19 13:24:38,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 13:24:38,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 13:24:38,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 13:24:38,709 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 13:24:38,710 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 13:24:38,710 INFO L158 Benchmark]: Toolchain (without parser) took 6103.54ms. Allocated memory was 60.8MB in the beginning and 113.2MB in the end (delta: 52.4MB). Free memory was 38.0MB in the beginning and 39.9MB in the end (delta: -1.9MB). Peak memory consumption was 50.5MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,710 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:24:38,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1393.96ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.8MB in the beginning and 52.0MB in the end (delta: -14.2MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.15ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 47.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,712 INFO L158 Benchmark]: Boogie Preprocessor took 78.83ms. Allocated memory is still 81.8MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,712 INFO L158 Benchmark]: RCFGBuilder took 1352.72ms. Allocated memory is still 81.8MB. Free memory was 42.9MB in the beginning and 55.0MB in the end (delta: -12.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,712 INFO L158 Benchmark]: TraceAbstraction took 3056.34ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 54.6MB in the beginning and 47.2MB in the end (delta: 7.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,713 INFO L158 Benchmark]: Witness Printer took 86.97ms. Allocated memory is still 113.2MB. Free memory was 47.2MB in the beginning and 39.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 13:24:38,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 60.8MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1393.96ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 37.8MB in the beginning and 52.0MB in the end (delta: -14.2MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.15ms. Allocated memory is still 81.8MB. Free memory was 52.0MB in the beginning and 47.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.83ms. Allocated memory is still 81.8MB. Free memory was 47.9MB in the beginning and 43.3MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1352.72ms. Allocated memory is still 81.8MB. Free memory was 42.9MB in the beginning and 55.0MB in the end (delta: -12.1MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3056.34ms. Allocated memory was 81.8MB in the beginning and 113.2MB in the end (delta: 31.5MB). Free memory was 54.6MB in the beginning and 47.2MB in the end (delta: 7.4MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 86.97ms. Allocated memory is still 113.2MB. Free memory was 47.2MB in the beginning and 39.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1371]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 234 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 72 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 162 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=81occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 20 LocationsWithAnnotation, 24 PreInvPairs, 44 NumberOfFragments, 20 HoareAnnotationTreeSize, 24 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 20 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 2 NumberOfNonLiveVariables, 544 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1611]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1462]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1615]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1596]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1592]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1606]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1421]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1338]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1324]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1466]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1441]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1480]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1338]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1497]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 13:24:38,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bbc2ee4-e8c8-4243-ae64-4adb438e5396/bin/utaipan-UbGMyvGFUs/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: TRUE