./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/1_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7604f323f01a3c659629a3446d646b5cd5a69c1 ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/1_3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7604f323f01a3c659629a3446d646b5cd5a69c1 ........................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:38,565 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:38,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:38,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:38,602 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:38,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:38,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:38,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:38,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:38,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:38,613 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:38,614 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:38,615 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:38,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:38,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:38,619 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:38,621 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:38,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:38,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:38,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:38,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:38,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:38,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:38,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:38,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:38,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:38,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:38,657 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:38,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:38,658 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:38,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:38,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:38,660 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:38,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:38,663 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:38,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:38,664 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:38,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:38,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:38,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:38,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:38,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:29:38,690 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:38,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:38,691 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:38,692 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:38,692 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:38,692 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:38,692 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:38,692 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:38,693 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:38,693 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:38,693 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:38,693 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:38,693 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:38,694 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:38,694 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:38,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:38,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:38,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:38,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:38,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:38,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:38,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:38,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:38,696 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:38,696 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:38,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:38,697 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:38,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:38,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:38,697 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:38,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:38,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:38,698 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:38,698 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:38,698 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:38,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:38,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:38,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:38,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:38,699 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_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7604f323f01a3c659629a3446d646b5cd5a69c1 [2021-10-11 02:29:39,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:39,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:39,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:39,073 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:39,075 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:39,076 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-10-11 02:29:39,134 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/963c746da/42c4c6e0fbb644d7864ae4104093161c/FLAG1025dddf6 [2021-10-11 02:29:39,557 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:39,558 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i [2021-10-11 02:29:39,565 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/963c746da/42c4c6e0fbb644d7864ae4104093161c/FLAG1025dddf6 [2021-10-11 02:29:39,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/963c746da/42c4c6e0fbb644d7864ae4104093161c [2021-10-11 02:29:39,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:39,943 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:39,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:39,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:39,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:39,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:39" (1/1) ... [2021-10-11 02:29:39,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba140f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:39, skipping insertion in model container [2021-10-11 02:29:39,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:39" (1/1) ... [2021-10-11 02:29:39,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:39,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:40,123 WARN L226 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_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-11 02:29:40,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:40,162 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) [2021-10-11 02:29:40,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1997aedb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:40, skipping insertion in model container [2021-10-11 02:29:40,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:40,163 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:29:40,166 INFO L168 Benchmark]: Toolchain (without parser) took 221.06 ms. Allocated memory is still 111.1 MB. Free memory was 72.6 MB in the beginning and 88.0 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:40,167 INFO L168 Benchmark]: CDTParser took 0.82 ms. Allocated memory is still 111.1 MB. Free memory was 89.2 MB in the beginning and 89.2 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:40,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.33 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 88.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:40,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82 ms. Allocated memory is still 111.1 MB. Free memory was 89.2 MB in the beginning and 89.2 MB in the end (delta: 52.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 218.33 ms. Allocated memory is still 111.1 MB. Free memory was 72.4 MB in the beginning and 88.0 MB in the end (delta: -15.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 32]: 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... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:42,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:42,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:42,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:42,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:42,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:42,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:42,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:42,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:42,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:42,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:42,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:42,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:42,533 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:42,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:42,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:42,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:42,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:42,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:42,543 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:42,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:42,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:42,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:42,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:42,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:42,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:42,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:42,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:42,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:42,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:42,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:42,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:42,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:42,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:42,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:42,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:42,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:42,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:42,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:42,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:42,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:42,571 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:29:42,597 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:42,598 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:42,599 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:42,599 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:42,599 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:42,599 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:42,599 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:42,600 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:42,600 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:42,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:42,601 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:42,601 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:42,601 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:42,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:29:42,602 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:42,603 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:42,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:42,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:42,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:42,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:29:42,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:42,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:42,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:42,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:42,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:42,605 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:29:42,605 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:29:42,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:42,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:42,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:42,606 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_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7604f323f01a3c659629a3446d646b5cd5a69c1 [2021-10-11 02:29:42,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:42,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:42,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:42,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:42,990 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:42,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-regression/1_3.i [2021-10-11 02:29:43,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/2d1349703/ced2fe938ef446938133dfe4b190e5ef/FLAG849cbf990 [2021-10-11 02:29:43,681 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:43,682 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i [2021-10-11 02:29:43,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/2d1349703/ced2fe938ef446938133dfe4b190e5ef/FLAG849cbf990 [2021-10-11 02:29:44,024 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/data/2d1349703/ced2fe938ef446938133dfe4b190e5ef [2021-10-11 02:29:44,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:44,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:44,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:44,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:44,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:44,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66f3b013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44, skipping insertion in model container [2021-10-11 02:29:44,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:44,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:44,243 WARN L226 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_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-11 02:29:44,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:44,277 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:29:44,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:44,284 WARN L226 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_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-11 02:29:44,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:44,318 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:44,348 WARN L226 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_979bc884-b15d-4a33-bfa6-91febb3debbf/sv-benchmarks/c/ldv-regression/1_3.i[285,298] [2021-10-11 02:29:44,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:44,369 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:44,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44 WrapperNode [2021-10-11 02:29:44,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:44,371 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:44,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:44,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:44,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,388 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,408 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:44,408 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:44,408 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:44,409 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:44,417 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... [2021-10-11 02:29:44,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:44,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:44,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:44,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:44,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:44,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:29:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:29:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:29:44,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:44,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:44,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:29:44,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:44,930 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 02:29:44,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:44 BoogieIcfgContainer [2021-10-11 02:29:44,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:44,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:44,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:44,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:44,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:44" (1/3) ... [2021-10-11 02:29:44,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446ceb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:44, skipping insertion in model container [2021-10-11 02:29:44,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:44" (2/3) ... [2021-10-11 02:29:44,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446ceb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:44, skipping insertion in model container [2021-10-11 02:29:44,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:44" (3/3) ... [2021-10-11 02:29:44,939 INFO L111 eAbstractionObserver]: Analyzing ICFG 1_3.i [2021-10-11 02:29:44,980 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:45,003 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:29:45,014 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:29:45,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:45,053 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:45,053 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:45,053 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:45,053 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:45,054 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:45,054 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:45,054 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:45,069 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-10-11 02:29:45,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:29:45,073 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:45,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:29:45,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:45,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:45,081 INFO L82 PathProgramCache]: Analyzing trace with hash 889476007, now seen corresponding path program 1 times [2021-10-11 02:29:45,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:45,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [518922459] [2021-10-11 02:29:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:29:45,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-11 02:29:45,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:29:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-11 02:29:45,453 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 35 [2021-10-11 02:29:45,457 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:29:45,480 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:29:45,483 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:29:45,483 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:30, output treesize:38 [2021-10-11 02:29:45,598 INFO L348 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:29:45,599 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 22 [2021-10-11 02:29:45,602 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:29:45,605 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:29:45,606 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:29:45,606 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:9 [2021-10-11 02:29:45,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:29:45,624 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:29:45,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [518922459] [2021-10-11 02:29:45,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:29:45,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:29:45,626 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895059851] [2021-10-11 02:29:45,630 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:29:45,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:29:45,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:29:45,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:29:45,651 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2021-10-11 02:29:45,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:29:45,829 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-11 02:29:45,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:29:45,832 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2021-10-11 02:29:45,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:29:45,839 INFO L225 Difference]: With dead ends: 27 [2021-10-11 02:29:45,855 INFO L226 Difference]: Without dead ends: 10 [2021-10-11 02:29:45,858 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:29:45,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-11 02:29:45,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-11 02:29:45,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-10-11 02:29:45,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 9 transitions. [2021-10-11 02:29:45,918 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 9 transitions. Word has length 6 [2021-10-11 02:29:45,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:29:45,918 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 9 transitions. [2021-10-11 02:29:45,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:29:45,919 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-10-11 02:29:45,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:29:45,919 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:29:45,919 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:29:46,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:29:46,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:29:46,144 INFO L82 PathProgramCache]: Analyzing trace with hash -1570200632, now seen corresponding path program 1 times [2021-10-11 02:29:46,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:29:46,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590671429] [2021-10-11 02:29:46,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:46,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:29:46,281 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:29:46,314 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:29:46,314 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:29:46,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:29:46,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:46 BoogieIcfgContainer [2021-10-11 02:29:46,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:46,548 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:46,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:46,548 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:46,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:44" (3/4) ... [2021-10-11 02:29:46,553 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:29:46,628 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_979bc884-b15d-4a33-bfa6-91febb3debbf/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:46,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:46,629 INFO L168 Benchmark]: Toolchain (without parser) took 2598.85 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 42.5 MB in the beginning and 35.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 34.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:46,630 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 62.9 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:46,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.67 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 45.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:46,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 62.9 MB. Free memory was 45.3 MB in the beginning and 43.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:46,631 INFO L168 Benchmark]: Boogie Preprocessor took 26.68 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 42.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:46,632 INFO L168 Benchmark]: RCFGBuilder took 495.74 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 28.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:46,632 INFO L168 Benchmark]: TraceAbstraction took 1614.77 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 27.9 MB in the beginning and 37.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:46,633 INFO L168 Benchmark]: Witness Printer took 80.45 ms. Allocated memory is still 90.2 MB. Free memory was 37.3 MB in the beginning and 35.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:46,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 62.9 MB. Free memory is still 43.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 336.67 ms. Allocated memory is still 62.9 MB. Free memory was 42.4 MB in the beginning and 45.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 62.9 MB. Free memory was 45.3 MB in the beginning and 43.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.68 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 42.5 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 495.74 ms. Allocated memory is still 62.9 MB. Free memory was 42.2 MB in the beginning and 28.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1614.77 ms. Allocated memory was 62.9 MB in the beginning and 90.2 MB in the end (delta: 27.3 MB). Free memory was 27.9 MB in the beginning and 37.3 MB in the end (delta: -9.4 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 80.45 ms. Allocated memory is still 90.2 MB. Free memory was 37.3 MB in the beginning and 35.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L52] rr * ptr1 = 0; [L32] rr * r = (rr *)malloc(sizeof *r); [L33] r -> state = 0 [L34] return r; [L39] rr * r = getrr(); [L40] r -> state = 1 [L41] return r; [L53] ptr1 = getPtr() [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L47] ptr -> state = 2 [L46] EXPR ptr -> state [L46] (ptr -> state == 1) ? (0) : __blast_assert () [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 260 SizeOfPredicates, 17 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! Received shutdown request...