./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 b909735efeb9bc00b7df4035956af92a753b9076 ..................................................................................................................................................................................................................................................................................................... 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 b909735efeb9bc00b7df4035956af92a753b9076 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:37,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:37,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:37,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:37,847 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:37,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:37,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:37,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:37,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:37,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:37,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:37,875 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:37,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:37,877 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:37,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:37,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:37,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:37,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:37,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:37,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:37,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:37,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:37,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:37,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:37,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:37,923 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:37,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:37,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:37,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:37,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:37,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:37,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:37,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:37,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:37,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:37,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:37,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:37,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:37,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:37,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:37,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:37,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:37,990 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:37,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:37,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:37,992 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:37,992 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:37,992 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:38,003 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:38,003 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:38,007 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:38,007 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:38,008 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:38,009 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:38,009 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:38,009 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:38,009 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:38,010 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:38,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:38,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:38,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:38,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:38,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:38,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:38,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:38,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:38,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:38,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:38,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:38,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:38,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:38,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:38,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:38,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:38,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:38,018 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:38,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:38,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:38,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:38,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:38,019 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2021-10-11 02:27:38,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:38,323 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:38,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:38,327 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:38,329 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:38,330 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/verifythis/elimination_max.c [2021-10-11 02:27:38,418 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/24bf77d8e/9721b7815a384e779a7dbd57ba43cd8d/FLAG23a44ae12 [2021-10-11 02:27:38,952 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:38,952 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c [2021-10-11 02:27:38,959 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/24bf77d8e/9721b7815a384e779a7dbd57ba43cd8d/FLAG23a44ae12 [2021-10-11 02:27:39,321 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/24bf77d8e/9721b7815a384e779a7dbd57ba43cd8d [2021-10-11 02:27:39,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:39,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:39,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:39,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:39,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:39,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@383c23c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39, skipping insertion in model container [2021-10-11 02:27:39,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:39,361 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:39,501 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-10-11 02:27:39,519 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:39,535 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:39,550 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-10-11 02:27:39,558 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:39,575 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:39,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39 WrapperNode [2021-10-11 02:27:39,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:39,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:39,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:39,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:39,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,597 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:39,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:39,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:39,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:39,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... [2021-10-11 02:27:39,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:39,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:39,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:39,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:39,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 02:27:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:27:39,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:39,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:27:39,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:40,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:40,407 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 02:27:40,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:40 BoogieIcfgContainer [2021-10-11 02:27:40,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:40,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:40,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:40,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:40,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:39" (1/3) ... [2021-10-11 02:27:40,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f93d145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:40, skipping insertion in model container [2021-10-11 02:27:40,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:39" (2/3) ... [2021-10-11 02:27:40,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f93d145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:40, skipping insertion in model container [2021-10-11 02:27:40,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:40" (3/3) ... [2021-10-11 02:27:40,421 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2021-10-11 02:27:40,438 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:40,441 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:27:40,452 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:27:40,481 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:40,481 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:40,481 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:40,481 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:40,482 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:40,482 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:40,482 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:40,482 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:40,498 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:27:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 02:27:40,504 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:40,505 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 02:27:40,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:40,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:40,512 INFO L82 PathProgramCache]: Analyzing trace with hash 3597343, now seen corresponding path program 1 times [2021-10-11 02:27:40,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:40,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652427502] [2021-10-11 02:27:40,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:40,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:40,746 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 02:27:40,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652427502] [2021-10-11 02:27:40,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:40,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:27:40,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625025468] [2021-10-11 02:27:40,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:40,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:40,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:40,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:40,794 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2021-10-11 02:27:40,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:40,857 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2021-10-11 02:27:40,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:27:40,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-10-11 02:27:40,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:40,866 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:27:40,871 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:40,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:40,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:40,901 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-10-11 02:27:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:40,901 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:40,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:40,902 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:40,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:40,905 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:40,923 INFO L258 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) ((as const (Array Int Int)) 0)) [2021-10-11 02:27:40,923 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,924 INFO L262 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,924 INFO L262 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,924 INFO L262 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,924 INFO L262 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,924 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:40,925 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-11 02:27:40,925 INFO L258 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) ((as const (Array Int Int)) 0))) [2021-10-11 02:27:40,925 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:40,925 INFO L262 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-10-11 02:27:40,926 INFO L262 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2021-10-11 02:27:40,933 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:27:40,938 INFO L168 Benchmark]: Toolchain (without parser) took 1611.21 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 63.5 MB in the beginning and 101.5 MB in the end (delta: -38.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:40,939 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:40,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.74 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 53.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:40,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.71 ms. Allocated memory is still 100.7 MB. Free memory was 53.3 MB in the beginning and 51.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:40,942 INFO L168 Benchmark]: Boogie Preprocessor took 30.87 ms. Allocated memory is still 100.7 MB. Free memory was 51.6 MB in the beginning and 50.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:40,943 INFO L168 Benchmark]: RCFGBuilder took 756.82 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 50.3 MB in the beginning and 88.3 MB in the end (delta: -38.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:40,944 INFO L168 Benchmark]: TraceAbstraction took 523.84 ms. Allocated memory is still 134.2 MB. Free memory was 87.9 MB in the beginning and 101.5 MB in the end (delta: -13.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:40,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 100.7 MB. Free memory is still 80.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.74 ms. Allocated memory is still 100.7 MB. Free memory was 63.3 MB in the beginning and 53.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.71 ms. Allocated memory is still 100.7 MB. Free memory was 53.3 MB in the beginning and 51.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.87 ms. Allocated memory is still 100.7 MB. Free memory was 51.6 MB in the beginning and 50.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 756.82 ms. Allocated memory was 100.7 MB in the beginning and 134.2 MB in the end (delta: 33.6 MB). Free memory was 50.3 MB in the beginning and 88.3 MB in the end (delta: -38.0 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 523.84 ms. Allocated memory is still 134.2 MB. Free memory was 87.9 MB in the beginning and 101.5 MB in the end (delta: -13.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) 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 02:27:43,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:43,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:43,770 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:43,771 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:43,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:43,780 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:43,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:43,788 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:43,796 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:43,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:43,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:43,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:43,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:43,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:43,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:43,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:43,816 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:43,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:43,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:43,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:43,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:43,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:43,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:43,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:43,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:43,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:43,843 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:43,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:43,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:43,846 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:43,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:43,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:43,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:43,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:43,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:43,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:43,852 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:43,852 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:43,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:43,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:43,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:43,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:43,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:43,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:43,902 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:43,902 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:43,902 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:43,902 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:43,903 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:43,903 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:43,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:43,906 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:43,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:43,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:43,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:43,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:43,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:43,907 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:43,907 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:43,908 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:43,908 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:43,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:43,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:43,909 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:43,909 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:43,909 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:43,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:43,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:43,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:43,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:43,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:43,911 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:43,911 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:43,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:43,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:43,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:43,912 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b909735efeb9bc00b7df4035956af92a753b9076 [2021-10-11 02:27:44,332 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:44,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:44,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:44,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:44,371 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:44,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/verifythis/elimination_max.c [2021-10-11 02:27:44,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/900ca9972/5f1375dbefab48aea15b1d9aff58e564/FLAGf5228b603 [2021-10-11 02:27:45,150 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:45,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c [2021-10-11 02:27:45,162 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/900ca9972/5f1375dbefab48aea15b1d9aff58e564/FLAGf5228b603 [2021-10-11 02:27:45,508 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/data/900ca9972/5f1375dbefab48aea15b1d9aff58e564 [2021-10-11 02:27:45,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:45,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:45,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:45,524 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:45,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:45,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7103c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45, skipping insertion in model container [2021-10-11 02:27:45,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:45,564 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:45,776 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-10-11 02:27:45,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:45,816 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:45,832 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_28dbb8fd-54ad-45e8-ab93-a0321d50d336/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-10-11 02:27:45,841 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:45,860 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:45,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45 WrapperNode [2021-10-11 02:27:45,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:45,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:45,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:45,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:45,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:45,905 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:45,905 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:45,905 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:45,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,931 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... [2021-10-11 02:27:45,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:45,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:45,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:45,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:45,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 02:27:46,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:27:46,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:27:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:46,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:46,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:46,623 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:46,623 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-11 02:27:46,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:46 BoogieIcfgContainer [2021-10-11 02:27:46,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:46,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:46,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:46,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:46,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:45" (1/3) ... [2021-10-11 02:27:46,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:46, skipping insertion in model container [2021-10-11 02:27:46,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:45" (2/3) ... [2021-10-11 02:27:46,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689632 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:46, skipping insertion in model container [2021-10-11 02:27:46,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:46" (3/3) ... [2021-10-11 02:27:46,637 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2021-10-11 02:27:46,654 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:46,659 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:27:46,672 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:27:46,736 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:46,737 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:46,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:46,737 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:46,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:46,738 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:46,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:46,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:46,753 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2021-10-11 02:27:46,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:27:46,759 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:46,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:46,761 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:46,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:46,768 INFO L82 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2021-10-11 02:27:46,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:46,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1459144235] [2021-10-11 02:27:46,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 02:27:46,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:46,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:27:46,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:47,029 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 02:27:47,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:47,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1459144235] [2021-10-11 02:27:47,033 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:47,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:47,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651315557] [2021-10-11 02:27:47,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:47,053 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:47,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:47,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:47,073 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2021-10-11 02:27:47,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:47,095 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2021-10-11 02:27:47,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:47,098 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 02:27:47,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:47,109 INFO L225 Difference]: With dead ends: 45 [2021-10-11 02:27:47,109 INFO L226 Difference]: Without dead ends: 20 [2021-10-11 02:27:47,113 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:47,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-10-11 02:27:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-10-11 02:27:47,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-10-11 02:27:47,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-10-11 02:27:47,154 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2021-10-11 02:27:47,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:47,155 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-10-11 02:27:47,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:47,156 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-10-11 02:27:47,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:27:47,157 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:47,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:47,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:47,374 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:47,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:47,375 INFO L82 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2021-10-11 02:27:47,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:47,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2105417676] [2021-10-11 02:27:47,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/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 02:27:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:47,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-11 02:27:47,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:47,839 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:27:47,842 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:27:48,062 WARN L197 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 23 [2021-10-11 02:27:48,182 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:27:48,190 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:27:48,211 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2021-10-11 02:27:48,270 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 02:27:48,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:48,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2105417676] [2021-10-11 02:27:48,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:48,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-10-11 02:27:48,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537617729] [2021-10-11 02:27:48,273 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-10-11 02:27:48,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:48,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-11 02:27:48,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:27:48,276 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 10 states. [2021-10-11 02:27:49,082 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 29 [2021-10-11 02:27:49,410 WARN L197 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 26 [2021-10-11 02:27:49,716 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 29 [2021-10-11 02:27:50,008 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-10-11 02:27:50,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:50,046 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2021-10-11 02:27:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-11 02:27:50,047 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2021-10-11 02:27:50,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:50,050 INFO L225 Difference]: With dead ends: 42 [2021-10-11 02:27:50,050 INFO L226 Difference]: Without dead ends: 38 [2021-10-11 02:27:50,051 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2021-10-11 02:27:50,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-11 02:27:50,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2021-10-11 02:27:50,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-11 02:27:50,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2021-10-11 02:27:50,060 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 11 [2021-10-11 02:27:50,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:50,060 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2021-10-11 02:27:50,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-10-11 02:27:50,061 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2021-10-11 02:27:50,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 02:27:50,062 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:50,062 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:50,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:50,278 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:50,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:50,279 INFO L82 PathProgramCache]: Analyzing trace with hash -138608584, now seen corresponding path program 1 times [2021-10-11 02:27:50,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:50,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [340198072] [2021-10-11 02:27:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:50,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-11 02:27:50,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:51,025 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:27:51,027 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2021-10-11 02:27:51,354 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-10-11 02:27:51,515 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:27:51,519 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-10-11 02:27:51,522 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2021-10-11 02:27:51,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:51,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:51,998 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2021-10-11 02:27:51,999 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,726 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-10-11 02:27:52,727 INFO L348 Elim1Store]: treesize reduction 17, result has 83.0 percent of original size [2021-10-11 02:27:52,728 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 90 [2021-10-11 02:27:52,741 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2021-10-11 02:27:52,742 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:27:52,743 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,748 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2021-10-11 02:27:52,749 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,750 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,751 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,753 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,756 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,760 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,762 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,764 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,765 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,778 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,781 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,783 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2021-10-11 02:27:52,784 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,785 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,793 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,798 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,799 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,801 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-10-11 02:27:52,807 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-10-11 02:27:53,032 WARN L197 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 22 [2021-10-11 02:27:53,033 INFO L625 ElimStorePlain]: treesize reduction 61, result has 34.4 percent of original size [2021-10-11 02:27:53,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [340198072] [2021-10-11 02:27:53,042 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-10-11 02:27:53,042 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [208423534] [2021-10-11 02:27:53,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_28dbb8fd-54ad-45e8-ab93-a0321d50d336/bin/utaipan-WLngWcDbfI/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:53,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:27:53,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:53,189 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-10-11 02:27:53,190 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-11 02:27:53,194 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-11 02:27:53,195 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-10-11 02:27:53,195 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:7, output treesize:6 [2021-10-11 02:27:53,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:27:53,363 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:27:53,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:53,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:53,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:27:53,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479431921] [2021-10-11 02:27:53,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:27:53,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:53,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:27:53,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2021-10-11 02:27:53,366 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 5 states. [2021-10-11 02:27:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:53,479 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2021-10-11 02:27:53,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:27:53,479 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 02:27:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:53,480 INFO L225 Difference]: With dead ends: 28 [2021-10-11 02:27:53,480 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:53,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2021-10-11 02:27:53,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:53,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:53,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:53,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:53,481 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-11 02:27:53,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:53,482 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:53,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:27:53,482 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:53,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:53,886 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:53,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:54,083 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 21 [2021-10-11 02:27:54,114 INFO L258 CegarLoopResult]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (_ bv1 32) ULTIMATE.start_assume_abort_if_not_~cond) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2021-10-11 02:27:54,114 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,114 INFO L262 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,114 INFO L262 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L11-3(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L11-4(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:54,115 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:27:54,116 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-10-11 02:27:54,116 INFO L262 CegarLoopResult]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2021-10-11 02:27:54,116 INFO L258 CegarLoopResult]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (bvslt ULTIMATE.start_main_~n~0 (_ bv1073741824 32)) (bvsge ULTIMATE.start_main_~n~0 (_ bv0 32)) (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= (select |#memory_int| ULTIMATE.start_main_~a~0.base) .cse0) (= (_ bv0 32) |ULTIMATE.start_main_#t~malloc9.offset|) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2021-10-11 02:27:54,116 INFO L262 CegarLoopResult]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2021-10-11 02:27:54,116 INFO L262 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2021-10-11 02:27:54,116 INFO L262 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-10-11 02:27:54,117 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:54,117 INFO L262 CegarLoopResult]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2021-10-11 02:27:54,117 INFO L265 CegarLoopResult]: At program point L50(lines 16 51) the Hoare annotation is: true [2021-10-11 02:27:54,117 INFO L262 CegarLoopResult]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-10-11 02:27:54,118 INFO L262 CegarLoopResult]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2021-10-11 02:27:54,118 INFO L262 CegarLoopResult]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-10-11 02:27:54,124 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:796) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:240) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-11 02:27:54,129 INFO L168 Benchmark]: Toolchain (without parser) took 8608.53 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 37.5 MB in the beginning and 37.8 MB in the end (delta: -362.2 kB). Peak memory consumption was 35.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:54,129 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 58.7 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:54,130 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 26.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:54,131 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.68 ms. Allocated memory is still 58.7 MB. Free memory was 26.6 MB in the beginning and 25.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:54,132 INFO L168 Benchmark]: Boogie Preprocessor took 31.91 ms. Allocated memory is still 58.7 MB. Free memory was 25.0 MB in the beginning and 23.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:54,133 INFO L168 Benchmark]: RCFGBuilder took 688.31 ms. Allocated memory is still 58.7 MB. Free memory was 23.7 MB in the beginning and 27.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:54,134 INFO L168 Benchmark]: TraceAbstraction took 7499.21 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 26.6 MB in the beginning and 37.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:54,138 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 58.7 MB. Free memory is still 40.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 338.19 ms. Allocated memory is still 58.7 MB. Free memory was 37.3 MB in the beginning and 26.8 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.68 ms. Allocated memory is still 58.7 MB. Free memory was 26.6 MB in the beginning and 25.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.91 ms. Allocated memory is still 58.7 MB. Free memory was 25.0 MB in the beginning and 23.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 688.31 ms. Allocated memory is still 58.7 MB. Free memory was 23.7 MB in the beginning and 27.0 MB in the end (delta: -3.3 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 7499.21 ms. Allocated memory was 58.7 MB in the beginning and 92.3 MB in the end (delta: 33.6 MB). Free memory was 26.6 MB in the beginning and 37.8 MB in the end (delta: -11.2 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...