./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test_address.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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_address.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/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 ed71df2cc0a954c54c93d85972651abf7fd361d6 ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:10,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:10,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:10,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:10,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:10,737 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:10,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:10,746 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:10,749 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:10,761 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:10,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:10,765 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:10,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:10,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:10,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:10,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:10,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:10,776 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:10,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:10,791 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:10,794 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:10,795 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:10,800 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:10,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:10,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:10,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:10,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:10,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:10,808 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:10,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:10,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:10,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:10,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:10,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:10,817 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:10,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:10,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:10,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:10,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:10,819 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:10,820 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:10,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:10,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:10,867 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:10,868 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:10,868 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:10,869 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:10,869 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:10,869 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:10,869 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:10,869 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:10,870 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:10,870 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:10,870 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:10,873 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:10,873 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:10,874 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:10,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:10,875 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:10,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:10,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:10,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:10,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:10,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:10,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:10,877 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:10,877 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:10,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:10,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:10,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:10,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:10,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:10,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:10,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:10,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:10,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:10,882 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:10,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:10,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:10,884 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:10,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:10,884 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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed71df2cc0a954c54c93d85972651abf7fd361d6 [2021-10-11 02:27:11,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:11,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:11,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:11,247 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:11,248 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:11,249 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/ldv-regression/test_address.c [2021-10-11 02:27:11,320 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/data/b07ce67d7/b169697e0ab74a469c0bd03befc1da01/FLAGaf89c22cf [2021-10-11 02:27:11,835 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:11,836 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/sv-benchmarks/c/ldv-regression/test_address.c [2021-10-11 02:27:11,842 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/data/b07ce67d7/b169697e0ab74a469c0bd03befc1da01/FLAGaf89c22cf [2021-10-11 02:27:12,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/data/b07ce67d7/b169697e0ab74a469c0bd03befc1da01 [2021-10-11 02:27:12,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:12,213 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:12,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:12,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:12,224 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:12,225 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa8dc2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12, skipping insertion in model container [2021-10-11 02:27:12,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:12,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:12,388 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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/sv-benchmarks/c/ldv-regression/test_address.c[293,306] [2021-10-11 02:27:12,410 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:12,428 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:12,441 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_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/sv-benchmarks/c/ldv-regression/test_address.c[293,306] [2021-10-11 02:27:12,444 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:12,459 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:12,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12 WrapperNode [2021-10-11 02:27:12,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:12,461 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:12,461 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:12,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:12,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,477 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,491 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:12,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:12,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:12,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:12,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... [2021-10-11 02:27:12,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:12,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:12,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:12,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:12,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/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 02:27:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:12,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:12,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:27:12,869 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:12,869 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-11 02:27:12,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:12 BoogieIcfgContainer [2021-10-11 02:27:12,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:12,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:12,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:12,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:12,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:12" (1/3) ... [2021-10-11 02:27:12,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5e2e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:12, skipping insertion in model container [2021-10-11 02:27:12,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:12" (2/3) ... [2021-10-11 02:27:12,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c5e2e10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:12, skipping insertion in model container [2021-10-11 02:27:12,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:12" (3/3) ... [2021-10-11 02:27:12,901 INFO L111 eAbstractionObserver]: Analyzing ICFG test_address.c [2021-10-11 02:27:12,925 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:12,929 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:12,957 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:12,983 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:12,984 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:12,984 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:12,984 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:12,984 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:12,985 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:12,985 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:12,985 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:12,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2021-10-11 02:27:13,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-11 02:27:13,004 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:13,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-11 02:27:13,006 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:13,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:13,018 INFO L82 PathProgramCache]: Analyzing trace with hash 47315, now seen corresponding path program 1 times [2021-10-11 02:27:13,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:13,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666015333] [2021-10-11 02:27:13,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:13,226 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 02:27:13,227 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666015333] [2021-10-11 02:27:13,228 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:13,228 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:13,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285557058] [2021-10-11 02:27:13,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:27:13,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:13,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:27:13,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:13,253 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2021-10-11 02:27:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:13,270 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2021-10-11 02:27:13,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:27:13,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-10-11 02:27:13,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:13,280 INFO L225 Difference]: With dead ends: 8 [2021-10-11 02:27:13,280 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:13,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:27:13,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:13,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:13,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:13,313 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2021-10-11 02:27:13,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:13,313 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:13,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:27:13,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:13,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:13,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:13,316 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:13,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:13,321 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:13,322 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-11 02:27:13,322 INFO L262 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2021-10-11 02:27:13,322 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:27:13,322 INFO L262 CegarLoopResult]: For program point L5(lines 18 21) no Hoare annotation was computed. [2021-10-11 02:27:13,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:13 BoogieIcfgContainer [2021-10-11 02:27:13,328 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:13,329 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:13,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:13,330 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:13,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:12" (3/4) ... [2021-10-11 02:27:13,343 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:27:13,355 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-11 02:27:13,355 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 02:27:13,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:27:13,356 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:13,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c22b7c3-efae-475a-8dca-d78a5ae5dc9a/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:13,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:13,394 INFO L168 Benchmark]: Toolchain (without parser) took 1179.47 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 87.5 MB in the beginning and 117.1 MB in the end (delta: -29.6 MB). Peak memory consumption was 31.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,395 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:13,396 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.76 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 92.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.10 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 91.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,404 INFO L168 Benchmark]: Boogie Preprocessor took 20.26 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 90.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:13,405 INFO L168 Benchmark]: RCFGBuilder took 358.96 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 76.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,405 INFO L168 Benchmark]: TraceAbstraction took 454.60 ms. Allocated memory is still 117.4 MB. Free memory was 76.2 MB in the beginning and 58.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,406 INFO L168 Benchmark]: Witness Printer took 62.48 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 58.0 MB in the beginning and 117.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:13,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 117.4 MB. Free memory is still 71.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 239.76 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 92.3 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.10 ms. Allocated memory is still 117.4 MB. Free memory was 92.3 MB in the beginning and 91.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.26 ms. Allocated memory is still 117.4 MB. Free memory was 91.1 MB in the beginning and 90.1 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 358.96 ms. Allocated memory is still 117.4 MB. Free memory was 90.1 MB in the beginning and 76.6 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 454.60 ms. Allocated memory is still 117.4 MB. Free memory was 76.2 MB in the beginning and 58.0 MB in the end (delta: 18.2 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Witness Printer took 62.48 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 58.0 MB in the beginning and 117.1 MB in the end (delta: -59.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...