./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs --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 63816408f16166958351bc134d9ad3d8551cdcd0 ........................................................................................................................................................................................................................................................................................................................................................... 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_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs --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 63816408f16166958351bc134d9ad3d8551cdcd0 ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:58:15,276 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:58:15,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:58:15,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:58:15,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:58:15,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:58:15,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:58:15,327 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:58:15,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:58:15,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:58:15,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:58:15,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:58:15,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:58:15,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:58:15,341 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:58:15,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:58:15,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:58:15,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:58:15,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:58:15,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:58:15,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:58:15,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:58:15,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:58:15,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:58:15,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:58:15,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:58:15,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:58:15,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:58:15,386 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:58:15,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:58:15,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:58:15,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:58:15,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:58:15,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:58:15,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:58:15,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:58:15,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:58:15,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:58:15,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:58:15,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:58:15,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:58:15,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:58:15,436 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:58:15,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:58:15,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:58:15,449 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:58:15,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:58:15,450 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:58:15,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:58:15,450 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:58:15,451 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:58:15,451 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:58:15,451 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:58:15,452 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:58:15,452 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:58:15,452 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:58:15,453 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:58:15,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:58:15,454 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:58:15,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:58:15,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:58:15,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:58:15,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:58:15,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:58:15,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:58:15,456 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:58:15,457 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:58:15,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:58:15,457 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:58:15,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:58:15,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:58:15,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:58:15,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:15,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:58:15,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:58:15,461 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:58:15,461 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:58:15,461 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:58:15,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:58:15,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:58:15,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:58:15,464 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_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63816408f16166958351bc134d9ad3d8551cdcd0 [2021-10-16 02:58:15,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:58:15,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:58:15,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:58:15,864 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:58:15,866 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:58:15,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:15,950 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/74ad30d47/22423c8deb2a47b2a646eff56cba29a1/FLAGee26cfff2 [2021-10-16 02:58:16,498 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:58:16,498 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:16,506 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/74ad30d47/22423c8deb2a47b2a646eff56cba29a1/FLAGee26cfff2 [2021-10-16 02:58:16,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/74ad30d47/22423c8deb2a47b2a646eff56cba29a1 [2021-10-16 02:58:16,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:58:16,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:58:16,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:16,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:58:16,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:58:16,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:16" (1/1) ... [2021-10-16 02:58:16,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4965f3a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:16, skipping insertion in model container [2021-10-16 02:58:16,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:16" (1/1) ... [2021-10-16 02:58:16,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:58:16,869 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:58:17,082 WARN L228 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_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-10-16 02:58:17,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:17,106 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:58:17,122 WARN L228 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_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-10-16 02:58:17,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:17,145 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:58:17,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17 WrapperNode [2021-10-16 02:58:17,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:17,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:17,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:58:17,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:58:17,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,189 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:17,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:58:17,193 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:58:17,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:58:17,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,212 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:58:17,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:58:17,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:58:17,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:58:17,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (1/1) ... [2021-10-16 02:58:17,233 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:17,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:58:17,278 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:58:17,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:58:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:58:17,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:58:17,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:58:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:58:17,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:58:17,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:58:17,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:58:17,746 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-16 02:58:17,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:17 BoogieIcfgContainer [2021-10-16 02:58:17,750 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:58:17,752 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:58:17,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:58:17,757 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:58:17,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:58:16" (1/3) ... [2021-10-16 02:58:17,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4732e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:17, skipping insertion in model container [2021-10-16 02:58:17,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:17" (2/3) ... [2021-10-16 02:58:17,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f4732e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:17, skipping insertion in model container [2021-10-16 02:58:17,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:17" (3/3) ... [2021-10-16 02:58:17,773 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:17,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:58:17,795 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:58:17,853 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:58:17,862 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:58:17,862 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:58:17,892 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:17,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-16 02:58:17,898 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:17,898 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-16 02:58:17,899 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:17,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:17,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1916652, now seen corresponding path program 1 times [2021-10-16 02:58:17,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:58:17,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505724594] [2021-10-16 02:58:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:17,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:58:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:18,273 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:58:18,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505724594] [2021-10-16 02:58:18,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1505724594] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:58:18,277 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:58:18,278 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 02:58:18,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675001485] [2021-10-16 02:58:18,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:58:18,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:58:18,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:58:18,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:58:18,310 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:18,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:58:18,405 INFO L93 Difference]: Finished difference Result 17 states and 20 transitions. [2021-10-16 02:58:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:58:18,407 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-16 02:58:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:58:18,431 INFO L225 Difference]: With dead ends: 17 [2021-10-16 02:58:18,432 INFO L226 Difference]: Without dead ends: 9 [2021-10-16 02:58:18,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 46.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-16 02:58:18,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-16 02:58:18,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2021-10-16 02:58:18,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:18,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-16 02:58:18,465 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-16 02:58:18,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:58:18,466 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-16 02:58:18,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:18,467 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-16 02:58:18,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-16 02:58:18,468 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:18,468 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-10-16 02:58:18,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:58:18,469 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:18,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1269628337, now seen corresponding path program 1 times [2021-10-16 02:58:18,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:58:18,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322933819] [2021-10-16 02:58:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:18,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:58:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:18,583 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:18,583 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:58:18,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322933819] [2021-10-16 02:58:18,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322933819] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:58:18,585 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929670252] [2021-10-16 02:58:18,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:18,585 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:58:18,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:58:18,600 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:58:18,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:58:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:18,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-16 02:58:18,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:18,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:18,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:19,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:19,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929670252] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:58:19,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1704204327] [2021-10-16 02:58:19,119 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2021-10-16 02:58:19,119 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:58:19,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:58:19,132 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:58:19,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:58:19,175 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,178 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:58:19,179 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,180 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:58:19,182 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:58:19,183 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,185 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:58:19,192 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 165 [2021-10-16 02:58:19,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:58:19,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:58:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:58:19,361 INFO L354 Elim1Store]: treesize reduction 68, result has 13.9 percent of original size [2021-10-16 02:58:19,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 42 [2021-10-16 02:58:19,368 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,377 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:58:19,378 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,381 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-10-16 02:58:19,382 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:58:19,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:19,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,485 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:58:19,492 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 146 [2021-10-16 02:58:19,493 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:58:19,493 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:162, output treesize:146 [2021-10-16 02:58:19,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:58:19,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:58:19,720 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#length_12| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-10-16 02:58:19,724 INFO L168 Benchmark]: Toolchain (without parser) took 2893.36 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 52.8 MB in the beginning and 45.6 MB in the end (delta: 7.3 MB). Peak memory consumption was 27.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:19,725 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 69.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:19,726 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.85 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 66.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:19,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 64.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:19,729 INFO L168 Benchmark]: Boogie Preprocessor took 28.12 ms. Allocated memory is still 90.2 MB. Free memory was 64.8 MB in the beginning and 63.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:19,729 INFO L168 Benchmark]: RCFGBuilder took 528.74 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 51.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:19,730 INFO L168 Benchmark]: TraceAbstraction took 1970.96 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.3 MB in the beginning and 45.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:19,741 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 90.2 MB. Free memory is still 69.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 313.85 ms. Allocated memory is still 90.2 MB. Free memory was 52.6 MB in the beginning and 66.3 MB in the end (delta: -13.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.09 ms. Allocated memory is still 90.2 MB. Free memory was 66.3 MB in the beginning and 64.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.12 ms. Allocated memory is still 90.2 MB. Free memory was 64.8 MB in the beginning and 63.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 528.74 ms. Allocated memory is still 90.2 MB. Free memory was 63.6 MB in the beginning and 51.8 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1970.96 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 51.3 MB in the beginning and 45.6 MB in the end (delta: 5.8 MB). Peak memory consumption was 27.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#length_12| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#length_12|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:58:19,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:58:22,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:58:22,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:58:22,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:58:22,741 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:58:22,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:58:22,749 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:58:22,752 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:58:22,755 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:58:22,756 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:58:22,758 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:58:22,760 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:58:22,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:58:22,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:58:22,765 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:58:22,767 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:58:22,768 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:58:22,770 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:58:22,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:58:22,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:58:22,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:58:22,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:58:22,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:58:22,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:58:22,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:58:22,801 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:58:22,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:58:22,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:58:22,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:58:22,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:58:22,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:58:22,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:58:22,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:58:22,813 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:58:22,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:58:22,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:58:22,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:58:22,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:58:22,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:58:22,820 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:58:22,821 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:58:22,828 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:58:22,897 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:58:22,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:58:22,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:58:22,899 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:58:22,899 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:58:22,900 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:58:22,900 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:58:22,900 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:58:22,900 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:58:22,902 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:58:22,902 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:58:22,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:58:22,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:58:22,903 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:58:22,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:58:22,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:58:22,904 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:58:22,904 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:58:22,904 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:58:22,904 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:58:22,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:58:22,905 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:58:22,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:58:22,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:58:22,906 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:58:22,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:58:22,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:22,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:58:22,907 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:58:22,907 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:58:22,908 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:58:22,908 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:58:22,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:58:22,908 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:58:22,909 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:58:22,909 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_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63816408f16166958351bc134d9ad3d8551cdcd0 [2021-10-16 02:58:23,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:58:23,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:58:23,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:58:23,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:58:23,447 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:58:23,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:23,540 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/c0c92bf5b/dcf30feefccd4779a522150442e24aac/FLAGd6588911d [2021-10-16 02:58:24,181 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:58:24,182 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:24,190 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/c0c92bf5b/dcf30feefccd4779a522150442e24aac/FLAGd6588911d [2021-10-16 02:58:24,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/data/c0c92bf5b/dcf30feefccd4779a522150442e24aac [2021-10-16 02:58:24,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:58:24,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:58:24,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:24,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:58:24,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:58:24,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40a5d75e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24, skipping insertion in model container [2021-10-16 02:58:24,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:58:24,569 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:58:24,750 WARN L228 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_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-10-16 02:58:24,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:24,833 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:58:24,849 WARN L228 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_d42f684a-7724-4789-96f1-08826cccd902/sv-benchmarks/c/loops/veris.c_NetBSD-libc_loop.i[825,838] [2021-10-16 02:58:24,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:58:24,874 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:58:24,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24 WrapperNode [2021-10-16 02:58:24,875 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:58:24,876 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:24,877 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:58:24,877 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:58:24,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,919 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:58:24,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:58:24,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:58:24,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:58:24,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:58:24,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:58:24,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:58:24,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:58:24,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (1/1) ... [2021-10-16 02:58:24,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:58:24,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:58:25,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:58:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:58:25,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:58:25,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:58:25,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:58:25,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:58:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:58:25,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:58:25,324 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:58:25,325 INFO L299 CfgBuilder]: Removed 9 assume(true) statements. [2021-10-16 02:58:25,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:25 BoogieIcfgContainer [2021-10-16 02:58:25,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:58:25,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:58:25,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:58:25,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:58:25,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:58:24" (1/3) ... [2021-10-16 02:58:25,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee7130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:25, skipping insertion in model container [2021-10-16 02:58:25,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:58:24" (2/3) ... [2021-10-16 02:58:25,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fee7130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:58:25, skipping insertion in model container [2021-10-16 02:58:25,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:25" (3/3) ... [2021-10-16 02:58:25,338 INFO L111 eAbstractionObserver]: Analyzing ICFG veris.c_NetBSD-libc_loop.i [2021-10-16 02:58:25,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:58:25,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:58:25,438 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:58:25,446 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:58:25,446 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:58:25,463 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:25,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:58:25,469 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:25,470 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:58:25,470 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:25,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:25,478 INFO L82 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2021-10-16 02:58:25,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:58:25,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1535731096] [2021-10-16 02:58:25,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:25,535 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:58:25,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:58:25,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:58:25,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:58:25,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:25,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:58:25,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:25,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:25,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:26,011 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:58:26,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1535731096] [2021-10-16 02:58:26,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1535731096] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:58:26,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:58:26,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-16 02:58:26,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387349006] [2021-10-16 02:58:26,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:58:26,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:58:26,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:58:26,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:58:26,043 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:26,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:58:26,222 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-16 02:58:26,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:58:26,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:58:26,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:58:26,236 INFO L225 Difference]: With dead ends: 48 [2021-10-16 02:58:26,237 INFO L226 Difference]: Without dead ends: 17 [2021-10-16 02:58:26,240 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 94.7ms TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:58:26,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-16 02:58:26,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2021-10-16 02:58:26,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:26,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-10-16 02:58:26,279 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-10-16 02:58:26,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:58:26,280 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-10-16 02:58:26,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-10-16 02:58:26,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-16 02:58:26,289 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:58:26,289 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2021-10-16 02:58:26,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-16 02:58:26,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:58:26,510 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:58:26,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:58:26,512 INFO L82 PathProgramCache]: Analyzing trace with hash -1625670603, now seen corresponding path program 1 times [2021-10-16 02:58:26,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:58:26,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [760532030] [2021-10-16 02:58:26,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:26,514 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:58:26,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:58:26,525 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:58:26,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:58:26,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:26,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:58:26,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:26,926 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:27,086 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:27,087 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:58:27,088 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [760532030] [2021-10-16 02:58:27,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [760532030] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:58:27,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [120251780] [2021-10-16 02:58:27,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:27,091 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:58:27,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:58:27,096 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:58:27,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-16 02:58:27,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:27,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-16 02:58:27,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:27,442 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:27,442 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:27,537 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:27,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [120251780] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:58:27,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863059951] [2021-10-16 02:58:27,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:58:27,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:58:27,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:58:27,545 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:58:27,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-16 02:58:27,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:58:27,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 23 conjunts are in the unsatisfiable core [2021-10-16 02:58:27,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:58:28,091 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:28,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:58:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:58:28,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863059951] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:58:28,842 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:58:28,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 8] total 18 [2021-10-16 02:58:28,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231429825] [2021-10-16 02:58:28,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-16 02:58:28,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:58:28,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-16 02:58:28,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-10-16 02:58:28,847 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:29,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:58:29,050 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-10-16 02:58:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:58:29,051 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-16 02:58:29,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:58:29,051 INFO L225 Difference]: With dead ends: 17 [2021-10-16 02:58:29,051 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:58:29,053 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 704.9ms TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:58:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:58:29,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:58:29,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:29,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:58:29,054 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-10-16 02:58:29,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:58:29,055 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:58:29,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:58:29,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:58:29,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:58:29,059 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:58:29,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:58:29,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-16 02:58:29,487 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-10-16 02:58:29,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:58:29,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:58:29,666 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:29,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:29,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:29,738 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:58:29,947 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:58:29,948 INFO L857 garLoopResultBuilder]: For program point L29-2(lines 29 33) no Hoare annotation was computed. [2021-10-16 02:58:29,948 INFO L853 garLoopResultBuilder]: At program point L29-3(lines 29 33) the Hoare annotation is: (let ((.cse0 (= (_ bv4 32) ~tmp~0.offset)) (.cse1 (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base)) (.cse2 (= (_ bv4 32) ULTIMATE.start_glob2_~pathlim.offset))) (or (and .cse0 .cse1 (= ULTIMATE.start_glob2_~p~0.offset (_ bv0 32)) .cse2) (and (= (_ bv4 32) ULTIMATE.start_glob2_~p~0.offset) .cse0 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) .cse1 .cse2) (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) .cse0 .cse1 (= (_ bv8 32) ULTIMATE.start_glob2_~p~0.offset) .cse2))) [2021-10-16 02:58:29,948 INFO L857 garLoopResultBuilder]: For program point L29-4(lines 29 33) no Hoare annotation was computed. [2021-10-16 02:58:29,949 INFO L853 garLoopResultBuilder]: At program point L48(lines 38 49) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (_ bv4 32) ~tmp~0.offset) (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base) (= ULTIMATE.start_glob2_~p~0.offset (_ bv0 32)))) [2021-10-16 02:58:29,949 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-10-16 02:58:29,949 INFO L853 garLoopResultBuilder]: At program point L15-2(lines 14 19) the Hoare annotation is: (let ((.cse0 (= (_ bv4 32) ~tmp~0.offset)) (.cse1 (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base)) (.cse2 (= (_ bv4 32) ULTIMATE.start_glob2_~pathlim.offset))) (or (and (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (= (_ bv4 32) ULTIMATE.start_glob2_~p~0.offset) .cse0 .cse1 .cse2) (and .cse0 (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) .cse1 (= ULTIMATE.start_glob2_~p~0.offset (_ bv0 32)) .cse2))) [2021-10-16 02:58:29,949 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:58:29,949 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:58:29,950 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:58:29,950 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2021-10-16 02:58:29,950 INFO L857 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2021-10-16 02:58:29,950 INFO L853 garLoopResultBuilder]: At program point L35(lines 25 36) the Hoare annotation is: (or (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32))) (and (= (_ bv4 32) ~tmp~0.offset) (= ULTIMATE.start_glob2_~p~0.base ~tmp~0.base) (= ULTIMATE.start_glob2_~p~0.offset (_ bv0 32)))) [2021-10-16 02:58:29,956 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:58:29,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:58:29 BoogieIcfgContainer [2021-10-16 02:58:29,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:58:29,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:58:29,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:58:29,978 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:58:29,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:58:25" (3/4) ... [2021-10-16 02:58:29,982 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:58:29,994 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-16 02:58:29,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-16 02:58:29,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:58:29,995 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:58:30,043 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:58:30,048 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:58:30,050 INFO L168 Benchmark]: Toolchain (without parser) took 5524.82 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 44.2 MB in the beginning and 33.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,051 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:30,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.17 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 46.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,052 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 65.0 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:58:30,054 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 ms. Allocated memory is still 65.0 MB. Free memory was 45.5 MB in the beginning and 44.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,054 INFO L168 Benchmark]: RCFGBuilder took 375.12 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 34.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,056 INFO L168 Benchmark]: TraceAbstraction took 4647.41 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 33.7 MB in the beginning and 35.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,057 INFO L168 Benchmark]: Witness Printer took 70.36 ms. Allocated memory is still 86.0 MB. Free memory was 35.4 MB in the beginning and 33.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:58:30,067 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 65.0 MB. Free memory is still 45.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.17 ms. Allocated memory is still 65.0 MB. Free memory was 43.9 MB in the beginning and 46.9 MB in the end (delta: -3.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 65.0 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.68 ms. Allocated memory is still 65.0 MB. Free memory was 45.5 MB in the beginning and 44.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 375.12 ms. Allocated memory is still 65.0 MB. Free memory was 44.2 MB in the beginning and 34.1 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4647.41 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 33.7 MB in the beginning and 35.4 MB in the end (delta: -1.7 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * Witness Printer took 70.36 ms. Allocated memory is still 86.0 MB. Free memory was 35.4 MB in the beginning and 33.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4519.9ms, OverallIterations: 2, TraceHistogramMax: 3, EmptinessCheckTime: 11.9ms, AutomataDifference: 424.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 286.3ms, InitialAbstractionConstructionTime: 11.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 14 SDtfs, 65 SDslu, 30 SDs, 0 SdLazy, 81 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 799.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 17 NumberOfFragments, 111 HoareAnnotationTreeSize, 4 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 79.7ms HoareSimplificationTime, 4 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 199.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 83.9ms SsaConstructionTime, 170.1ms SatisfiabilityAnalysisTime, 2244.3ms InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 546 SizeOfPredicates, 41 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 10/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: ((((4bv32 == tmp && p == tmp) && p == 0bv32) && 4bv32 == pathlim) || ((((4bv32 == p && 4bv32 == tmp) && cond == 1bv32) && p == tmp) && 4bv32 == pathlim)) || ((((!(cond == 0bv32) && 4bv32 == tmp) && p == tmp) && 8bv32 == p) && 4bv32 == pathlim) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ((((!(cond == 0bv32) && 4bv32 == p) && 4bv32 == tmp) && p == tmp) && 4bv32 == pathlim) || ((((4bv32 == tmp && cond == 1bv32) && p == tmp) && p == 0bv32) && 4bv32 == pathlim) - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: !(cond == 0bv32) || ((4bv32 == tmp && p == tmp) && p == 0bv32) - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !(cond == 0bv32) || ((4bv32 == tmp && p == tmp) && p == 0bv32) RESULT: Ultimate proved your program to be correct! [2021-10-16 02:58:30,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d42f684a-7724-4789-96f1-08826cccd902/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...