./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de7eb1b4edf01055c51816e5c7538789ce22635d .................................................................................................................................................................................................................................................................................... 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_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de7eb1b4edf01055c51816e5c7538789ce22635d ........................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:14,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:14,192 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:14,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:14,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:14,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:14,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:14,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:14,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:14,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:14,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:14,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:14,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:14,267 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:14,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:14,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:14,272 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:14,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:14,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:14,289 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:14,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:14,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:14,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:14,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:14,301 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:14,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:14,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:14,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:14,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:14,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:14,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:14,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:14,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:14,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:14,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:14,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:14,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:14,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:14,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:14,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:14,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:14,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:27:14,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:14,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:14,367 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:14,367 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:14,368 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:14,368 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:14,368 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:27:14,368 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:14,374 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:14,375 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:27:14,376 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:27:14,376 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:14,376 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:27:14,377 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:27:14,377 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:27:14,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:14,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:14,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:27:14,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:14,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:14,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:14,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:14,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:14,379 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:14,380 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:14,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:14,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:14,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:14,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:14,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:14,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:14,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:14,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:14,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:14,382 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:27:14,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:27:14,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:14,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:14,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:14,383 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_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7eb1b4edf01055c51816e5c7538789ce22635d [2021-10-11 02:27:14,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:14,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:14,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:14,734 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:14,735 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:14,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-10-11 02:27:14,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/89b7d98a1/dd4de9b505864338b31390a43fdfc59d/FLAG9761c0af3 [2021-10-11 02:27:15,253 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:15,255 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-10-11 02:27:15,266 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/89b7d98a1/dd4de9b505864338b31390a43fdfc59d/FLAG9761c0af3 [2021-10-11 02:27:15,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/89b7d98a1/dd4de9b505864338b31390a43fdfc59d [2021-10-11 02:27:15,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:15,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:15,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:15,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:15,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:15,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536e4f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15, skipping insertion in model container [2021-10-11 02:27:15,641 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:15,660 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:15,813 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-10-11 02:27:15,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:15,833 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:15,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-10-11 02:27:15,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:15,863 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:15,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15 WrapperNode [2021-10-11 02:27:15,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:15,865 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:15,865 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:15,865 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:15,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:15,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:15,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:15,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:15,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,917 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... [2021-10-11 02:27:15,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:15,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:15,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:15,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:15,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:16,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:16,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:27:16,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:16,184 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:16,185 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:27:16,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:16 BoogieIcfgContainer [2021-10-11 02:27:16,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:16,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:16,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:16,197 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:16,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:15" (1/3) ... [2021-10-11 02:27:16,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c47d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:16, skipping insertion in model container [2021-10-11 02:27:16,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:15" (2/3) ... [2021-10-11 02:27:16,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c47d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:16, skipping insertion in model container [2021-10-11 02:27:16,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:16" (3/3) ... [2021-10-11 02:27:16,202 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2021-10-11 02:27:16,221 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:16,225 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:16,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:16,269 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:16,270 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:16,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:16,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:16,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:16,270 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:16,270 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:16,271 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:16,292 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 02:27:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-11 02:27:16,297 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:16,298 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-11 02:27:16,299 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:16,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:16,306 INFO L82 PathProgramCache]: Analyzing trace with hash 57691362, now seen corresponding path program 1 times [2021-10-11 02:27:16,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:16,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666428138] [2021-10-11 02:27:16,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:16,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:16,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666428138] [2021-10-11 02:27:16,492 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:16,492 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:27:16,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466970021] [2021-10-11 02:27:16,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:27:16,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:27:16,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:27:16,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:16,519 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 2 states. [2021-10-11 02:27:16,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:16,537 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-10-11 02:27:16,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:27:16,538 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2021-10-11 02:27:16,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:16,558 INFO L225 Difference]: With dead ends: 15 [2021-10-11 02:27:16,558 INFO L226 Difference]: Without dead ends: 7 [2021-10-11 02:27:16,561 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:27:16,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-10-11 02:27:16,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-10-11 02:27:16,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-11 02:27:16,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2021-10-11 02:27:16,608 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2021-10-11 02:27:16,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:16,609 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2021-10-11 02:27:16,609 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:27:16,609 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2021-10-11 02:27:16,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:27:16,610 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:16,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:27:16,611 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:27:16,611 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:16,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:16,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1781785905, now seen corresponding path program 1 times [2021-10-11 02:27:16,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:27:16,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125544790] [2021-10-11 02:27:16,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:27:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:16,652 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:27:16,669 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:27:16,688 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:27:16,689 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:27:16,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:27:16,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:16 BoogieIcfgContainer [2021-10-11 02:27:16,711 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:16,711 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:16,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:16,712 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:16,712 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:16" (3/4) ... [2021-10-11 02:27:16,716 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:27:16,716 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:16,718 INFO L168 Benchmark]: Toolchain (without parser) took 1084.23 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 58.0 MB in the beginning and 95.2 MB in the end (delta: -37.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:16,719 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 65.3 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:16,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.84 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 68.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:16,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:16,722 INFO L168 Benchmark]: Boogie Preprocessor took 21.14 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:16,723 INFO L168 Benchmark]: RCFGBuilder took 267.57 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 53.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:16,724 INFO L168 Benchmark]: TraceAbstraction took 522.02 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 53.2 MB in the beginning and 95.8 MB in the end (delta: -42.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:16,724 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 121.6 MB. Free memory was 95.8 MB in the beginning and 95.2 MB in the end (delta: 627.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:16,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.3 MB in the beginning and 65.3 MB in the end (delta: 31.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 229.84 ms. Allocated memory is still 92.3 MB. Free memory was 57.8 MB in the beginning and 68.2 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.07 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.14 ms. Allocated memory is still 92.3 MB. Free memory was 66.8 MB in the beginning and 65.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 267.57 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 53.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 522.02 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 53.2 MB in the beginning and 95.8 MB in the end (delta: -42.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.97 ms. Allocated memory is still 121.6 MB. Free memory was 95.8 MB in the beginning and 95.2 MB in the end (delta: 627.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; [L13] COND FALSE !(__VERIFIER_nondet_int()) [L6] COND TRUE !(cond) [L7] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:27:19,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:27:19,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:27:19,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:27:19,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:27:19,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:27:19,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:27:19,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:27:19,334 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:27:19,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:27:19,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:27:19,339 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:27:19,339 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:27:19,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:27:19,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:27:19,344 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:27:19,345 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:27:19,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:27:19,349 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:27:19,352 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:27:19,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:27:19,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:27:19,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:27:19,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:27:19,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:27:19,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:27:19,375 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:27:19,376 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:27:19,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:27:19,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:27:19,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:27:19,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:27:19,387 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:27:19,389 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:27:19,391 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:27:19,392 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:27:19,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:27:19,393 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:27:19,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:27:19,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:27:19,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:27:19,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:27:19,445 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:27:19,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:27:19,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:27:19,448 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:27:19,448 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:27:19,448 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:27:19,449 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:27:19,449 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:27:19,449 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:27:19,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:27:19,452 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:27:19,452 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:27:19,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:27:19,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:27:19,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:27:19,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:27:19,454 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:27:19,454 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:27:19,454 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:27:19,454 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:27:19,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:27:19,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:27:19,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:27:19,455 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:27:19,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:27:19,456 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:27:19,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:19,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:27:19,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:27:19,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:27:19,457 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:27:19,457 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:27:19,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:27:19,458 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:27:19,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:27:19,459 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_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de7eb1b4edf01055c51816e5c7538789ce22635d [2021-10-11 02:27:19,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:27:19,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:27:19,933 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:27:19,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:27:19,936 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:27:19,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-10-11 02:27:20,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/f4a1d9d48/9fb59a80213b46bfb3abdb0ed2202118/FLAGed48f0066 [2021-10-11 02:27:20,465 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:27:20,466 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2021-10-11 02:27:20,477 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/f4a1d9d48/9fb59a80213b46bfb3abdb0ed2202118/FLAGed48f0066 [2021-10-11 02:27:20,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/data/f4a1d9d48/9fb59a80213b46bfb3abdb0ed2202118 [2021-10-11 02:27:20,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:27:20,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:27:20,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:20,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:27:20,890 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:27:20,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:20" (1/1) ... [2021-10-11 02:27:20,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@283257 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:20, skipping insertion in model container [2021-10-11 02:27:20,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:27:20" (1/1) ... [2021-10-11 02:27:20,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:27:20,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:27:21,111 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-10-11 02:27:21,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:21,151 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:27:21,169 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2021-10-11 02:27:21,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:27:21,213 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:27:21,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21 WrapperNode [2021-10-11 02:27:21,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:27:21,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:21,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:27:21,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:27:21,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:27:21,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:27:21,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:27:21,277 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:27:21,287 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,321 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... [2021-10-11 02:27:21,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:27:21,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:27:21,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:27:21,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:27:21,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:27:21,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:27:21,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:27:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:27:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:27:21,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:27:21,676 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-11 02:27:21,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:21 BoogieIcfgContainer [2021-10-11 02:27:21,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:27:21,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:27:21,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:27:21,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:27:21,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:27:20" (1/3) ... [2021-10-11 02:27:21,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250e45d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:21, skipping insertion in model container [2021-10-11 02:27:21,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:27:21" (2/3) ... [2021-10-11 02:27:21,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@250e45d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:27:21, skipping insertion in model container [2021-10-11 02:27:21,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:21" (3/3) ... [2021-10-11 02:27:21,687 INFO L111 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2021-10-11 02:27:21,701 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:27:21,705 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:27:21,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:27:21,736 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:27:21,736 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:27:21,736 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:27:21,737 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:27:21,737 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:27:21,737 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:27:21,737 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:27:21,737 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:27:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2021-10-11 02:27:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-11 02:27:21,754 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:21,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-10-11 02:27:21,755 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:21,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:21,761 INFO L82 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2021-10-11 02:27:21,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:21,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [593732855] [2021-10-11 02:27:21,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:21,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:27:21,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:21,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:21,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:27:21,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [593732855] [2021-10-11 02:27:21,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:27:21,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:27:21,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514146180] [2021-10-11 02:27:21,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:21,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:21,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:21,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:27:21,931 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 4 states. [2021-10-11 02:27:21,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:21,987 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2021-10-11 02:27:21,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:27:21,990 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2021-10-11 02:27:21,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:22,005 INFO L225 Difference]: With dead ends: 26 [2021-10-11 02:27:22,008 INFO L226 Difference]: Without dead ends: 8 [2021-10-11 02:27:22,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:27:22,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-10-11 02:27:22,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-10-11 02:27:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-10-11 02:27:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-11 02:27:22,082 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2021-10-11 02:27:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:22,083 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-11 02:27:22,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:22,083 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-11 02:27:22,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:27:22,084 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:27:22,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:27:22,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:27:22,293 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:27:22,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:27:22,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2021-10-11 02:27:22,296 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:27:22,296 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774179906] [2021-10-11 02:27:22,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:27:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:27:22,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:27:22,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:27:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:27:22,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:27:22,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:27:22,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774179906] [2021-10-11 02:27:22,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-11 02:27:22,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-10-11 02:27:22,500 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752512794] [2021-10-11 02:27:22,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:27:22,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:27:22,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:27:22,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:27:22,503 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 4 states. [2021-10-11 02:27:22,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:27:22,524 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2021-10-11 02:27:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:27:22,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-10-11 02:27:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:27:22,526 INFO L225 Difference]: With dead ends: 8 [2021-10-11 02:27:22,527 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:27:22,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-10-11 02:27:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:27:22,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:27:22,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:27:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:27:22,531 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2021-10-11 02:27:22,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:27:22,531 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:27:22,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:27:22,532 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:27:22,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:27:22,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:27:22,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:27:22,783 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:27:22,784 INFO L265 CegarLoopResult]: At program point L17(lines 11 18) the Hoare annotation is: true [2021-10-11 02:27:22,785 INFO L258 CegarLoopResult]: At program point L13-2(lines 13 15) the Hoare annotation is: (= (_ bv5 32) (bvand (_ bv5 32) ULTIMATE.start_main_~x~0)) [2021-10-11 02:27:22,785 INFO L262 CegarLoopResult]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2021-10-11 02:27:22,785 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:27:22,786 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:27:22,786 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:27:22,787 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:27:22,787 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-10-11 02:27:22,787 INFO L262 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-10-11 02:27:22,787 INFO L265 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-10-11 02:27:22,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:27:22 BoogieIcfgContainer [2021-10-11 02:27:22,801 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:27:22,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:27:22,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:27:22,811 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:27:22,812 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:27:21" (3/4) ... [2021-10-11 02:27:22,815 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:27:22,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:27:22,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:27:22,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:22,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:27:22,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e07ec6b3-8aef-4fa4-bc40-fd618008b9ec/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:27:22,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:27:22,876 INFO L168 Benchmark]: Toolchain (without parser) took 1987.76 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 45.8 MB in the beginning and 48.5 MB in the end (delta: -2.7 MB). Peak memory consumption was 13.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:22,877 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 67.1 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:22,878 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.62 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 50.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:22,879 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:22,879 INFO L168 Benchmark]: Boogie Preprocessor took 47.62 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:27:22,880 INFO L168 Benchmark]: RCFGBuilder took 352.13 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 36.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:22,883 INFO L168 Benchmark]: TraceAbstraction took 1122.02 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.5 MB in the beginning and 50.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:22,884 INFO L168 Benchmark]: Witness Printer took 66.75 ms. Allocated memory is still 81.8 MB. Free memory was 50.6 MB in the beginning and 48.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:27:22,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 67.1 MB. Free memory is still 47.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 345.62 ms. Allocated memory is still 67.1 MB. Free memory was 45.7 MB in the beginning and 50.3 MB in the end (delta: -4.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.73 ms. Allocated memory is still 67.1 MB. Free memory was 50.1 MB in the beginning and 48.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.62 ms. Allocated memory is still 67.1 MB. Free memory was 48.9 MB in the beginning and 47.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 352.13 ms. Allocated memory is still 67.1 MB. Free memory was 47.7 MB in the beginning and 36.9 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1122.02 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 36.5 MB in the beginning and 50.6 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 16.1 GB. * Witness Printer took 66.75 ms. Allocated memory is still 81.8 MB. Free memory was 50.6 MB in the beginning and 48.5 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: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 5bv32 == ~bvand32(5bv32, x) - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 10 SDslu, 19 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 7 HoareAnnotationTreeSize, 3 FomulaSimplifications, 10 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 311 SizeOfPredicates, 4 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...