./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/rule60_list.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/rule60_list.i -s /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42d0efa4152259a598ae991dec084e493c366d6a ........................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:03:43,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:03:43,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:03:43,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:03:43,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:03:43,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:03:43,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:03:43,187 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:03:43,190 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:03:43,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:03:43,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:03:43,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:03:43,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:03:43,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:03:43,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:03:43,207 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:03:43,208 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:03:43,209 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:03:43,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:03:43,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:03:43,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:03:43,217 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:03:43,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:03:43,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:03:43,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:03:43,223 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:03:43,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:03:43,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:03:43,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:03:43,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:03:43,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:03:43,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:03:43,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:03:43,230 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:03:43,232 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:03:43,232 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:03:43,233 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:03:43,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:03:43,234 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:03:43,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:03:43,235 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:03:43,236 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 16:03:43,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:03:43,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:03:43,263 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:03:43,263 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:03:43,263 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 16:03:43,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:03:43,264 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:03:43,264 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:03:43,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:03:43,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:03:43,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:03:43,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:03:43,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:03:43,266 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:03:43,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:03:43,266 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:03:43,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:03:43,267 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:03:43,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 16:03:43,267 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:03:43,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 16:03:43,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 16:03:43,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:03:43,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:03:43,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:03:43,269 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 16:03:43,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:03:43,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:03:43,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 16:03:43,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d0efa4152259a598ae991dec084e493c366d6a [2020-12-01 16:03:43,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:03:43,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:03:43,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:03:43,546 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:03:43,547 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:03:43,549 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/rule60_list.i [2020-12-01 16:03:43,627 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/data/7f7f6bf31/ae231171972f47d5a4dd2e2a3c4a2965/FLAGf694e14f8 [2020-12-01 16:03:44,141 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:03:44,141 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/sv-benchmarks/c/ldv-regression/rule60_list.i [2020-12-01 16:03:44,157 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/data/7f7f6bf31/ae231171972f47d5a4dd2e2a3c4a2965/FLAGf694e14f8 [2020-12-01 16:03:44,630 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/data/7f7f6bf31/ae231171972f47d5a4dd2e2a3c4a2965 [2020-12-01 16:03:44,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:03:44,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:03:44,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:03:44,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:03:44,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:03:44,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:03:44" (1/1) ... [2020-12-01 16:03:44,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f66a155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:44, skipping insertion in model container [2020-12-01 16:03:44,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:03:44" (1/1) ... [2020-12-01 16:03:44,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:03:44,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:03:45,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:03:45,168 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:03:45,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:03:45,300 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:03:45,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45 WrapperNode [2020-12-01 16:03:45,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:03:45,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:03:45,303 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:03:45,303 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:03:45,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:03:45,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:03:45,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:03:45,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:03:45,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,371 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... [2020-12-01 16:03:45,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:03:45,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:03:45,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:03:45,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:03:45,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/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 [2020-12-01 16:03:45,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:03:45,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-01 16:03:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:03:45,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:03:45,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:03:45,779 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:03:45,780 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 16:03:45,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:03:45 BoogieIcfgContainer [2020-12-01 16:03:45,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:03:45,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 16:03:45,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 16:03:45,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 16:03:45,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 04:03:44" (1/3) ... [2020-12-01 16:03:45,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344d8645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 04:03:45, skipping insertion in model container [2020-12-01 16:03:45,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:03:45" (2/3) ... [2020-12-01 16:03:45,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344d8645 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 04:03:45, skipping insertion in model container [2020-12-01 16:03:45,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:03:45" (3/3) ... [2020-12-01 16:03:45,810 INFO L111 eAbstractionObserver]: Analyzing ICFG rule60_list.i [2020-12-01 16:03:45,824 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 16:03:45,827 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-01 16:03:45,838 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-01 16:03:45,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 16:03:45,862 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 16:03:45,862 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 16:03:45,863 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 16:03:45,863 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 16:03:45,863 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 16:03:45,863 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 16:03:45,863 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 16:03:45,877 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-12-01 16:03:45,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:03:45,883 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 16:03:45,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-01 16:03:45,884 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 16:03:45,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:03:45,897 INFO L82 PathProgramCache]: Analyzing trace with hash 28693860, now seen corresponding path program 1 times [2020-12-01 16:03:45,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:03:45,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078578493] [2020-12-01 16:03:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:03:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:03:46,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:03:46,213 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078578493] [2020-12-01 16:03:46,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:03:46,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-01 16:03:46,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358882611] [2020-12-01 16:03:46,218 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 16:03:46,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:03:46,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 16:03:46,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-01 16:03:46,240 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-12-01 16:03:46,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:03:46,310 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2020-12-01 16:03:46,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 16:03:46,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-12-01 16:03:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 16:03:46,320 INFO L225 Difference]: With dead ends: 39 [2020-12-01 16:03:46,321 INFO L226 Difference]: Without dead ends: 14 [2020-12-01 16:03:46,324 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 16:03:46,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-01 16:03:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-01 16:03:46,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 16:03:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-12-01 16:03:46,357 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 5 [2020-12-01 16:03:46,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 16:03:46,358 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-12-01 16:03:46,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 16:03:46,359 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-12-01 16:03:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:03:46,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 16:03:46,359 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:03:46,360 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 16:03:46,360 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 16:03:46,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:03:46,365 INFO L82 PathProgramCache]: Analyzing trace with hash 118643082, now seen corresponding path program 1 times [2020-12-01 16:03:46,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:03:46,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195601954] [2020-12-01 16:03:46,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:03:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:03:46,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:03:46,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195601954] [2020-12-01 16:03:46,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:03:46,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 16:03:46,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845390472] [2020-12-01 16:03:46,542 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 16:03:46,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:03:46,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 16:03:46,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-01 16:03:46,544 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 7 states. [2020-12-01 16:03:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:03:46,646 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-12-01 16:03:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 16:03:46,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-12-01 16:03:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 16:03:46,647 INFO L225 Difference]: With dead ends: 14 [2020-12-01 16:03:46,647 INFO L226 Difference]: Without dead ends: 12 [2020-12-01 16:03:46,649 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-12-01 16:03:46,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-01 16:03:46,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-01 16:03:46,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 16:03:46,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2020-12-01 16:03:46,654 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2020-12-01 16:03:46,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 16:03:46,655 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2020-12-01 16:03:46,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 16:03:46,655 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2020-12-01 16:03:46,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:03:46,656 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 16:03:46,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 16:03:46,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 16:03:46,658 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 16:03:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:03:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash -263662125, now seen corresponding path program 1 times [2020-12-01 16:03:46,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 16:03:46,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920221723] [2020-12-01 16:03:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 16:03:46,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:03:46,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:03:46,844 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920221723] [2020-12-01 16:03:46,844 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 16:03:46,844 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-01 16:03:46,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961916237] [2020-12-01 16:03:46,845 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 16:03:46,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 16:03:46,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 16:03:46,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-01 16:03:46,847 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 7 states. [2020-12-01 16:03:46,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 16:03:46,919 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-12-01 16:03:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 16:03:46,919 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-01 16:03:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 16:03:46,920 INFO L225 Difference]: With dead ends: 12 [2020-12-01 16:03:46,920 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 16:03:46,921 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2020-12-01 16:03:46,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 16:03:46,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 16:03:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 16:03:46,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 16:03:46,922 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-01 16:03:46,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 16:03:46,922 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 16:03:46,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 16:03:46,922 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 16:03:46,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:03:46,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-01 16:03:46,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 16:03:46,939 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,939 INFO L262 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L523-2(line 523) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,940 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 16:03:46,941 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 16:03:46,941 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 16:03:46,941 INFO L258 CegarLoopResult]: At program point L540(lines 531 541) the Hoare annotation is: (and (= ULTIMATE.start_main_~dev~0.offset 0) (<= 0 |~#head~0.offset|) (<= |~#head~0.offset| 0)) [2020-12-01 16:03:46,941 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,941 INFO L262 CegarLoopResult]: For program point L4(lines 1 541) no Hoare annotation was computed. [2020-12-01 16:03:46,942 INFO L262 CegarLoopResult]: For program point L4-1(lines 1 541) no Hoare annotation was computed. [2020-12-01 16:03:46,942 INFO L262 CegarLoopResult]: For program point L4-2(lines 1 541) no Hoare annotation was computed. [2020-12-01 16:03:46,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 16:03:46,942 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 16:03:46,942 INFO L262 CegarLoopResult]: For program point L534(lines 534 539) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L534-1(lines 534 539) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L526(lines 526 529) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L522(lines 522 525) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-12-01 16:03:46,943 INFO L262 CegarLoopResult]: For program point L6-2(line 6) no Hoare annotation was computed. [2020-12-01 16:03:46,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 04:03:46 BoogieIcfgContainer [2020-12-01 16:03:46,960 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 16:03:46,961 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:03:46,961 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:03:46,961 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:03:46,961 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:03:45" (3/4) ... [2020-12-01 16:03:46,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:03:46,974 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-01 16:03:46,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:03:46,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:03:46,975 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:03:47,018 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f946166f-0228-473c-93b6-ffa5c0d2fdbd/bin/uautomizer/witness.graphml [2020-12-01 16:03:47,019 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:03:47,020 INFO L168 Benchmark]: Toolchain (without parser) took 2380.13 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 52.0 MB in the beginning and 43.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,021 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:03:47,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.69 ms. Allocated memory is still 83.9 MB. Free memory was 51.8 MB in the beginning and 50.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.64 ms. Allocated memory is still 83.9 MB. Free memory was 50.7 MB in the beginning and 48.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:03:47,022 INFO L168 Benchmark]: Boogie Preprocessor took 38.84 ms. Allocated memory is still 83.9 MB. Free memory was 48.9 MB in the beginning and 47.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,022 INFO L168 Benchmark]: RCFGBuilder took 396.67 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.5 MB in the beginning and 77.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,023 INFO L168 Benchmark]: TraceAbstraction took 1169.70 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 46.1 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,024 INFO L168 Benchmark]: Witness Printer took 58.33 ms. Allocated memory is still 100.7 MB. Free memory was 46.1 MB in the beginning and 43.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:03:47,026 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 83.9 MB. Free memory was 58.8 MB in the beginning and 58.8 MB in the end (delta: 26.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 645.69 ms. Allocated memory is still 83.9 MB. Free memory was 51.8 MB in the beginning and 50.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.64 ms. Allocated memory is still 83.9 MB. Free memory was 50.7 MB in the beginning and 48.9 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.84 ms. Allocated memory is still 83.9 MB. Free memory was 48.9 MB in the beginning and 47.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 396.67 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 47.5 MB in the beginning and 77.4 MB in the end (delta: -29.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1169.70 ms. Allocated memory is still 100.7 MB. Free memory was 76.7 MB in the beginning and 46.1 MB in the end (delta: 30.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 16.1 GB. * Witness Printer took 58.33 ms. Allocated memory is still 100.7 MB. Free memory was 46.1 MB in the beginning and 43.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 531]: Loop Invariant Derived loop invariant: (dev == 0 && 0 <= head) && head <= 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 75 SDslu, 23 SDs, 0 SdLazy, 46 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 1468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...