./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label57.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label57.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8 --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 fad690d4865ac474e072bb602958ef02a6bf3393 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 08:08:13,981 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 08:08:13,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 08:08:14,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 08:08:14,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 08:08:14,021 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 08:08:14,023 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 08:08:14,026 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 08:08:14,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 08:08:14,029 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 08:08:14,031 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 08:08:14,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 08:08:14,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 08:08:14,035 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 08:08:14,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 08:08:14,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 08:08:14,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 08:08:14,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 08:08:14,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 08:08:14,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 08:08:14,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 08:08:14,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 08:08:14,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 08:08:14,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 08:08:14,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 08:08:14,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 08:08:14,060 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 08:08:14,061 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 08:08:14,062 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 08:08:14,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 08:08:14,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 08:08:14,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 08:08:14,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 08:08:14,067 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 08:08:14,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 08:08:14,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 08:08:14,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 08:08:14,071 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 08:08:14,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 08:08:14,073 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 08:08:14,074 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 08:08:14,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 08:08:14,106 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 08:08:14,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 08:08:14,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 08:08:14,108 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 08:08:14,108 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 08:08:14,109 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 08:08:14,109 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 08:08:14,110 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 08:08:14,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 08:08:14,110 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 08:08:14,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 08:08:14,111 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 08:08:14,112 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 08:08:14,112 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 08:08:14,113 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 08:08:14,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 08:08:14,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 08:08:14,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 08:08:14,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 08:08:14,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 08:08:14,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 08:08:14,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 08:08:14,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 08:08:14,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 08:08:14,116 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 08:08:14,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 08:08:14,116 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 08:08:14,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 08:08:14,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 08:08:14,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 08:08:14,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:08:14,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 08:08:14,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 08:08:14,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 08:08:14,118 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 08:08:14,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 08:08:14,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 08:08:14,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 08:08:14,119 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 08:08:14,120 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_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fad690d4865ac474e072bb602958ef02a6bf3393 [2021-10-13 08:08:14,457 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 08:08:14,500 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 08:08:14,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 08:08:14,504 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 08:08:14,505 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 08:08:14,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/eca-rers2012/Problem02_label57.c [2021-10-13 08:08:14,600 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/data/686bb523e/ba0a973a62ad457885d619c75286ad2b/FLAGd7cace3f5 [2021-10-13 08:08:15,260 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 08:08:15,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/sv-benchmarks/c/eca-rers2012/Problem02_label57.c [2021-10-13 08:08:15,277 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/data/686bb523e/ba0a973a62ad457885d619c75286ad2b/FLAGd7cace3f5 [2021-10-13 08:08:15,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/data/686bb523e/ba0a973a62ad457885d619c75286ad2b [2021-10-13 08:08:15,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 08:08:15,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 08:08:15,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 08:08:15,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 08:08:15,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 08:08:15,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:08:15" (1/1) ... [2021-10-13 08:08:15,533 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ade049 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:15, skipping insertion in model container [2021-10-13 08:08:15,533 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:08:15" (1/1) ... [2021-10-13 08:08:15,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 08:08:15,620 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 08:08:16,094 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/sv-benchmarks/c/eca-rers2012/Problem02_label57.c[15764,15777] [2021-10-13 08:08:16,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:08:16,145 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 08:08:16,240 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/sv-benchmarks/c/eca-rers2012/Problem02_label57.c[15764,15777] [2021-10-13 08:08:16,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 08:08:16,275 INFO L208 MainTranslator]: Completed translation [2021-10-13 08:08:16,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16 WrapperNode [2021-10-13 08:08:16,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 08:08:16,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 08:08:16,277 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 08:08:16,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 08:08:16,286 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 08:08:16,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 08:08:16,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 08:08:16,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 08:08:16,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,379 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,424 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 08:08:16,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 08:08:16,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 08:08:16,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 08:08:16,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (1/1) ... [2021-10-13 08:08:16,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 08:08:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:08:16,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 08:08:16,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 08:08:16,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 08:08:16,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 08:08:16,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 08:08:16,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 08:08:18,677 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 08:08:18,677 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 08:08:18,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:18 BoogieIcfgContainer [2021-10-13 08:08:18,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 08:08:18,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 08:08:18,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 08:08:18,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 08:08:18,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:08:15" (1/3) ... [2021-10-13 08:08:18,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:08:18, skipping insertion in model container [2021-10-13 08:08:18,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:08:16" (2/3) ... [2021-10-13 08:08:18,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b5679b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:08:18, skipping insertion in model container [2021-10-13 08:08:18,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:18" (3/3) ... [2021-10-13 08:08:18,699 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label57.c [2021-10-13 08:08:18,712 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 08:08:18,713 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 08:08:18,783 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 08:08:18,793 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 08:08:18,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 08:08:18,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:18,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-10-13 08:08:18,828 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:18,829 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:18,829 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:18,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:18,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1814571220, now seen corresponding path program 1 times [2021-10-13 08:08:18,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:18,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403942994] [2021-10-13 08:08:18,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:18,850 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:19,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:19,408 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:08:19,409 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403942994] [2021-10-13 08:08:19,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403942994] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:08:19,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:08:19,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:08:19,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425508125] [2021-10-13 08:08:19,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:08:19,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:08:19,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:08:19,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:19,446 INFO L87 Difference]: Start difference. First operand has 85 states, 83 states have (on average 1.9518072289156627) internal successors, (162), 84 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:19,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:19,999 INFO L93 Difference]: Finished difference Result 251 states and 482 transitions. [2021-10-13 08:08:20,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:08:20,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-10-13 08:08:20,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:20,026 INFO L225 Difference]: With dead ends: 251 [2021-10-13 08:08:20,026 INFO L226 Difference]: Without dead ends: 163 [2021-10-13 08:08:20,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:20,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-10-13 08:08:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2021-10-13 08:08:20,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.7777777777777777) internal successors, (288), 162 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:20,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 288 transitions. [2021-10-13 08:08:20,112 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 288 transitions. Word has length 80 [2021-10-13 08:08:20,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:20,113 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 288 transitions. [2021-10-13 08:08:20,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:20,114 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 288 transitions. [2021-10-13 08:08:20,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-10-13 08:08:20,119 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:20,120 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:20,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 08:08:20,121 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:20,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:20,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1679347891, now seen corresponding path program 1 times [2021-10-13 08:08:20,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:20,122 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337924139] [2021-10-13 08:08:20,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:20,123 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:20,218 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:20,218 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:08:20,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337924139] [2021-10-13 08:08:20,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337924139] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:08:20,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:08:20,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:08:20,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155110962] [2021-10-13 08:08:20,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:08:20,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:08:20,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:08:20,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:20,223 INFO L87 Difference]: Start difference. First operand 163 states and 288 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:20,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:20,649 INFO L93 Difference]: Finished difference Result 485 states and 861 transitions. [2021-10-13 08:08:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:08:20,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2021-10-13 08:08:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:20,653 INFO L225 Difference]: With dead ends: 485 [2021-10-13 08:08:20,654 INFO L226 Difference]: Without dead ends: 323 [2021-10-13 08:08:20,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:20,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-10-13 08:08:20,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-10-13 08:08:20,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 322 states have (on average 1.7018633540372672) internal successors, (548), 322 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:20,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 548 transitions. [2021-10-13 08:08:20,676 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 548 transitions. Word has length 98 [2021-10-13 08:08:20,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:20,677 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 548 transitions. [2021-10-13 08:08:20,677 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:20,677 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 548 transitions. [2021-10-13 08:08:20,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-10-13 08:08:20,684 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:20,684 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:20,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 08:08:20,685 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:20,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:20,686 INFO L82 PathProgramCache]: Analyzing trace with hash 223889527, now seen corresponding path program 1 times [2021-10-13 08:08:20,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:20,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567919494] [2021-10-13 08:08:20,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:20,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:20,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:20,791 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 08:08:20,791 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:08:20,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567919494] [2021-10-13 08:08:20,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567919494] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:08:20,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:08:20,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 08:08:20,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336535272] [2021-10-13 08:08:20,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:08:20,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:08:20,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:08:20,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:20,798 INFO L87 Difference]: Start difference. First operand 323 states and 548 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:21,167 INFO L93 Difference]: Finished difference Result 805 states and 1345 transitions. [2021-10-13 08:08:21,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:08:21,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-10-13 08:08:21,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:21,172 INFO L225 Difference]: With dead ends: 805 [2021-10-13 08:08:21,172 INFO L226 Difference]: Without dead ends: 483 [2021-10-13 08:08:21,175 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:21,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2021-10-13 08:08:21,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2021-10-13 08:08:21,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 482 states have (on average 1.5103734439834025) internal successors, (728), 482 states have internal predecessors, (728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 728 transitions. [2021-10-13 08:08:21,205 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 728 transitions. Word has length 108 [2021-10-13 08:08:21,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:21,205 INFO L470 AbstractCegarLoop]: Abstraction has 483 states and 728 transitions. [2021-10-13 08:08:21,205 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,206 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 728 transitions. [2021-10-13 08:08:21,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-13 08:08:21,211 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:21,212 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:21,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 08:08:21,212 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:21,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:21,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1755739622, now seen corresponding path program 1 times [2021-10-13 08:08:21,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:21,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699981536] [2021-10-13 08:08:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:21,214 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:21,271 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-10-13 08:08:21,271 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:08:21,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699981536] [2021-10-13 08:08:21,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699981536] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 08:08:21,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 08:08:21,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 08:08:21,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375832768] [2021-10-13 08:08:21,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 08:08:21,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:08:21,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 08:08:21,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:21,274 INFO L87 Difference]: Start difference. First operand 483 states and 728 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:21,686 INFO L93 Difference]: Finished difference Result 1205 states and 1845 transitions. [2021-10-13 08:08:21,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 08:08:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-13 08:08:21,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:21,692 INFO L225 Difference]: With dead ends: 1205 [2021-10-13 08:08:21,692 INFO L226 Difference]: Without dead ends: 723 [2021-10-13 08:08:21,698 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.2ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 08:08:21,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2021-10-13 08:08:21,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 723. [2021-10-13 08:08:21,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 723 states, 722 states have (on average 1.389196675900277) internal successors, (1003), 722 states have internal predecessors, (1003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 1003 transitions. [2021-10-13 08:08:21,759 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 1003 transitions. Word has length 113 [2021-10-13 08:08:21,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:21,760 INFO L470 AbstractCegarLoop]: Abstraction has 723 states and 1003 transitions. [2021-10-13 08:08:21,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:21,761 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 1003 transitions. [2021-10-13 08:08:21,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-10-13 08:08:21,766 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 08:08:21,767 INFO L512 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 08:08:21,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 08:08:21,768 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 08:08:21,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 08:08:21,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1872796399, now seen corresponding path program 1 times [2021-10-13 08:08:21,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 08:08:21,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199262983] [2021-10-13 08:08:21,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:21,771 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 08:08:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 08:08:21,970 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 08:08:21,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199262983] [2021-10-13 08:08:21,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199262983] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-13 08:08:21,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758181026] [2021-10-13 08:08:21,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 08:08:21,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:08:21,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 08:08:21,981 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-13 08:08:21,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-13 08:08:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 08:08:22,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 08:08:22,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 08:08:22,707 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:08:22,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 08:08:23,100 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-13 08:08:23,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758181026] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 08:08:23,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2021-10-13 08:08:23,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 7 [2021-10-13 08:08:23,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358248138] [2021-10-13 08:08:23,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 08:08:23,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 08:08:23,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 08:08:23,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:08:23,106 INFO L87 Difference]: Start difference. First operand 723 states and 1003 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 08:08:23,764 INFO L93 Difference]: Finished difference Result 2003 states and 2835 transitions. [2021-10-13 08:08:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 08:08:23,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-10-13 08:08:23,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 08:08:23,769 INFO L225 Difference]: With dead ends: 2003 [2021-10-13 08:08:23,769 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 08:08:23,772 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 38.0ms TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-13 08:08:23,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 08:08:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 08:08:23,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:23,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 08:08:23,773 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2021-10-13 08:08:23,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 08:08:23,773 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 08:08:23,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 08:08:23,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 08:08:23,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 08:08:23,781 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 08:08:23,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-13 08:08:24,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-13 08:08:24,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 08:08:24,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:08:24,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:08:24,023 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 08:08:24,062 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-10-13 08:08:24,068 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-10-13 08:08:24,068 INFO L857 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-10-13 08:08:24,068 INFO L857 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-10-13 08:08:24,068 INFO L857 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-10-13 08:08:24,069 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-10-13 08:08:24,069 INFO L857 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-10-13 08:08:24,069 INFO L857 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-10-13 08:08:24,069 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-10-13 08:08:24,069 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-10-13 08:08:24,070 INFO L857 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-10-13 08:08:24,070 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-10-13 08:08:24,070 INFO L857 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-10-13 08:08:24,070 INFO L857 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-10-13 08:08:24,070 INFO L857 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-10-13 08:08:24,071 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-10-13 08:08:24,071 INFO L857 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-10-13 08:08:24,071 INFO L857 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-10-13 08:08:24,071 INFO L857 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-10-13 08:08:24,071 INFO L857 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-10-13 08:08:24,072 INFO L857 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-10-13 08:08:24,072 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-10-13 08:08:24,072 INFO L857 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-10-13 08:08:24,072 INFO L857 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-10-13 08:08:24,072 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-10-13 08:08:24,073 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-10-13 08:08:24,073 INFO L857 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-10-13 08:08:24,073 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-10-13 08:08:24,073 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 08:08:24,073 INFO L857 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-10-13 08:08:24,074 INFO L857 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-10-13 08:08:24,074 INFO L857 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-10-13 08:08:24,074 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-10-13 08:08:24,074 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-10-13 08:08:24,074 INFO L857 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-10-13 08:08:24,075 INFO L857 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-10-13 08:08:24,075 INFO L857 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-10-13 08:08:24,075 INFO L857 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-10-13 08:08:24,075 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-10-13 08:08:24,076 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 455) no Hoare annotation was computed. [2021-10-13 08:08:24,076 INFO L857 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-10-13 08:08:24,076 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-10-13 08:08:24,076 INFO L857 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-10-13 08:08:24,076 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-10-13 08:08:24,077 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-10-13 08:08:24,077 INFO L857 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-10-13 08:08:24,077 INFO L857 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-10-13 08:08:24,077 INFO L857 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-10-13 08:08:24,077 INFO L857 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-10-13 08:08:24,078 INFO L857 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-10-13 08:08:24,078 INFO L857 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-10-13 08:08:24,078 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-10-13 08:08:24,078 INFO L857 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-10-13 08:08:24,078 INFO L857 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-10-13 08:08:24,079 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-10-13 08:08:24,079 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-10-13 08:08:24,079 INFO L853 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (or (< ~a28~0 11) (= ~a19~0 1) (= ~a25~0 0)) [2021-10-13 08:08:24,079 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-10-13 08:08:24,079 INFO L857 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-10-13 08:08:24,080 INFO L860 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-10-13 08:08:24,080 INFO L857 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-10-13 08:08:24,080 INFO L857 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-10-13 08:08:24,080 INFO L857 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-10-13 08:08:24,080 INFO L857 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-10-13 08:08:24,081 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-10-13 08:08:24,081 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 08:08:24,081 INFO L857 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-10-13 08:08:24,081 INFO L857 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-10-13 08:08:24,082 INFO L853 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (or (< ~a28~0 11) (= ~a19~0 1) (= ~a25~0 0)) [2021-10-13 08:08:24,082 INFO L857 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-10-13 08:08:24,082 INFO L857 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-10-13 08:08:24,082 INFO L857 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-10-13 08:08:24,082 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-10-13 08:08:24,082 INFO L857 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-10-13 08:08:24,083 INFO L857 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-10-13 08:08:24,083 INFO L857 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-10-13 08:08:24,083 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-10-13 08:08:24,083 INFO L857 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-10-13 08:08:24,083 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-10-13 08:08:24,084 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-10-13 08:08:24,084 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-10-13 08:08:24,084 INFO L857 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-10-13 08:08:24,084 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-10-13 08:08:24,084 INFO L857 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-10-13 08:08:24,085 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-10-13 08:08:24,089 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 08:08:24,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:08:24 BoogieIcfgContainer [2021-10-13 08:08:24,102 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 08:08:24,103 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 08:08:24,103 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 08:08:24,103 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 08:08:24,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:08:18" (3/4) ... [2021-10-13 08:08:24,107 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 08:08:24,127 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 113 nodes and edges [2021-10-13 08:08:24,129 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-10-13 08:08:24,131 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 08:08:24,133 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-13 08:08:24,272 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 08:08:24,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 08:08:24,274 INFO L168 Benchmark]: Toolchain (without parser) took 8753.15 ms. Allocated memory was 92.3 MB in the beginning and 161.5 MB in the end (delta: 69.2 MB). Free memory was 55.3 MB in the beginning and 125.7 MB in the end (delta: -70.5 MB). Peak memory consumption was 74.9 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,275 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 62.7 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 08:08:24,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.53 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.1 MB in the beginning and 80.9 MB in the end (delta: -25.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.53 ms. Allocated memory is still 121.6 MB. Free memory was 80.9 MB in the beginning and 75.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,276 INFO L168 Benchmark]: Boogie Preprocessor took 68.61 ms. Allocated memory is still 121.6 MB. Free memory was 75.5 MB in the beginning and 71.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,276 INFO L168 Benchmark]: RCFGBuilder took 2249.07 ms. Allocated memory is still 121.6 MB. Free memory was 71.4 MB in the beginning and 58.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,277 INFO L168 Benchmark]: TraceAbstraction took 5413.92 ms. Allocated memory was 121.6 MB in the beginning and 161.5 MB in the end (delta: 39.8 MB). Free memory was 58.3 MB in the beginning and 64.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,277 INFO L168 Benchmark]: Witness Printer took 169.93 ms. Allocated memory is still 161.5 MB. Free memory was 64.9 MB in the beginning and 125.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. [2021-10-13 08:08:24,279 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 62.7 MB in the beginning and 62.7 MB in the end (delta: 25.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 751.53 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 55.1 MB in the beginning and 80.9 MB in the end (delta: -25.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 85.53 ms. Allocated memory is still 121.6 MB. Free memory was 80.9 MB in the beginning and 75.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.61 ms. Allocated memory is still 121.6 MB. Free memory was 75.5 MB in the beginning and 71.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2249.07 ms. Allocated memory is still 121.6 MB. Free memory was 71.4 MB in the beginning and 58.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 44.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5413.92 ms. Allocated memory was 121.6 MB in the beginning and 161.5 MB in the end (delta: 39.8 MB). Free memory was 58.3 MB in the beginning and 64.9 MB in the end (delta: -6.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 169.93 ms. Allocated memory is still 161.5 MB. Free memory was 64.9 MB in the beginning and 125.7 MB in the end (delta: -60.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 455]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5308.5ms, OverallIterations: 5, TraceHistogramMax: 4, EmptinessCheckTime: 42.5ms, AutomataDifference: 2510.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 53.0ms, InitialAbstractionConstructionTime: 17.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 337 SDtfs, 293 SDslu, 34 SDs, 0 SdLazy, 1309 SolverSat, 403 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1675.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 56.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=4, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 174.8ms AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 37 NumberOfFragments, 21 HoareAnnotationTreeSize, 3 FomulaSimplifications, 262 FormulaSimplificationTreeSizeReduction, 24.5ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 21.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 86.0ms SsaConstructionTime, 300.7ms SatisfiabilityAnalysisTime, 1598.2ms InterpolantComputationTime, 625 NumberOfCodeBlocks, 625 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 731 ConstructedInterpolants, 0 QuantifiedInterpolants, 1739 SizeOfPredicates, 0 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 202/210 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (a28 < 11 || a19 == 1) || a25 == 0 - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (a28 < 11 || a19 == 1) || a25 == 0 RESULT: Ultimate proved your program to be correct! [2021-10-13 08:08:24,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18c6afc9-f050-4b92-a55a-95a4f32f1de6/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...