./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R --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 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:53:24,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:53:24,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:53:24,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:53:24,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:53:24,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:53:24,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:53:24,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:53:24,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:53:24,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:53:24,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:53:24,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:53:24,298 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:53:24,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:53:24,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:53:24,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:53:24,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:53:24,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:53:24,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:53:24,306 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:53:24,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:53:24,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:53:24,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:53:24,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:53:24,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:53:24,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:53:24,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:53:24,334 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:53:24,334 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:53:24,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:53:24,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:53:24,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:53:24,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:53:24,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:53:24,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:53:24,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:53:24,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:53:24,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:53:24,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:53:24,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:53:24,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:53:24,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:53:24,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:53:24,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:53:24,399 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:53:24,399 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:53:24,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:53:24,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:53:24,401 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:53:24,401 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:53:24,402 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:53:24,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:53:24,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:53:24,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:53:24,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:53:24,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:53:24,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:53:24,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:53:24,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:53:24,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:53:24,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:53:24,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:53:24,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:53:24,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:53:24,406 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:53:24,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:53:24,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:53:24,407 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:53:24,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:53:24,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:53:24,407 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:53:24,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:53:24,408 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:53:24,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:53:24,408 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:53:24,409 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:53:24,409 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4af9e26294eb81d37b6ccb692d0b40e4bed5b0d6d3dd72d6af1a80634692c297 [2022-11-25 17:53:24,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:53:24,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:53:24,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:53:24,735 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:53:24,735 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:53:24,736 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/recursive/Addition01-2.c [2022-11-25 17:53:27,759 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:53:28,026 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:53:28,027 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/sv-benchmarks/c/recursive/Addition01-2.c [2022-11-25 17:53:28,034 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/data/e0d0fb485/06153b78217b4d3f9380ce0563ecccb2/FLAG41a94e9fa [2022-11-25 17:53:28,054 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/data/e0d0fb485/06153b78217b4d3f9380ce0563ecccb2 [2022-11-25 17:53:28,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:53:28,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:53:28,064 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:53:28,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:53:28,068 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:53:28,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e68dcb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28, skipping insertion in model container [2022-11-25 17:53:28,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:53:28,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:53:28,296 WARN L237 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_fc040c65-9dfb-4210-a18d-165264e04f6f/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2022-11-25 17:53:28,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:53:28,311 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:53:28,328 WARN L237 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_fc040c65-9dfb-4210-a18d-165264e04f6f/sv-benchmarks/c/recursive/Addition01-2.c[1126,1139] [2022-11-25 17:53:28,328 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:53:28,342 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:53:28,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28 WrapperNode [2022-11-25 17:53:28,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:53:28,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:53:28,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:53:28,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:53:28,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,379 INFO L138 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2022-11-25 17:53:28,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:53:28,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:53:28,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:53:28,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:53:28,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,406 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,406 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,412 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,413 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:53:28,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:53:28,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:53:28,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:53:28,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (1/1) ... [2022-11-25 17:53:28,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:53:28,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:53:28,457 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:53:28,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:53:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:53:28,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:53:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:53:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:53:28,505 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2022-11-25 17:53:28,505 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2022-11-25 17:53:28,584 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:53:28,586 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:53:28,737 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:53:28,743 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:53:28,744 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:53:28,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:28 BoogieIcfgContainer [2022-11-25 17:53:28,746 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:53:28,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:53:28,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:53:28,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:53:28,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:53:28" (1/3) ... [2022-11-25 17:53:28,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5dc847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:28, skipping insertion in model container [2022-11-25 17:53:28,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:28" (2/3) ... [2022-11-25 17:53:28,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5dc847 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:28, skipping insertion in model container [2022-11-25 17:53:28,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:28" (3/3) ... [2022-11-25 17:53:28,755 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2022-11-25 17:53:28,779 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:53:28,779 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:53:28,880 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:53:28,888 INFO L357 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, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20828367, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:53:28,888 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:53:28,905 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 17:53:28,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 17:53:28,914 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:28,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:53:28,916 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:28,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:28,922 INFO L85 PathProgramCache]: Analyzing trace with hash 663264039, now seen corresponding path program 1 times [2022-11-25 17:53:28,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:28,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338346809] [2022-11-25 17:53:28,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:28,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:29,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:29,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:53:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:29,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:53:29,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338346809] [2022-11-25 17:53:29,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338346809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:29,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:29,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:53:29,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771718400] [2022-11-25 17:53:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:29,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:53:29,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:29,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:53:29,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:53:29,557 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.4375) internal successors, (23), 17 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:53:29,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:29,683 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2022-11-25 17:53:29,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:53:29,686 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-11-25 17:53:29,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:29,694 INFO L225 Difference]: With dead ends: 34 [2022-11-25 17:53:29,694 INFO L226 Difference]: Without dead ends: 21 [2022-11-25 17:53:29,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:53:29,701 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 13 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:29,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 62 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:53:29,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-25 17:53:29,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-25 17:53:29,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 17:53:29,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2022-11-25 17:53:29,742 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 12 [2022-11-25 17:53:29,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:29,743 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2022-11-25 17:53:29,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:53:29,744 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2022-11-25 17:53:29,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:53:29,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:29,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:53:29,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:53:29,746 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:29,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:29,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1508496640, now seen corresponding path program 1 times [2022-11-25 17:53:29,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:29,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412278794] [2022-11-25 17:53:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:29,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:53:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:30,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:53:30,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:30,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412278794] [2022-11-25 17:53:30,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412278794] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:30,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:30,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-25 17:53:30,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741086092] [2022-11-25 17:53:30,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:30,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 17:53:30,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:30,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 17:53:30,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:53:30,078 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:53:30,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:30,189 INFO L93 Difference]: Finished difference Result 32 states and 40 transitions. [2022-11-25 17:53:30,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 17:53:30,190 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-11-25 17:53:30,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:30,191 INFO L225 Difference]: With dead ends: 32 [2022-11-25 17:53:30,193 INFO L226 Difference]: Without dead ends: 18 [2022-11-25 17:53:30,194 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:53:30,196 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 14 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:30,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 39 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:53:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-25 17:53:30,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-25 17:53:30,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 14 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:53:30,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-25 17:53:30,211 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 14 [2022-11-25 17:53:30,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:30,212 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-25 17:53:30,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 17:53:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-25 17:53:30,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:53:30,223 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:30,224 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:53:30,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:53:30,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:30,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:30,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1330690599, now seen corresponding path program 1 times [2022-11-25 17:53:30,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:30,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006861916] [2022-11-25 17:53:30,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:30,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:30,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-25 17:53:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:30,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-25 17:53:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:30,798 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:53:30,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:30,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006861916] [2022-11-25 17:53:30,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006861916] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:53:30,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [31428607] [2022-11-25 17:53:30,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:30,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:53:30,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:53:30,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:53:30,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:53:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:30,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-25 17:53:30,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:53:31,236 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:53:31,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:53:31,699 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:53:31,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [31428607] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:53:31,700 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:53:31,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2022-11-25 17:53:31,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122365789] [2022-11-25 17:53:31,701 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:53:31,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-25 17:53:31,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:31,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-25 17:53:31,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2022-11-25 17:53:31,706 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 19 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 17:53:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:31,924 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-11-25 17:53:31,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 17:53:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 19 [2022-11-25 17:53:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:31,926 INFO L225 Difference]: With dead ends: 23 [2022-11-25 17:53:31,926 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:53:31,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2022-11-25 17:53:31,932 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 16 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:31,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 55 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 17:53:31,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:53:31,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:53:31,935 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) [2022-11-25 17:53:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:53:31,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2022-11-25 17:53:31,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:31,936 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:53:31,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 1.588235294117647) internal successors, (27), 15 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 4 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-25 17:53:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:53:31,937 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:53:31,940 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:53:31,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:53:32,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:53:32,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:53:32,188 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:53:32,188 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:53:32,188 INFO L899 garLoopResultBuilder]: For program point L30(lines 30 34) no Hoare annotation was computed. [2022-11-25 17:53:32,189 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:53:32,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:53:32,191 INFO L902 garLoopResultBuilder]: At program point L28(lines 28 47) the Hoare annotation is: true [2022-11-25 17:53:32,191 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 45) no Hoare annotation was computed. [2022-11-25 17:53:32,192 INFO L899 garLoopResultBuilder]: For program point L45(line 45) no Hoare annotation was computed. [2022-11-25 17:53:32,192 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-11-25 17:53:32,192 INFO L895 garLoopResultBuilder]: At program point L41(line 41) the Hoare annotation is: (or (not (<= |ULTIMATE.start_main_~n~0#1| 0)) (= |ULTIMATE.start_main_~n~0#1| 0)) [2022-11-25 17:53:32,192 INFO L899 garLoopResultBuilder]: For program point L41-1(line 41) no Hoare annotation was computed. [2022-11-25 17:53:32,193 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 40) no Hoare annotation was computed. [2022-11-25 17:53:32,193 INFO L895 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: (and (= |addition_#in~m| addition_~m) (<= addition_~n 0) (not (= |addition_#in~n| 0)) (= |addition_#in~n| addition_~n)) [2022-11-25 17:53:32,193 INFO L899 garLoopResultBuilder]: For program point L22(lines 22 24) no Hoare annotation was computed. [2022-11-25 17:53:32,193 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2022-11-25 17:53:32,193 INFO L899 garLoopResultBuilder]: For program point additionFINAL(lines 15 25) no Hoare annotation was computed. [2022-11-25 17:53:32,194 INFO L895 garLoopResultBuilder]: At program point L20(line 20) the Hoare annotation is: (and (= |addition_#in~m| addition_~m) (<= 1 addition_~n) (= |addition_#in~n| addition_~n)) [2022-11-25 17:53:32,194 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 21) no Hoare annotation was computed. [2022-11-25 17:53:32,194 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-25 17:53:32,194 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 18) no Hoare annotation was computed. [2022-11-25 17:53:32,195 INFO L902 garLoopResultBuilder]: At program point additionENTRY(lines 15 25) the Hoare annotation is: true [2022-11-25 17:53:32,195 INFO L899 garLoopResultBuilder]: For program point additionEXIT(lines 15 25) no Hoare annotation was computed. [2022-11-25 17:53:32,208 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 17:53:32,211 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:53:32,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:53:32 BoogieIcfgContainer [2022-11-25 17:53:32,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:53:32,226 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:53:32,226 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:53:32,226 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:53:32,227 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:28" (3/4) ... [2022-11-25 17:53:32,230 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:53:32,238 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2022-11-25 17:53:32,244 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-25 17:53:32,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 17:53:32,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:53:32,245 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:53:32,287 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:53:32,287 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:53:32,288 INFO L158 Benchmark]: Toolchain (without parser) took 4225.55ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 142.9MB in the beginning and 165.4MB in the end (delta: -22.5MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2022-11-25 17:53:32,288 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 176.2MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:53:32,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.77ms. Allocated memory is still 176.2MB. Free memory was 142.3MB in the beginning and 132.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:53:32,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.06ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:53:32,289 INFO L158 Benchmark]: Boogie Preprocessor took 33.98ms. Allocated memory is still 176.2MB. Free memory was 131.0MB in the beginning and 130.4MB in the end (delta: 583.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:53:32,289 INFO L158 Benchmark]: RCFGBuilder took 330.80ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 119.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:53:32,290 INFO L158 Benchmark]: TraceAbstraction took 3476.98ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 119.0MB in the beginning and 168.5MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:53:32,290 INFO L158 Benchmark]: Witness Printer took 61.62ms. Allocated memory is still 216.0MB. Free memory was 168.5MB in the beginning and 165.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:53:32,292 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 176.2MB. Free memory is still 145.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.77ms. Allocated memory is still 176.2MB. Free memory was 142.3MB in the beginning and 132.5MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.06ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.98ms. Allocated memory is still 176.2MB. Free memory was 131.0MB in the beginning and 130.4MB in the end (delta: 583.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.80ms. Allocated memory is still 176.2MB. Free memory was 129.9MB in the beginning and 119.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3476.98ms. Allocated memory was 176.2MB in the beginning and 216.0MB in the end (delta: 39.8MB). Free memory was 119.0MB in the beginning and 168.5MB in the end (delta: -49.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.62ms. Allocated memory is still 216.0MB. Free memory was 168.5MB in the beginning and 165.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 45]: 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 2 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 53 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 156 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 205 IncrementalHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 44 mSDtfsCounter, 205 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 25, 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, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 34 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 4 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 467 SizeOfPredicates, 8 NumberOfNonLiveVariables, 77 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/12 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: 28]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 17:53:32,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc040c65-9dfb-4210-a18d-165264e04f6f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE