./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label24.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label24.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ --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 3b098f62dc80370f0e14e7fa6b354d0aae7e8d94738f84002290c368f38c01b4 --- 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-dbf71c6-m [2022-10-17 10:35:17,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:35:17,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:35:17,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:35:17,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:35:17,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:35:17,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:35:17,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:35:17,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:35:17,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:35:17,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:35:17,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:35:17,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:35:17,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:35:17,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:35:17,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:35:17,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:35:17,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:35:17,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:35:17,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:35:17,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:35:17,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:35:17,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:35:17,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:35:17,293 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:35:17,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:35:17,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:35:17,296 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:35:17,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:35:17,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:35:17,299 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:35:17,300 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:35:17,302 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:35:17,303 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:35:17,306 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:35:17,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:35:17,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:35:17,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:35:17,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:35:17,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:35:17,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:35:17,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:35:17,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:35:17,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:35:17,354 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:35:17,354 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:35:17,355 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:35:17,356 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:35:17,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:35:17,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:35:17,357 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:35:17,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:35:17,358 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:35:17,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:35:17,359 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:35:17,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:35:17,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:35:17,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:35:17,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:35:17,360 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:35:17,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:35:17,361 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:35:17,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:35:17,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:35:17,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:35:17,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:35:17,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:35:17,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:35:17,364 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:35:17,364 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:35:17,364 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:35:17,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:35:17,365 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:35:17,365 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:35:17,365 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:35:17,366 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b098f62dc80370f0e14e7fa6b354d0aae7e8d94738f84002290c368f38c01b4 [2022-10-17 10:35:17,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:35:17,668 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:35:17,670 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:35:17,672 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:35:17,672 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:35:17,674 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/eca-rers2012/Problem01_label24.c [2022-10-17 10:35:17,745 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/data/61f1dd08a/66da32f8580a4bfca20f0a8481c3b3f5/FLAG5113f4803 [2022-10-17 10:35:18,350 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:35:18,357 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/sv-benchmarks/c/eca-rers2012/Problem01_label24.c [2022-10-17 10:35:18,373 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/data/61f1dd08a/66da32f8580a4bfca20f0a8481c3b3f5/FLAG5113f4803 [2022-10-17 10:35:18,587 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/data/61f1dd08a/66da32f8580a4bfca20f0a8481c3b3f5 [2022-10-17 10:35:18,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:35:18,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:35:18,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:35:18,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:35:18,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:35:18,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:35:18" (1/1) ... [2022-10-17 10:35:18,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f33f032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:18, skipping insertion in model container [2022-10-17 10:35:18,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:35:18" (1/1) ... [2022-10-17 10:35:18,608 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:35:18,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:35:18,990 WARN L230 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_f078b77d-7f70-4a8d-94fe-0b890338d6d5/sv-benchmarks/c/eca-rers2012/Problem01_label24.c[17735,17748] [2022-10-17 10:35:19,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:35:19,036 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:35:19,139 WARN L230 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_f078b77d-7f70-4a8d-94fe-0b890338d6d5/sv-benchmarks/c/eca-rers2012/Problem01_label24.c[17735,17748] [2022-10-17 10:35:19,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:35:19,193 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:35:19,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19 WrapperNode [2022-10-17 10:35:19,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:35:19,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:35:19,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:35:19,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:35:19,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,321 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2022-10-17 10:35:19,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:35:19,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:35:19,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:35:19,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:35:19,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,380 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,385 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:35:19,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:35:19,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:35:19,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:35:19,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (1/1) ... [2022-10-17 10:35:19,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:35:19,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:19,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:35:19,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:35:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:35:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:35:19,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:35:19,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:35:19,645 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:35:19,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:35:20,822 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:35:20,831 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:35:20,831 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 10:35:20,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:35:20 BoogieIcfgContainer [2022-10-17 10:35:20,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:35:20,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:35:20,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:35:20,840 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:35:20,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:35:18" (1/3) ... [2022-10-17 10:35:20,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5795fe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:35:20, skipping insertion in model container [2022-10-17 10:35:20,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:35:19" (2/3) ... [2022-10-17 10:35:20,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5795fe17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:35:20, skipping insertion in model container [2022-10-17 10:35:20,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:35:20" (3/3) ... [2022-10-17 10:35:20,843 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label24.c [2022-10-17 10:35:20,862 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:35:20,862 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:35:20,918 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:35:20,925 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;@1c23d81d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:35:20,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:35:20,931 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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) [2022-10-17 10:35:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-10-17 10:35:20,943 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:20,944 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:20,945 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:20,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:20,950 INFO L85 PathProgramCache]: Analyzing trace with hash -342959657, now seen corresponding path program 1 times [2022-10-17 10:35:20,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:20,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191584347] [2022-10-17 10:35:20,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:20,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:21,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:35:21,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:21,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191584347] [2022-10-17 10:35:21,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191584347] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:21,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:35:21,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:35:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186491793] [2022-10-17 10:35:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:21,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:21,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:21,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:35:21,602 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 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 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) [2022-10-17 10:35:22,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:22,333 INFO L93 Difference]: Finished difference Result 553 states and 940 transitions. [2022-10-17 10:35:22,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:22,335 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 [2022-10-17 10:35:22,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:22,362 INFO L225 Difference]: With dead ends: 553 [2022-10-17 10:35:22,362 INFO L226 Difference]: Without dead ends: 266 [2022-10-17 10:35:22,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:35:22,376 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 87 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:22,377 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 72 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-17 10:35:22,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2022-10-17 10:35:22,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2022-10-17 10:35:22,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4339622641509433) internal successors, (380), 265 states have internal predecessors, (380), 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) [2022-10-17 10:35:22,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 380 transitions. [2022-10-17 10:35:22,458 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 380 transitions. Word has length 98 [2022-10-17 10:35:22,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:22,459 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 380 transitions. [2022-10-17 10:35:22,460 INFO L496 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) [2022-10-17 10:35:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 380 transitions. [2022-10-17 10:35:22,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-17 10:35:22,470 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:22,471 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-17 10:35:22,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:35:22,471 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:22,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:22,472 INFO L85 PathProgramCache]: Analyzing trace with hash 687887018, now seen corresponding path program 1 times [2022-10-17 10:35:22,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:22,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008059577] [2022-10-17 10:35:22,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:22,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:35:22,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:22,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008059577] [2022-10-17 10:35:22,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008059577] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:22,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:35:22,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:35:22,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213936499] [2022-10-17 10:35:22,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:22,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:22,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:22,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:22,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:35:22,667 INFO L87 Difference]: Start difference. First operand 266 states and 380 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2022-10-17 10:35:23,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:23,149 INFO L93 Difference]: Finished difference Result 792 states and 1135 transitions. [2022-10-17 10:35:23,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:23,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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 104 [2022-10-17 10:35:23,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:23,153 INFO L225 Difference]: With dead ends: 792 [2022-10-17 10:35:23,153 INFO L226 Difference]: Without dead ends: 528 [2022-10-17 10:35:23,154 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:35:23,155 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 142 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 327 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:23,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 36 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 327 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-17 10:35:23,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2022-10-17 10:35:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2022-10-17 10:35:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.3453510436432639) internal successors, (709), 527 states have internal predecessors, (709), 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) [2022-10-17 10:35:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 709 transitions. [2022-10-17 10:35:23,202 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 709 transitions. Word has length 104 [2022-10-17 10:35:23,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:23,203 INFO L495 AbstractCegarLoop]: Abstraction has 528 states and 709 transitions. [2022-10-17 10:35:23,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 2 states have internal predecessors, (104), 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) [2022-10-17 10:35:23,203 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 709 transitions. [2022-10-17 10:35:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-10-17 10:35:23,206 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:23,206 INFO L195 NwaCegarLoop]: trace histogram [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, 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] [2022-10-17 10:35:23,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:35:23,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:23,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:23,207 INFO L85 PathProgramCache]: Analyzing trace with hash 61656490, now seen corresponding path program 1 times [2022-10-17 10:35:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:23,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028573068] [2022-10-17 10:35:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:23,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:35:23,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:23,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028573068] [2022-10-17 10:35:23,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028573068] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:23,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:35:23,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:35:23,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330688431] [2022-10-17 10:35:23,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:23,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:35:23,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:23,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:35:23,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:35:23,730 INFO L87 Difference]: Start difference. First operand 528 states and 709 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-17 10:35:24,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:24,424 INFO L93 Difference]: Finished difference Result 1280 states and 1708 transitions. [2022-10-17 10:35:24,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:35:24,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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 105 [2022-10-17 10:35:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:24,429 INFO L225 Difference]: With dead ends: 1280 [2022-10-17 10:35:24,430 INFO L226 Difference]: Without dead ends: 659 [2022-10-17 10:35:24,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:35:24,433 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 131 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:24,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 81 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-17 10:35:24,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2022-10-17 10:35:24,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2022-10-17 10:35:24,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.1899696048632218) internal successors, (783), 658 states have internal predecessors, (783), 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) [2022-10-17 10:35:24,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 783 transitions. [2022-10-17 10:35:24,479 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 783 transitions. Word has length 105 [2022-10-17 10:35:24,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:24,479 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 783 transitions. [2022-10-17 10:35:24,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 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) [2022-10-17 10:35:24,480 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 783 transitions. [2022-10-17 10:35:24,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-10-17 10:35:24,483 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:24,483 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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, 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] [2022-10-17 10:35:24,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:35:24,484 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:24,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:24,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1795332504, now seen corresponding path program 1 times [2022-10-17 10:35:24,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:24,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418563282] [2022-10-17 10:35:24,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:24,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:24,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:35:24,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:24,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418563282] [2022-10-17 10:35:24,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418563282] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:24,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2102852429] [2022-10-17 10:35:24,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:24,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:24,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:24,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:24,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:35:24,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:24,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:24,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:25,153 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-17 10:35:25,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:25,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2102852429] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:25,154 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:25,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:25,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312247328] [2022-10-17 10:35:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:25,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:25,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:25,157 INFO L87 Difference]: Start difference. First operand 659 states and 783 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2022-10-17 10:35:25,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:25,557 INFO L93 Difference]: Finished difference Result 1578 states and 1906 transitions. [2022-10-17 10:35:25,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:25,561 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 [2022-10-17 10:35:25,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:25,567 INFO L225 Difference]: With dead ends: 1578 [2022-10-17 10:35:25,567 INFO L226 Difference]: Without dead ends: 921 [2022-10-17 10:35:25,568 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:25,576 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 42 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:25,578 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 173 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:35:25,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2022-10-17 10:35:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 790. [2022-10-17 10:35:25,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 790 states, 789 states have (on average 1.1888466413181242) internal successors, (938), 789 states have internal predecessors, (938), 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) [2022-10-17 10:35:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 790 states to 790 states and 938 transitions. [2022-10-17 10:35:25,614 INFO L78 Accepts]: Start accepts. Automaton has 790 states and 938 transitions. Word has length 113 [2022-10-17 10:35:25,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:25,615 INFO L495 AbstractCegarLoop]: Abstraction has 790 states and 938 transitions. [2022-10-17 10:35:25,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2022-10-17 10:35:25,616 INFO L276 IsEmpty]: Start isEmpty. Operand 790 states and 938 transitions. [2022-10-17 10:35:25,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-17 10:35:25,621 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:25,621 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:25,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:25,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:25,845 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:25,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:25,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1743575998, now seen corresponding path program 1 times [2022-10-17 10:35:25,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:25,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761978328] [2022-10-17 10:35:25,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:25,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 28 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 10:35:26,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:26,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761978328] [2022-10-17 10:35:26,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761978328] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:26,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045986747] [2022-10-17 10:35:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:26,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:26,129 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:26,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:35:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:26,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:26,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:26,434 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 10:35:26,435 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:26,435 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045986747] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:26,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:26,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:26,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974456049] [2022-10-17 10:35:26,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:26,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:26,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:26,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:26,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:26,443 INFO L87 Difference]: Start difference. First operand 790 states and 938 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2022-10-17 10:35:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:26,843 INFO L93 Difference]: Finished difference Result 2233 states and 2675 transitions. [2022-10-17 10:35:26,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:26,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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 129 [2022-10-17 10:35:26,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:26,856 INFO L225 Difference]: With dead ends: 2233 [2022-10-17 10:35:26,856 INFO L226 Difference]: Without dead ends: 1445 [2022-10-17 10:35:26,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:26,858 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 40 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:26,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 191 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:35:26,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2022-10-17 10:35:26,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1445. [2022-10-17 10:35:26,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.175207756232687) internal successors, (1697), 1444 states have internal predecessors, (1697), 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) [2022-10-17 10:35:26,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1697 transitions. [2022-10-17 10:35:26,901 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1697 transitions. Word has length 129 [2022-10-17 10:35:26,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:26,902 INFO L495 AbstractCegarLoop]: Abstraction has 1445 states and 1697 transitions. [2022-10-17 10:35:26,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 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) [2022-10-17 10:35:26,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1697 transitions. [2022-10-17 10:35:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-17 10:35:26,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:26,912 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:26,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:27,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:27,122 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:27,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:27,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1837027738, now seen corresponding path program 1 times [2022-10-17 10:35:27,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:27,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953741200] [2022-10-17 10:35:27,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:27,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 10:35:27,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953741200] [2022-10-17 10:35:27,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953741200] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:27,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596119756] [2022-10-17 10:35:27,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:27,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:27,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:27,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:27,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:35:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:27,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:27,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:27,571 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 10:35:27,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:27,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596119756] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:27,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:27,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:27,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844058438] [2022-10-17 10:35:27,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:27,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:27,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:27,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:27,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:27,573 INFO L87 Difference]: Start difference. First operand 1445 states and 1697 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2022-10-17 10:35:28,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:28,011 INFO L93 Difference]: Finished difference Result 4198 states and 4941 transitions. [2022-10-17 10:35:28,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:28,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 141 [2022-10-17 10:35:28,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:28,025 INFO L225 Difference]: With dead ends: 4198 [2022-10-17 10:35:28,025 INFO L226 Difference]: Without dead ends: 2755 [2022-10-17 10:35:28,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:28,028 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 127 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:28,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 17 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:35:28,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2022-10-17 10:35:28,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2362. [2022-10-17 10:35:28,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2361 states have (on average 1.1791613722998728) internal successors, (2784), 2361 states have internal predecessors, (2784), 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) [2022-10-17 10:35:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2784 transitions. [2022-10-17 10:35:28,096 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2784 transitions. Word has length 141 [2022-10-17 10:35:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:28,096 INFO L495 AbstractCegarLoop]: Abstraction has 2362 states and 2784 transitions. [2022-10-17 10:35:28,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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) [2022-10-17 10:35:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2784 transitions. [2022-10-17 10:35:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-10-17 10:35:28,102 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:28,102 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:28,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:28,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-10-17 10:35:28,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:28,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:28,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1620213825, now seen corresponding path program 1 times [2022-10-17 10:35:28,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:28,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135288276] [2022-10-17 10:35:28,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:28,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-10-17 10:35:28,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135288276] [2022-10-17 10:35:28,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135288276] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:28,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812270146] [2022-10-17 10:35:28,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:28,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:28,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:28,633 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:28,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:35:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:28,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:28,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:28,904 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 10:35:28,905 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:28,905 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812270146] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:28,905 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:28,905 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:28,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506760394] [2022-10-17 10:35:28,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:28,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:28,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:28,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:28,908 INFO L87 Difference]: Start difference. First operand 2362 states and 2784 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2022-10-17 10:35:29,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:29,355 INFO L93 Difference]: Finished difference Result 5115 states and 6004 transitions. [2022-10-17 10:35:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:29,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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 143 [2022-10-17 10:35:29,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:29,369 INFO L225 Difference]: With dead ends: 5115 [2022-10-17 10:35:29,369 INFO L226 Difference]: Without dead ends: 2624 [2022-10-17 10:35:29,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:29,373 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 36 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:29,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 186 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:35:29,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2624 states. [2022-10-17 10:35:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2624 to 2231. [2022-10-17 10:35:29,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2231 states, 2230 states have (on average 1.1443946188340808) internal successors, (2552), 2230 states have internal predecessors, (2552), 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) [2022-10-17 10:35:29,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2231 states to 2231 states and 2552 transitions. [2022-10-17 10:35:29,435 INFO L78 Accepts]: Start accepts. Automaton has 2231 states and 2552 transitions. Word has length 143 [2022-10-17 10:35:29,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:29,435 INFO L495 AbstractCegarLoop]: Abstraction has 2231 states and 2552 transitions. [2022-10-17 10:35:29,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 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) [2022-10-17 10:35:29,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2231 states and 2552 transitions. [2022-10-17 10:35:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-17 10:35:29,441 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:29,441 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:29,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:29,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:29,665 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:29,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:29,666 INFO L85 PathProgramCache]: Analyzing trace with hash -602434118, now seen corresponding path program 1 times [2022-10-17 10:35:29,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:29,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601315] [2022-10-17 10:35:29,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:29,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:29,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:29,935 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 42 proven. 3 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-17 10:35:29,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:29,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601315] [2022-10-17 10:35:29,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601315] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:29,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340682643] [2022-10-17 10:35:29,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:29,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:29,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:29,937 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:29,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-17 10:35:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:30,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:30,073 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 10:35:30,188 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:30,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340682643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:30,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:30,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:30,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282484] [2022-10-17 10:35:30,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:30,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:30,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:30,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:30,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:30,190 INFO L87 Difference]: Start difference. First operand 2231 states and 2552 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2022-10-17 10:35:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:30,540 INFO L93 Difference]: Finished difference Result 4591 states and 5249 transitions. [2022-10-17 10:35:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:30,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 146 [2022-10-17 10:35:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:30,552 INFO L225 Difference]: With dead ends: 4591 [2022-10-17 10:35:30,553 INFO L226 Difference]: Without dead ends: 2362 [2022-10-17 10:35:30,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:30,557 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 47 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:30,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 165 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:35:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2362 states. [2022-10-17 10:35:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2362 to 2362. [2022-10-17 10:35:30,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2362 states, 2361 states have (on average 1.1253706056755612) internal successors, (2657), 2361 states have internal predecessors, (2657), 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) [2022-10-17 10:35:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2362 states to 2362 states and 2657 transitions. [2022-10-17 10:35:30,617 INFO L78 Accepts]: Start accepts. Automaton has 2362 states and 2657 transitions. Word has length 146 [2022-10-17 10:35:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:30,618 INFO L495 AbstractCegarLoop]: Abstraction has 2362 states and 2657 transitions. [2022-10-17 10:35:30,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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) [2022-10-17 10:35:30,618 INFO L276 IsEmpty]: Start isEmpty. Operand 2362 states and 2657 transitions. [2022-10-17 10:35:30,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-10-17 10:35:30,624 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:35:30,624 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:30,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:30,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:30,849 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:35:30,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:35:30,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1831839731, now seen corresponding path program 1 times [2022-10-17 10:35:30,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:35:30,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339210980] [2022-10-17 10:35:30,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:30,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:35:30,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 56 proven. 3 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2022-10-17 10:35:31,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:35:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339210980] [2022-10-17 10:35:31,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339210980] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:35:31,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318551531] [2022-10-17 10:35:31,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:35:31,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:31,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:35:31,209 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:35:31,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-17 10:35:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:35:31,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:35:31,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:35:31,443 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-10-17 10:35:31,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:35:31,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318551531] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:35:31,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:35:31,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2022-10-17 10:35:31,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526398298] [2022-10-17 10:35:31,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:35:31,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:35:31,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:35:31,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:35:31,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:31,447 INFO L87 Difference]: Start difference. First operand 2362 states and 2657 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-10-17 10:35:31,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:35:31,847 INFO L93 Difference]: Finished difference Result 5768 states and 6485 transitions. [2022-10-17 10:35:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:35:31,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 175 [2022-10-17 10:35:31,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:35:31,849 INFO L225 Difference]: With dead ends: 5768 [2022-10-17 10:35:31,849 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:35:31,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:35:31,856 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 36 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:35:31,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 186 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:35:31,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:35:31,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:35:31,858 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) [2022-10-17 10:35:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:35:31,858 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2022-10-17 10:35:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:35:31,859 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:35:31,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2022-10-17 10:35:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:35:31,859 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:35:31,862 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:35:31,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-17 10:35:32,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:35:32,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:35:32,602 INFO L899 garLoopResultBuilder]: For program point L564(line 564) no Hoare annotation was computed. [2022-10-17 10:35:32,602 INFO L899 garLoopResultBuilder]: For program point L531(line 531) no Hoare annotation was computed. [2022-10-17 10:35:32,602 INFO L899 garLoopResultBuilder]: For program point L498(line 498) no Hoare annotation was computed. [2022-10-17 10:35:32,602 INFO L899 garLoopResultBuilder]: For program point L465(line 465) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L432(line 432) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L102(lines 102 400) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L598(line 598) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L334(lines 334 400) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L533-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L500-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L467-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,603 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 403) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L434-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L401-2(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L302(lines 302 400) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L170(lines 170 400) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L567(line 567) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L534(line 534) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L501(line 501) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L435(line 435) no Hoare annotation was computed. [2022-10-17 10:35:32,604 INFO L899 garLoopResultBuilder]: For program point L402(line 402) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 400) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 400) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 400) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 400) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L569-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L536-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L503-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L470-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,605 INFO L899 garLoopResultBuilder]: For program point L437-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 400) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L404-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L107(lines 107 400) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L41(lines 41 400) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L570(line 570) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L537(line 537) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L471(line 471) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L438(line 438) no Hoare annotation was computed. [2022-10-17 10:35:32,606 INFO L899 garLoopResultBuilder]: For program point L405(line 405) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L207(lines 207 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 400) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L572-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L539-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L506-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,607 INFO L899 garLoopResultBuilder]: For program point L473-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L440-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L407-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 400) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L573(line 573) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L540(line 540) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L507(line 507) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L474(line 474) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L441(line 441) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L408(line 408) no Hoare annotation was computed. [2022-10-17 10:35:32,608 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 400) no Hoare annotation was computed. [2022-10-17 10:35:32,609 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 400) no Hoare annotation was computed. [2022-10-17 10:35:32,612 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 400) no Hoare annotation was computed. [2022-10-17 10:35:32,612 INFO L899 garLoopResultBuilder]: For program point L343(lines 343 400) no Hoare annotation was computed. [2022-10-17 10:35:32,612 INFO L899 garLoopResultBuilder]: For program point L112(lines 112 400) no Hoare annotation was computed. [2022-10-17 10:35:32,612 INFO L899 garLoopResultBuilder]: For program point L575-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,612 INFO L899 garLoopResultBuilder]: For program point L542-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L509-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L476-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L443-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L410-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 400) no Hoare annotation was computed. [2022-10-17 10:35:32,613 INFO L899 garLoopResultBuilder]: For program point L146(lines 146 400) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L576(line 576) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L543(line 543) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L510(line 510) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L477(line 477) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L444(line 444) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L411(line 411) no Hoare annotation was computed. [2022-10-17 10:35:32,614 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 400) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L82(lines 82 400) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L578-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L545-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L512-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L479-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,615 INFO L899 garLoopResultBuilder]: For program point L446-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,616 INFO L899 garLoopResultBuilder]: For program point L413-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,616 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 400) no Hoare annotation was computed. [2022-10-17 10:35:32,616 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 400) no Hoare annotation was computed. [2022-10-17 10:35:32,616 INFO L899 garLoopResultBuilder]: For program point L579(line 579) no Hoare annotation was computed. [2022-10-17 10:35:32,617 INFO L899 garLoopResultBuilder]: For program point L546(line 546) no Hoare annotation was computed. [2022-10-17 10:35:32,617 INFO L899 garLoopResultBuilder]: For program point L513(line 513) no Hoare annotation was computed. [2022-10-17 10:35:32,617 INFO L899 garLoopResultBuilder]: For program point L480(line 480) no Hoare annotation was computed. [2022-10-17 10:35:32,617 INFO L899 garLoopResultBuilder]: For program point L447(line 447) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L414(line 414) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L183(lines 183 400) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L150(lines 150 400) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L382(lines 382 400) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 400) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L283(lines 283 400) no Hoare annotation was computed. [2022-10-17 10:35:32,618 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 400) no Hoare annotation was computed. [2022-10-17 10:35:32,619 INFO L899 garLoopResultBuilder]: For program point L581-1(lines 581 583) no Hoare annotation was computed. [2022-10-17 10:35:32,619 INFO L899 garLoopResultBuilder]: For program point L548-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,619 INFO L899 garLoopResultBuilder]: For program point L515-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,619 INFO L899 garLoopResultBuilder]: For program point L482-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,619 INFO L899 garLoopResultBuilder]: For program point L449-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L416-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L218(lines 218 400) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 400) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L582(line 582) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L549(line 549) no Hoare annotation was computed. [2022-10-17 10:35:32,620 INFO L899 garLoopResultBuilder]: For program point L516(line 516) no Hoare annotation was computed. [2022-10-17 10:35:32,621 INFO L899 garLoopResultBuilder]: For program point L483(line 483) no Hoare annotation was computed. [2022-10-17 10:35:32,621 INFO L899 garLoopResultBuilder]: For program point L450(line 450) no Hoare annotation was computed. [2022-10-17 10:35:32,621 INFO L899 garLoopResultBuilder]: For program point L417(line 417) no Hoare annotation was computed. [2022-10-17 10:35:32,621 INFO L899 garLoopResultBuilder]: For program point L154(lines 154 400) no Hoare annotation was computed. [2022-10-17 10:35:32,622 INFO L895 garLoopResultBuilder]: At program point L584(lines 40 585) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (and (<= ~a16~0 4) .cse0) (<= ~a20~0 0) (and (<= ~a17~0 0) .cse0) (<= ~a21~0 0) (and (= ~a12~0 8) (= ~a21~0 1) (= ~a7~0 0) (= ~a17~0 1) .cse0) (and (<= 6 ~a16~0) .cse0))) [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L551-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L518-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L485-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L452-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L419-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,623 INFO L899 garLoopResultBuilder]: For program point L188(lines 188 400) no Hoare annotation was computed. [2022-10-17 10:35:32,624 INFO L899 garLoopResultBuilder]: For program point L552(line 552) no Hoare annotation was computed. [2022-10-17 10:35:32,624 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2022-10-17 10:35:32,624 INFO L899 garLoopResultBuilder]: For program point L486(line 486) no Hoare annotation was computed. [2022-10-17 10:35:32,624 INFO L899 garLoopResultBuilder]: For program point L453(line 453) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L420(line 420) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 400) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L288(lines 288 400) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L255(lines 255 400) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L90(lines 90 400) no Hoare annotation was computed. [2022-10-17 10:35:32,625 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 400) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 400) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 400) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L902 garLoopResultBuilder]: At program point L587(lines 587 604) the Hoare annotation is: true [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point L554-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point L521-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,626 INFO L899 garLoopResultBuilder]: For program point L488-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L455-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L422-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 400) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 400) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L59(lines 59 400) no Hoare annotation was computed. [2022-10-17 10:35:32,627 INFO L899 garLoopResultBuilder]: For program point L555(line 555) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point L522(line 522) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point L489(line 489) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point L456(line 456) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point L423(line 423) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point L94(lines 94 400) no Hoare annotation was computed. [2022-10-17 10:35:32,628 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L557-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L524-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L491-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L458-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L392(lines 392 400) no Hoare annotation was computed. [2022-10-17 10:35:32,631 INFO L899 garLoopResultBuilder]: For program point L425-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 400) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L260(lines 260 400) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L558(line 558) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L525(line 525) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L492(line 492) no Hoare annotation was computed. [2022-10-17 10:35:32,632 INFO L899 garLoopResultBuilder]: For program point L459(line 459) no Hoare annotation was computed. [2022-10-17 10:35:32,633 INFO L899 garLoopResultBuilder]: For program point L426(line 426) no Hoare annotation was computed. [2022-10-17 10:35:32,633 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 400) no Hoare annotation was computed. [2022-10-17 10:35:32,633 INFO L899 garLoopResultBuilder]: For program point L162(lines 162 400) no Hoare annotation was computed. [2022-10-17 10:35:32,633 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 400) no Hoare annotation was computed. [2022-10-17 10:35:32,634 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 400) no Hoare annotation was computed. [2022-10-17 10:35:32,634 INFO L899 garLoopResultBuilder]: For program point L196(lines 196 400) no Hoare annotation was computed. [2022-10-17 10:35:32,634 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 400) no Hoare annotation was computed. [2022-10-17 10:35:32,634 INFO L899 garLoopResultBuilder]: For program point L560-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,635 INFO L895 garLoopResultBuilder]: At program point L593-2(lines 593 603) the Hoare annotation is: (let ((.cse0 (= ~a20~0 1))) (or (and (<= ~a16~0 4) .cse0) (<= ~a20~0 0) (and (<= ~a17~0 0) .cse0) (<= ~a21~0 0) (and (= ~a12~0 8) (= ~a21~0 1) (= ~a7~0 0) (= ~a17~0 1) .cse0) (and (<= 6 ~a16~0) .cse0))) [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L527-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L494-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L461-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L428-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 400) no Hoare annotation was computed. [2022-10-17 10:35:32,636 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 480) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point L561(line 561) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point L528(line 528) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point L495(line 495) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point L462(line 462) no Hoare annotation was computed. [2022-10-17 10:35:32,637 INFO L899 garLoopResultBuilder]: For program point L429(line 429) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 400) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 400) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L563-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L530-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L497-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,638 INFO L899 garLoopResultBuilder]: For program point L464-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,639 INFO L899 garLoopResultBuilder]: For program point L431-1(lines 40 585) no Hoare annotation was computed. [2022-10-17 10:35:32,639 INFO L899 garLoopResultBuilder]: For program point L365(lines 365 400) no Hoare annotation was computed. [2022-10-17 10:35:32,639 INFO L899 garLoopResultBuilder]: For program point L266(lines 266 400) no Hoare annotation was computed. [2022-10-17 10:35:32,639 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 400) no Hoare annotation was computed. [2022-10-17 10:35:32,639 INFO L899 garLoopResultBuilder]: For program point L134(lines 134 400) no Hoare annotation was computed. [2022-10-17 10:35:32,643 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:35:32,647 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:35:32,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:35:32 BoogieIcfgContainer [2022-10-17 10:35:32,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:35:32,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:35:32,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:35:32,668 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:35:32,669 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:35:20" (3/4) ... [2022-10-17 10:35:32,672 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:35:32,699 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 10:35:32,700 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 10:35:32,701 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:35:32,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:35:32,832 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:35:32,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:35:32,833 INFO L158 Benchmark]: Toolchain (without parser) took 14241.99ms. Allocated memory was 94.4MB in the beginning and 276.8MB in the end (delta: 182.5MB). Free memory was 53.5MB in the beginning and 162.0MB in the end (delta: -108.5MB). Peak memory consumption was 72.5MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,834 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:35:32,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.14ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 50.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,835 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.43ms. Allocated memory is still 94.4MB. Free memory was 50.3MB in the beginning and 44.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,835 INFO L158 Benchmark]: Boogie Preprocessor took 82.90ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 39.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,835 INFO L158 Benchmark]: RCFGBuilder took 1424.14ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 39.8MB in the beginning and 64.6MB in the end (delta: -24.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,836 INFO L158 Benchmark]: TraceAbstraction took 11831.31ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 63.8MB in the beginning and 172.4MB in the end (delta: -108.7MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,837 INFO L158 Benchmark]: Witness Printer took 164.66ms. Allocated memory is still 276.8MB. Free memory was 172.4MB in the beginning and 162.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:35:32,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 94.4MB. Free memory is still 72.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.14ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 50.3MB in the end (delta: 3.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.43ms. Allocated memory is still 94.4MB. Free memory was 50.3MB in the beginning and 44.7MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 82.90ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 39.8MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1424.14ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 39.8MB in the beginning and 64.6MB in the end (delta: -24.8MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11831.31ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 63.8MB in the beginning and 172.4MB in the end (delta: -108.7MB). Peak memory consumption was 111.2MB. Max. memory is 16.1GB. * Witness Printer took 164.66ms. Allocated memory is still 276.8MB. Free memory was 172.4MB in the beginning and 162.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. 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: 480]: 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, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.7s, OverallIterations: 9, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 688 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 688 mSDsluCounter, 1107 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 427 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3215 IncrementalHoareTripleChecker+Invalid, 3642 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 427 mSolverCounterUnsat, 1052 mSDtfsCounter, 3215 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 866 GetRequests, 844 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2362occurred in iteration=6, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 917 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 61 NumberOfFragments, 89 HoareAnnotationTreeSize, 3 FomulaSimplifications, 470 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 3 FomulaSimplificationsInter, 868 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 2001 NumberOfCodeBlocks, 2001 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1986 ConstructedInterpolants, 0 QuantifiedInterpolants, 5915 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1995 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 999/1017 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: 593]: Loop Invariant Derived loop invariant: (((((a16 <= 4 && a20 == 1) || a20 <= 0) || (a17 <= 0 && a20 == 1)) || a21 <= 0) || ((((a12 == 8 && a21 == 1) && a7 == 0) && a17 == 1) && a20 == 1)) || (6 <= a16 && a20 == 1) - InvariantResult [Line: 587]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((((a16 <= 4 && a20 == 1) || a20 <= 0) || (a17 <= 0 && a20 == 1)) || a21 <= 0) || ((((a12 == 8 && a21 == 1) && a7 == 0) && a17 == 1) && a20 == 1)) || (6 <= a16 && a20 == 1) RESULT: Ultimate proved your program to be correct! [2022-10-17 10:35:32,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f078b77d-7f70-4a8d-94fe-0b890338d6d5/bin/uautomizer-J5u9QxTXDZ/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