./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/cggmp2005b.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/cggmp2005b.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a --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 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c --- 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-b5237d8 [2022-11-21 13:43:56,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:43:56,269 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:43:56,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:43:56,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:43:56,307 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:43:56,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:43:56,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:43:56,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:43:56,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:43:56,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:43:56,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:43:56,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:43:56,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:43:56,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:43:56,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:43:56,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:43:56,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:43:56,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:43:56,346 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:43:56,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:43:56,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:43:56,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:43:56,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:43:56,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:43:56,363 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:43:56,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:43:56,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:43:56,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:43:56,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:43:56,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:43:56,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:43:56,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:43:56,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:43:56,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:43:56,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:43:56,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:43:56,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:43:56,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:43:56,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:43:56,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:43:56,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 13:43:56,430 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:43:56,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:43:56,431 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:43:56,431 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:43:56,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:43:56,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:43:56,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:43:56,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:43:56,434 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:43:56,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:43:56,435 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 13:43:56,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:43:56,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 13:43:56,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:43:56,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:43:56,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:43:56,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:43:56,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 13:43:56,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:43:56,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:43:56,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:43:56,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:43:56,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:43:56,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:43:56,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:43:56,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:43:56,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:43:56,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:43:56,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:43:56,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:43:56,440 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:43:56,440 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:43:56,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:43:56,441 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_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a85ef4e6caed20a9aa6e00fcf3a476ebe3f071202fc083a4545018fb19b4c9c [2022-11-21 13:43:56,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:43:56,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:43:56,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:43:56,829 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:43:56,830 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:43:56,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/loop-lit/cggmp2005b.i [2022-11-21 13:43:59,999 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:44:00,170 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:44:00,171 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/sv-benchmarks/c/loop-lit/cggmp2005b.i [2022-11-21 13:44:00,182 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/data/c4356d062/5a6de4b786c74fd98f4a700d6e929b79/FLAGea37633c1 [2022-11-21 13:44:00,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/data/c4356d062/5a6de4b786c74fd98f4a700d6e929b79 [2022-11-21 13:44:00,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:44:00,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:44:00,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:00,218 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:44:00,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:44:00,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,224 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8175353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00, skipping insertion in model container [2022-11-21 13:44:00,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:44:00,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:44:00,443 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2022-11-21 13:44:00,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:00,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:44:00,477 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/sv-benchmarks/c/loop-lit/cggmp2005b.i[895,908] [2022-11-21 13:44:00,481 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:00,493 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:44:00,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00 WrapperNode [2022-11-21 13:44:00,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:00,494 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:00,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:44:00,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:44:00,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,521 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2022-11-21 13:44:00,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:00,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:44:00,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:44:00,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:44:00,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,537 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,540 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:44:00,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:44:00,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:44:00,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:44:00,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (1/1) ... [2022-11-21 13:44:00,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:00,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:00,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:44:00,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:44:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 13:44:00,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 13:44:00,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:44:00,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:44:00,694 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:44:00,696 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:00,861 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:00,867 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:00,867 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-21 13:44:00,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:00 BoogieIcfgContainer [2022-11-21 13:44:00,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:00,872 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:00,886 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:00,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:00,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:44:00" (1/3) ... [2022-11-21 13:44:00,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7081638b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:00, skipping insertion in model container [2022-11-21 13:44:00,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:00" (2/3) ... [2022-11-21 13:44:00,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7081638b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:00, skipping insertion in model container [2022-11-21 13:44:00,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:00" (3/3) ... [2022-11-21 13:44:00,893 INFO L112 eAbstractionObserver]: Analyzing ICFG cggmp2005b.i [2022-11-21 13:44:00,930 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:00,930 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:44:01,016 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:01,037 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;@5133bb95, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:01,051 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:44:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 13:44:01,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:01,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 13:44:01,068 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:01,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:01,074 INFO L85 PathProgramCache]: Analyzing trace with hash 890522599, now seen corresponding path program 1 times [2022-11-21 13:44:01,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:01,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088618839] [2022-11-21 13:44:01,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:01,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:01,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:01,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:01,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:01,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088618839] [2022-11-21 13:44:01,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088618839] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:01,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:01,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 13:44:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944700234] [2022-11-21 13:44:01,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:01,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 13:44:01,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:01,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 13:44:01,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:01,336 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:01,351 INFO L93 Difference]: Finished difference Result 26 states and 38 transitions. [2022-11-21 13:44:01,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 13:44:01,354 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-21 13:44:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:01,362 INFO L225 Difference]: With dead ends: 26 [2022-11-21 13:44:01,362 INFO L226 Difference]: Without dead ends: 10 [2022-11-21 13:44:01,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 13:44:01,369 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:01,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-11-21 13:44:01,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2022-11-21 13:44:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 9 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2022-11-21 13:44:01,414 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 6 [2022-11-21 13:44:01,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:01,415 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2022-11-21 13:44:01,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,415 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2022-11-21 13:44:01,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 13:44:01,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:01,431 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 13:44:01,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:44:01,432 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:01,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:01,433 INFO L85 PathProgramCache]: Analyzing trace with hash 889658660, now seen corresponding path program 1 times [2022-11-21 13:44:01,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:01,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141373230] [2022-11-21 13:44:01,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:01,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:01,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:01,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:01,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141373230] [2022-11-21 13:44:01,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141373230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:01,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:01,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:01,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682503484] [2022-11-21 13:44:01,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:01,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:01,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:01,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:01,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:01,519 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:01,540 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-21 13:44:01,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:01,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-21 13:44:01,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:01,543 INFO L225 Difference]: With dead ends: 15 [2022-11-21 13:44:01,543 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 13:44:01,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:01,547 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:01,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:01,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 13:44:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-21 13:44:01,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2022-11-21 13:44:01,558 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 6 [2022-11-21 13:44:01,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:01,559 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2022-11-21 13:44:01,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,559 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2022-11-21 13:44:01,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 13:44:01,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:01,562 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:01,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 13:44:01,565 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:01,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:01,569 INFO L85 PathProgramCache]: Analyzing trace with hash 385385298, now seen corresponding path program 1 times [2022-11-21 13:44:01,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:01,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949280985] [2022-11-21 13:44:01,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:01,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:01,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:01,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:01,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949280985] [2022-11-21 13:44:01,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949280985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:01,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:01,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 13:44:01,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712796079] [2022-11-21 13:44:01,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:01,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 13:44:01,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:01,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 13:44:01,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:01,664 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:01,675 INFO L93 Difference]: Finished difference Result 20 states and 25 transitions. [2022-11-21 13:44:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 13:44:01,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-11-21 13:44:01,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:01,678 INFO L225 Difference]: With dead ends: 20 [2022-11-21 13:44:01,678 INFO L226 Difference]: Without dead ends: 12 [2022-11-21 13:44:01,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 13:44:01,680 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:01,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:01,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-21 13:44:01,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-21 13:44:01,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2022-11-21 13:44:01,685 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 10 [2022-11-21 13:44:01,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:01,685 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2022-11-21 13:44:01,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,686 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2022-11-21 13:44:01,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 13:44:01,686 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:01,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:01,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 13:44:01,687 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:01,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:01,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1336595214, now seen corresponding path program 1 times [2022-11-21 13:44:01,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:01,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65465721] [2022-11-21 13:44:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:01,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:44:01,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:01,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65465721] [2022-11-21 13:44:01,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65465721] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:01,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227245742] [2022-11-21 13:44:01,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:01,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:01,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:01,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:01,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-21 13:44:01,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:01,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-21 13:44:01,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:01,897 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:44:01,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:01,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-21 13:44:01,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227245742] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:01,930 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:01,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-21 13:44:01,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600117831] [2022-11-21 13:44:01,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:01,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-21 13:44:01,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:01,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-21 13:44:01,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:44:01,933 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:01,972 INFO L93 Difference]: Finished difference Result 28 states and 38 transitions. [2022-11-21 13:44:01,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:44:01,973 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 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 11 [2022-11-21 13:44:01,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:01,974 INFO L225 Difference]: With dead ends: 28 [2022-11-21 13:44:01,974 INFO L226 Difference]: Without dead ends: 24 [2022-11-21 13:44:01,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-21 13:44:01,977 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:01,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 38 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-21 13:44:01,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-11-21 13:44:01,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.391304347826087) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 32 transitions. [2022-11-21 13:44:01,985 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 32 transitions. Word has length 11 [2022-11-21 13:44:01,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:01,986 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 32 transitions. [2022-11-21 13:44:01,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:01,987 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2022-11-21 13:44:01,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-21 13:44:01,987 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:01,988 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:02,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:02,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:02,194 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:02,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:02,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1732682136, now seen corresponding path program 2 times [2022-11-21 13:44:02,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:02,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068187386] [2022-11-21 13:44:02,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:02,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:02,325 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-21 13:44:02,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068187386] [2022-11-21 13:44:02,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068187386] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-21 13:44:02,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141123160] [2022-11-21 13:44:02,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 13:44:02,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:02,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:02,328 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-21 13:44:02,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-21 13:44:02,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 13:44:02,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 13:44:02,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 13:44:02,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 13:44:02,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 13:44:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-21 13:44:02,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141123160] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 13:44:02,533 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-21 13:44:02,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-21 13:44:02,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355932776] [2022-11-21 13:44:02,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-21 13:44:02,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-21 13:44:02,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:02,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-21 13:44:02,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-11-21 13:44:02,535 INFO L87 Difference]: Start difference. First operand 24 states and 32 transitions. Second operand has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:02,601 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2022-11-21 13:44:02,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 13:44:02,602 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 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 23 [2022-11-21 13:44:02,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:02,602 INFO L225 Difference]: With dead ends: 45 [2022-11-21 13:44:02,602 INFO L226 Difference]: Without dead ends: 26 [2022-11-21 13:44:02,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-21 13:44:02,604 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:02,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 50 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-21 13:44:02,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-11-21 13:44:02,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2022-11-21 13:44:02,611 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 23 [2022-11-21 13:44:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:02,611 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2022-11-21 13:44:02,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 11 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-11-21 13:44:02,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-21 13:44:02,612 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:02,613 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:02,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-21 13:44:02,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-21 13:44:02,819 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:02,819 INFO L85 PathProgramCache]: Analyzing trace with hash 2081085976, now seen corresponding path program 3 times [2022-11-21 13:44:02,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:02,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233904825] [2022-11-21 13:44:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:02,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:03,001 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-11-21 13:44:03,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 13:44:03,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233904825] [2022-11-21 13:44:03,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233904825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:03,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:03,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:44:03,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507867229] [2022-11-21 13:44:03,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:03,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:44:03,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 13:44:03,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:44:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:44:03,004 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:03,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:03,035 INFO L93 Difference]: Finished difference Result 42 states and 58 transitions. [2022-11-21 13:44:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 13:44:03,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 25 [2022-11-21 13:44:03,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:03,036 INFO L225 Difference]: With dead ends: 42 [2022-11-21 13:44:03,036 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 13:44:03,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 13:44:03,038 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:03,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 13:44:03,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 13:44:03,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 13:44:03,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:03,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 13:44:03,040 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-21 13:44:03,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:03,040 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 13:44:03,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 13:44:03,041 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 13:44:03,041 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 13:44:03,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 13:44:03,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 13:44:03,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 13:44:03,101 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 37) the Hoare annotation is: (= |ULTIMATE.start_main_~k~0#1| 4) [2022-11-21 13:44:03,101 INFO L895 garLoopResultBuilder]: At program point L35-3(lines 29 38) the Hoare annotation is: (or (= |ULTIMATE.start_main_~k~0#1| 4) (and (= |ULTIMATE.start_main_~i~0#1| 0) (<= (+ |ULTIMATE.start_main_~j~0#1| 100) 0))) [2022-11-21 13:44:03,102 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 33) the Hoare annotation is: (or (= |ULTIMATE.start_main_~k~0#1| 4) (<= |ULTIMATE.start_main_~i~0#1| 1)) [2022-11-21 13:44:03,102 INFO L899 garLoopResultBuilder]: For program point L31-3(lines 31 33) no Hoare annotation was computed. [2022-11-21 13:44:03,104 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-21 13:44:03,104 INFO L902 garLoopResultBuilder]: At program point L40(lines 24 41) the Hoare annotation is: true [2022-11-21 13:44:03,104 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 13:44:03,104 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 13:44:03,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 13:44:03,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) no Hoare annotation was computed. [2022-11-21 13:44:03,105 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 13:44:03,105 INFO L899 garLoopResultBuilder]: For program point L29-2(lines 29 38) no Hoare annotation was computed. [2022-11-21 13:44:03,106 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-11-21 13:44:03,106 INFO L902 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2022-11-21 13:44:03,109 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2022-11-21 13:44:03,111 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:44:03,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:44:03 BoogieIcfgContainer [2022-11-21 13:44:03,132 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:44:03,133 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:44:03,133 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:44:03,134 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:44:03,135 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:00" (3/4) ... [2022-11-21 13:44:03,138 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 13:44:03,150 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-21 13:44:03,150 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 13:44:03,151 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-21 13:44:03,151 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 13:44:03,183 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 13:44:03,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:44:03,184 INFO L158 Benchmark]: Toolchain (without parser) took 2970.08ms. Allocated memory is still 163.6MB. Free memory was 125.4MB in the beginning and 70.4MB in the end (delta: 55.0MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,184 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 93.0MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:03,185 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.35ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 114.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.10ms. Allocated memory is still 163.6MB. Free memory was 114.9MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,186 INFO L158 Benchmark]: Boogie Preprocessor took 17.88ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 112.3MB in the end (delta: 924.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:03,186 INFO L158 Benchmark]: RCFGBuilder took 329.05ms. Allocated memory is still 163.6MB. Free memory was 112.3MB in the beginning and 103.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,187 INFO L158 Benchmark]: TraceAbstraction took 2259.91ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 72.5MB in the end (delta: 29.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,188 INFO L158 Benchmark]: Witness Printer took 50.15ms. Allocated memory is still 163.6MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:03,191 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 93.0MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.35ms. Allocated memory is still 163.6MB. Free memory was 124.9MB in the beginning and 114.9MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.10ms. Allocated memory is still 163.6MB. Free memory was 114.9MB in the beginning and 113.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.88ms. Allocated memory is still 163.6MB. Free memory was 113.3MB in the beginning and 112.3MB in the end (delta: 924.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 329.05ms. Allocated memory is still 163.6MB. Free memory was 112.3MB in the beginning and 103.2MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2259.91ms. Allocated memory is still 163.6MB. Free memory was 102.3MB in the beginning and 72.5MB in the end (delta: 29.8MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Witness Printer took 50.15ms. Allocated memory is still 163.6MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 169 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 69 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=5, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 23 NumberOfFragments, 25 HoareAnnotationTreeSize, 5 FomulaSimplifications, 100 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 242 SizeOfPredicates, 1 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 139/146 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: k == 4 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: k == 4 || i <= 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: k == 4 || (i == 0 && j + 100 <= 0) RESULT: Ultimate proved your program to be correct! [2022-11-21 13:44:03,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_910d1fbe-a780-4dc3-88b9-2c9f755c916a/bin/uautomizer-vX5HgA9Q3a/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