./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/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_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ae37599e398d4579dc13aa902332f9c984a4acd0674bb835a0d1e4887393314e --- 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 16:38:05,256 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:38:05,260 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:38:05,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:38:05,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:38:05,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:38:05,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:38:05,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:38:05,329 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:38:05,336 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:38:05,338 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:38:05,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:38:05,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:38:05,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:38:05,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:38:05,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:38:05,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:38:05,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:38:05,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:38:05,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:38:05,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:38:05,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:38:05,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:38:05,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:38:05,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:38:05,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:38:05,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:38:05,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:38:05,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:38:05,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:38:05,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:38:05,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:38:05,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:38:05,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:38:05,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:38:05,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:38:05,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:38:05,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:38:05,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:38:05,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:38:05,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:38:05,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-21 16:38:05,458 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:38:05,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:38:05,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:38:05,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:38:05,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:38:05,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:38:05,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:38:05,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:38:05,464 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:38:05,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:38:05,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:38:05,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:38:05,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:38:05,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:38:05,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:38:05,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:38:05,468 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-21 16:38:05,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:38:05,469 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:38:05,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:38:05,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:38:05,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:38:05,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:38:05,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:05,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:38:05,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:38:05,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:38:05,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:38:05,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:38:05,473 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:38:05,474 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:38:05,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:38:05,475 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_ff8efc8b-527f-46d5-913b-0205e561f334/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae37599e398d4579dc13aa902332f9c984a4acd0674bb835a0d1e4887393314e [2022-11-21 16:38:05,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:38:05,870 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:38:05,874 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:38:05,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:38:05,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:38:05,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2022-11-21 16:38:09,486 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:38:09,754 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:38:09,755 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/sv-benchmarks/c/termination-memory-alloca/subseq-alloca-1.i [2022-11-21 16:38:09,773 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/data/9469dba0f/8ec5b5eef13343b5b2bb7f94291a28ac/FLAG3c8f0bd8a [2022-11-21 16:38:09,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/data/9469dba0f/8ec5b5eef13343b5b2bb7f94291a28ac [2022-11-21 16:38:09,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:38:09,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:38:09,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:09,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:38:09,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:38:09,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:09" (1/1) ... [2022-11-21 16:38:09,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56113d6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:09, skipping insertion in model container [2022-11-21 16:38:09,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:09" (1/1) ... [2022-11-21 16:38:09,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:38:09,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:38:10,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:10,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:38:10,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:38:10,245 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:38:10,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10 WrapperNode [2022-11-21 16:38:10,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:38:10,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:10,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:38:10,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:38:10,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,296 INFO L138 Inliner]: procedures = 111, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 78 [2022-11-21 16:38:10,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:38:10,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:38:10,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:38:10,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:38:10,309 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,325 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:38:10,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:38:10,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:38:10,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:38:10,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (1/1) ... [2022-11-21 16:38:10,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:38:10,353 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:38:10,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:38:10,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:38:10,431 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:38:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:38:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:38:10,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:38:10,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:38:10,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:38:10,568 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:38:10,571 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:38:10,826 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:38:10,833 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:38:10,833 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 16:38:10,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:10 BoogieIcfgContainer [2022-11-21 16:38:10,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:38:10,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:38:10,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:38:10,875 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:38:10,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:38:09" (1/3) ... [2022-11-21 16:38:10,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6cd61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:10, skipping insertion in model container [2022-11-21 16:38:10,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:10" (2/3) ... [2022-11-21 16:38:10,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b6cd61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:38:10, skipping insertion in model container [2022-11-21 16:38:10,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:10" (3/3) ... [2022-11-21 16:38:10,879 INFO L112 eAbstractionObserver]: Analyzing ICFG subseq-alloca-1.i [2022-11-21 16:38:10,925 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:38:10,925 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-21 16:38:10,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:38:10,992 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;@3926f2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:38:10,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-21 16:38:11,013 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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 16:38:11,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:38:11,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:11,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:38:11,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:11,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:11,027 INFO L85 PathProgramCache]: Analyzing trace with hash 889510730, now seen corresponding path program 1 times [2022-11-21 16:38:11,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:11,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786419681] [2022-11-21 16:38:11,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:11,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:11,307 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 16:38:11,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:11,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786419681] [2022-11-21 16:38:11,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786419681] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:11,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:11,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:11,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170196217] [2022-11-21 16:38:11,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:11,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:11,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:11,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:11,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:11,361 INFO L87 Difference]: Start difference. First operand has 24 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 23 states have internal predecessors, (30), 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, 2 states have (on average 3.0) 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 16:38:11,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:11,430 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2022-11-21 16:38:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:11,433 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 16:38:11,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:11,443 INFO L225 Difference]: With dead ends: 50 [2022-11-21 16:38:11,444 INFO L226 Difference]: Without dead ends: 21 [2022-11-21 16:38:11,447 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 [2022-11-21 16:38:11,452 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:11,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 46 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-21 16:38:11,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 16. [2022-11-21 16:38:11,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.5) internal successors, (18), 15 states have internal predecessors, (18), 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 16:38:11,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-21 16:38:11,495 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 6 [2022-11-21 16:38:11,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:11,496 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-21 16:38:11,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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 16:38:11,497 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-21 16:38:11,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-21 16:38:11,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:11,498 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-21 16:38:11,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:38:11,499 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:11,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:11,501 INFO L85 PathProgramCache]: Analyzing trace with hash 889570312, now seen corresponding path program 1 times [2022-11-21 16:38:11,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:11,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597579258] [2022-11-21 16:38:11,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:11,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:11,592 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 16:38:11,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:11,593 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597579258] [2022-11-21 16:38:11,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597579258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:11,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:11,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:11,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110769390] [2022-11-21 16:38:11,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:11,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:11,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:11,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:11,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:11,598 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 3 states, 2 states have (on average 3.0) 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 16:38:11,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:11,617 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-11-21 16:38:11,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:11,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) 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 16:38:11,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:11,619 INFO L225 Difference]: With dead ends: 16 [2022-11-21 16:38:11,619 INFO L226 Difference]: Without dead ends: 15 [2022-11-21 16:38:11,620 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 [2022-11-21 16:38:11,622 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:11,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 8 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:11,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-21 16:38:11,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 12. [2022-11-21 16:38:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 11 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 16:38:11,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2022-11-21 16:38:11,628 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 6 [2022-11-21 16:38:11,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:11,628 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2022-11-21 16:38:11,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) 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 16:38:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2022-11-21 16:38:11,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:38:11,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:11,630 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:11,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:38:11,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:11,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:11,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1805028903, now seen corresponding path program 1 times [2022-11-21 16:38:11,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:11,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450289336] [2022-11-21 16:38:11,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:11,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:11,714 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 16:38:11,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:11,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450289336] [2022-11-21 16:38:11,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450289336] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:11,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:11,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:11,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552464389] [2022-11-21 16:38:11,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:11,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:11,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:11,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:11,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:11,719 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:38:11,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:11,733 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2022-11-21 16:38:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:11,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-21 16:38:11,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:11,735 INFO L225 Difference]: With dead ends: 12 [2022-11-21 16:38:11,735 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 16:38:11,736 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 [2022-11-21 16:38:11,737 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 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 16:38:11,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:11,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 16:38:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-21 16:38:11,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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 16:38:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-21 16:38:11,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 7 [2022-11-21 16:38:11,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:11,742 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-21 16:38:11,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 16:38:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-21 16:38:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:38:11,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:11,744 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:11,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:38:11,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:11,746 INFO L85 PathProgramCache]: Analyzing trace with hash 121321196, now seen corresponding path program 1 times [2022-11-21 16:38:11,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:11,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055580886] [2022-11-21 16:38:11,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:11,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:11,910 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 16:38:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:11,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055580886] [2022-11-21 16:38:11,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055580886] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:11,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:11,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:11,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248896799] [2022-11-21 16:38:11,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:11,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:11,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:11,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:11,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:11,914 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 16:38:11,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:11,947 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-11-21 16:38:11,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:11,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-21 16:38:11,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:11,948 INFO L225 Difference]: With dead ends: 17 [2022-11-21 16:38:11,949 INFO L226 Difference]: Without dead ends: 16 [2022-11-21 16:38:11,949 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 [2022-11-21 16:38:11,951 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:11,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-11-21 16:38:11,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-11-21 16:38:11,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 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 16:38:11,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-11-21 16:38:11,957 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 8 [2022-11-21 16:38:11,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:11,957 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-11-21 16:38:11,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 16:38:11,958 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-11-21 16:38:11,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 16:38:11,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:11,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:11,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:38:11,960 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:11,961 INFO L85 PathProgramCache]: Analyzing trace with hash 123168238, now seen corresponding path program 1 times [2022-11-21 16:38:11,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:11,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191692575] [2022-11-21 16:38:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:11,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:12,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:38:12,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:12,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191692575] [2022-11-21 16:38:12,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191692575] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:12,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:12,073 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:12,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641744603] [2022-11-21 16:38:12,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:12,074 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:12,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:12,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:12,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:12,076 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 16:38:12,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:12,100 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2022-11-21 16:38:12,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:12,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-11-21 16:38:12,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:12,101 INFO L225 Difference]: With dead ends: 15 [2022-11-21 16:38:12,102 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 16:38:12,102 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 [2022-11-21 16:38:12,104 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:12,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 7 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:12,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 16:38:12,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 10. [2022-11-21 16:38:12,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 9 states have internal predecessors, (11), 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 16:38:12,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2022-11-21 16:38:12,115 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 8 [2022-11-21 16:38:12,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:12,115 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2022-11-21 16:38:12,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 16:38:12,116 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2022-11-21 16:38:12,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:38:12,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:38:12,117 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:38:12,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:38:12,117 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-21 16:38:12,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:38:12,118 INFO L85 PathProgramCache]: Analyzing trace with hash -534010167, now seen corresponding path program 1 times [2022-11-21 16:38:12,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:38:12,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217438824] [2022-11-21 16:38:12,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:38:12,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:38:12,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:38:12,186 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 16:38:12,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:38:12,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217438824] [2022-11-21 16:38:12,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217438824] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:38:12,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:38:12,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:38:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588633611] [2022-11-21 16:38:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:38:12,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:38:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:38:12,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:38:12,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:38:12,190 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16:38:12,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:38:12,208 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2022-11-21 16:38:12,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:38:12,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-11-21 16:38:12,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:38:12,209 INFO L225 Difference]: With dead ends: 10 [2022-11-21 16:38:12,209 INFO L226 Difference]: Without dead ends: 0 [2022-11-21 16:38:12,210 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 [2022-11-21 16:38:12,211 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-21 16:38:12,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:38:12,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-21 16:38:12,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-21 16:38:12,214 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 16:38:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-21 16:38:12,214 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2022-11-21 16:38:12,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:38:12,214 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-21 16:38:12,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 16:38:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-21 16:38:12,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-21 16:38:12,218 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-21 16:38:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-21 16:38:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-21 16:38:12,219 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-21 16:38:12,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:38:12,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-21 16:38:12,239 INFO L899 garLoopResultBuilder]: For program point L551-6(lines 551 556) no Hoare annotation was computed. [2022-11-21 16:38:12,240 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-11-21 16:38:12,240 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-11-21 16:38:12,240 INFO L899 garLoopResultBuilder]: For program point L572-1(line 572) no Hoare annotation was computed. [2022-11-21 16:38:12,240 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 554) no Hoare annotation was computed. [2022-11-21 16:38:12,241 INFO L899 garLoopResultBuilder]: For program point L552-2(lines 552 554) no Hoare annotation was computed. [2022-11-21 16:38:12,242 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-21 16:38:12,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 571) no Hoare annotation was computed. [2022-11-21 16:38:12,242 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-21 16:38:12,243 INFO L902 garLoopResultBuilder]: At program point L573(lines 560 574) the Hoare annotation is: true [2022-11-21 16:38:12,243 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-21 16:38:12,244 INFO L899 garLoopResultBuilder]: For program point L557(lines 557 558) no Hoare annotation was computed. [2022-11-21 16:38:12,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 571) no Hoare annotation was computed. [2022-11-21 16:38:12,244 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-21 16:38:12,245 INFO L899 garLoopResultBuilder]: For program point L566-1(lines 566 568) no Hoare annotation was computed. [2022-11-21 16:38:12,246 INFO L902 garLoopResultBuilder]: At program point L558(lines 547 559) the Hoare annotation is: true [2022-11-21 16:38:12,247 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 572) no Hoare annotation was computed. [2022-11-21 16:38:12,247 INFO L899 garLoopResultBuilder]: For program point L571(line 571) no Hoare annotation was computed. [2022-11-21 16:38:12,248 INFO L899 garLoopResultBuilder]: For program point L571-1(line 571) no Hoare annotation was computed. [2022-11-21 16:38:12,248 INFO L899 garLoopResultBuilder]: For program point L563(lines 563 565) no Hoare annotation was computed. [2022-11-21 16:38:12,249 INFO L899 garLoopResultBuilder]: For program point L563-2(lines 560 574) no Hoare annotation was computed. [2022-11-21 16:38:12,249 INFO L899 garLoopResultBuilder]: For program point L551-1(line 551) no Hoare annotation was computed. [2022-11-21 16:38:12,249 INFO L899 garLoopResultBuilder]: For program point L551-3(lines 551 556) no Hoare annotation was computed. [2022-11-21 16:38:12,250 INFO L902 garLoopResultBuilder]: At program point L551-5(lines 551 556) the Hoare annotation is: true [2022-11-21 16:38:12,256 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-21 16:38:12,259 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:38:12,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:38:12 BoogieIcfgContainer [2022-11-21 16:38:12,283 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:38:12,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:38:12,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:38:12,285 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:38:12,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:38:10" (3/4) ... [2022-11-21 16:38:12,293 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-21 16:38:12,305 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-21 16:38:12,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-21 16:38:12,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:38:12,306 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-21 16:38:12,352 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 16:38:12,353 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:38:12,354 INFO L158 Benchmark]: Toolchain (without parser) took 2558.33ms. Allocated memory was 151.0MB in the beginning and 184.5MB in the end (delta: 33.6MB). Free memory was 108.9MB in the beginning and 97.0MB in the end (delta: 12.0MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,354 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:38:12,354 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.61ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 93.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,355 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 151.0MB. Free memory was 93.1MB in the beginning and 91.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,355 INFO L158 Benchmark]: Boogie Preprocessor took 31.67ms. Allocated memory is still 151.0MB. Free memory was 91.2MB in the beginning and 89.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,356 INFO L158 Benchmark]: RCFGBuilder took 510.33ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 77.8MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,356 INFO L158 Benchmark]: TraceAbstraction took 1414.73ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 99.9MB in the end (delta: 53.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,357 INFO L158 Benchmark]: Witness Printer took 68.11ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 97.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:38:12,359 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.61ms. Allocated memory is still 151.0MB. Free memory was 108.7MB in the beginning and 93.1MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 151.0MB. Free memory was 93.1MB in the beginning and 91.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.67ms. Allocated memory is still 151.0MB. Free memory was 91.2MB in the beginning and 89.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 510.33ms. Allocated memory is still 151.0MB. Free memory was 89.8MB in the beginning and 77.8MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1414.73ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 99.9MB in the end (delta: 53.5MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. * Witness Printer took 68.11ms. Allocated memory is still 184.5MB. Free memory was 99.9MB in the beginning and 97.0MB in the end (delta: 3.0MB). 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: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 572]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 96 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 36 IncrementalHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 64 mSDtfsCounter, 36 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 551]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 560]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 547]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-21 16:38:12,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff8efc8b-527f-46d5-913b-0205e561f334/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