./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-tiling/rewnif.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-tiling/rewnif.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8 --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 32bit --witnessprinter.graph.data.programhash 5ee21d1db2a363655b71bcb8ab92ef8d6b86a57a4ebbd79d98cb55c59d3ed1f5 --- 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-2329fc7 [2022-12-13 13:16:16,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:16:16,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:16:16,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:16:16,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:16:16,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:16:16,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:16:16,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:16:16,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:16:16,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:16:16,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:16:16,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:16:16,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:16:16,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:16:16,183 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:16:16,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:16:16,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:16:16,186 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:16:16,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:16:16,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:16:16,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:16:16,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:16:16,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:16:16,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:16:16,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:16:16,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:16:16,198 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:16:16,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:16:16,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:16:16,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:16:16,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:16:16,202 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:16:16,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:16:16,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:16:16,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:16:16,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:16:16,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:16:16,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:16:16,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:16:16,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:16:16,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:16:16,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 13:16:16,229 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:16:16,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:16:16,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:16:16,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:16:16,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:16:16,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:16:16,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:16:16,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:16:16,231 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:16:16,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:16:16,232 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:16:16,232 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:16:16,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:16:16,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:16:16,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:16:16,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:16:16,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:16:16,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:16:16,233 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:16:16,233 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:16:16,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:16:16,234 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:16:16,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:16:16,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:16:16,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:16:16,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:16:16,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:16:16,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:16:16,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:16:16,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:16:16,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:16:16,236 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:16:16,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:16:16,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:16:16,236 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:16:16,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:16:16,237 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:16:16,237 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ee21d1db2a363655b71bcb8ab92ef8d6b86a57a4ebbd79d98cb55c59d3ed1f5 [2022-12-13 13:16:16,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:16:16,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:16:16,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:16:16,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:16:16,439 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:16:16,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-tiling/rewnif.c [2022-12-13 13:16:19,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:16:19,214 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:16:19,214 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/sv-benchmarks/c/array-tiling/rewnif.c [2022-12-13 13:16:19,218 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/data/abc707be3/2c98454b97e94c329bd7f992a2278639/FLAG5e3cefe6e [2022-12-13 13:16:19,229 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/data/abc707be3/2c98454b97e94c329bd7f992a2278639 [2022-12-13 13:16:19,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:16:19,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:16:19,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:16:19,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:16:19,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:16:19,236 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fdbbe9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19, skipping insertion in model container [2022-12-13 13:16:19,237 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:16:19,251 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:16:19,364 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_79655325-eed5-438d-af3a-04e8e1fef94e/sv-benchmarks/c/array-tiling/rewnif.c[397,410] [2022-12-13 13:16:19,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:16:19,384 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:16:19,393 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_79655325-eed5-438d-af3a-04e8e1fef94e/sv-benchmarks/c/array-tiling/rewnif.c[397,410] [2022-12-13 13:16:19,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:16:19,405 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:16:19,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19 WrapperNode [2022-12-13 13:16:19,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:16:19,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:16:19,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:16:19,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:16:19,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,428 INFO L138 Inliner]: procedures = 16, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 57 [2022-12-13 13:16:19,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:16:19,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:16:19,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:16:19,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:16:19,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:16:19,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:16:19,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:16:19,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:16:19,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (1/1) ... [2022-12-13 13:16:19,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:16:19,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:19,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:16:19,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:16:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:16:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:16:19,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:16:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 13:16:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:16:19,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:16:19,497 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 13:16:19,549 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:16:19,550 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:16:19,665 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:16:19,671 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:16:19,671 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:16:19,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:19 BoogieIcfgContainer [2022-12-13 13:16:19,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:16:19,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:16:19,676 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:16:19,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:16:19,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:16:19" (1/3) ... [2022-12-13 13:16:19,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613f61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:19, skipping insertion in model container [2022-12-13 13:16:19,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:16:19" (2/3) ... [2022-12-13 13:16:19,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7613f61a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:16:19, skipping insertion in model container [2022-12-13 13:16:19,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:19" (3/3) ... [2022-12-13 13:16:19,682 INFO L112 eAbstractionObserver]: Analyzing ICFG rewnif.c [2022-12-13 13:16:19,700 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:16:19,700 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 13:16:19,744 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:16:19,750 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;@405f8c41, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:16:19,750 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 13:16:19,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 24 states have (on average 1.625) internal successors, (39), 32 states have internal predecessors, (39), 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) [2022-12-13 13:16:19,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 13:16:19,758 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:19,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:16:19,758 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:19,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:19,762 INFO L85 PathProgramCache]: Analyzing trace with hash 28693955, now seen corresponding path program 1 times [2022-12-13 13:16:19,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:19,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044781664] [2022-12-13 13:16:19,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:19,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:19,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:19,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:19,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044781664] [2022-12-13 13:16:19,903 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044781664] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:19,903 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:19,903 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:16:19,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291776266] [2022-12-13 13:16:19,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:19,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:16:19,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:19,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:16:19,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:16:19,931 INFO L87 Difference]: Start difference. First operand has 33 states, 24 states have (on average 1.625) internal successors, (39), 32 states have internal predecessors, (39), 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 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 13:16:19,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:19,994 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-12-13 13:16:19,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:16:19,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-12-13 13:16:19,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:20,002 INFO L225 Difference]: With dead ends: 77 [2022-12-13 13:16:20,002 INFO L226 Difference]: Without dead ends: 49 [2022-12-13 13:16:20,004 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 [2022-12-13 13:16:20,006 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 24 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:20,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 40 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:20,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-12-13 13:16:20,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2022-12-13 13:16:20,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 33 states have internal predecessors, (38), 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) [2022-12-13 13:16:20,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 38 transitions. [2022-12-13 13:16:20,031 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 38 transitions. Word has length 5 [2022-12-13 13:16:20,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:20,031 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 38 transitions. [2022-12-13 13:16:20,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-12-13 13:16:20,031 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2022-12-13 13:16:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 13:16:20,032 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:20,032 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:20,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:16:20,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:20,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:20,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1311853300, now seen corresponding path program 1 times [2022-12-13 13:16:20,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:20,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059802730] [2022-12-13 13:16:20,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:20,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:20,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059802730] [2022-12-13 13:16:20,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059802730] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:20,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:20,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:16:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748080152] [2022-12-13 13:16:20,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:20,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:16:20,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:20,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:16:20,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:16:20,094 INFO L87 Difference]: Start difference. First operand 34 states and 38 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) [2022-12-13 13:16:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:20,135 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-12-13 13:16:20,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:16:20,136 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 [2022-12-13 13:16:20,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:20,136 INFO L225 Difference]: With dead ends: 65 [2022-12-13 13:16:20,137 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 13:16:20,137 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 [2022-12-13 13:16:20,139 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 30 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 13:16:20,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2022-12-13 13:16:20,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 33 states have internal predecessors, (36), 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) [2022-12-13 13:16:20,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2022-12-13 13:16:20,144 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 10 [2022-12-13 13:16:20,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:20,145 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2022-12-13 13:16:20,145 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) [2022-12-13 13:16:20,145 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2022-12-13 13:16:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 13:16:20,145 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:20,145 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:20,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:16:20,146 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:20,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:20,146 INFO L85 PathProgramCache]: Analyzing trace with hash 571677780, now seen corresponding path program 1 times [2022-12-13 13:16:20,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:20,147 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065608828] [2022-12-13 13:16:20,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:20,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065608828] [2022-12-13 13:16:20,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065608828] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:20,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:20,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:16:20,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798330476] [2022-12-13 13:16:20,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:20,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:16:20,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:20,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:16:20,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:16:20,242 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-12-13 13:16:20,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:20,296 INFO L93 Difference]: Finished difference Result 48 states and 50 transitions. [2022-12-13 13:16:20,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:16:20,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) Word has length 12 [2022-12-13 13:16:20,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:20,297 INFO L225 Difference]: With dead ends: 48 [2022-12-13 13:16:20,297 INFO L226 Difference]: Without dead ends: 46 [2022-12-13 13:16:20,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:16:20,299 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:20,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 42 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:20,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-12-13 13:16:20,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 38. [2022-12-13 13:16:20,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 37 states have internal predecessors, (40), 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) [2022-12-13 13:16:20,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2022-12-13 13:16:20,304 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 12 [2022-12-13 13:16:20,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:20,304 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2022-12-13 13:16:20,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 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) [2022-12-13 13:16:20,305 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2022-12-13 13:16:20,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 13:16:20,305 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:20,305 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:20,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:16:20,306 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:20,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:20,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1307478222, now seen corresponding path program 1 times [2022-12-13 13:16:20,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:20,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736307780] [2022-12-13 13:16:20,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,381 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:20,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736307780] [2022-12-13 13:16:20,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736307780] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:20,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337477159] [2022-12-13 13:16:20,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:20,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:20,383 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:20,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:16:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:16:20,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:20,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:20,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337477159] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:20,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:20,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-12-13 13:16:20,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34660514] [2022-12-13 13:16:20,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:20,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:16:20,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:20,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:16:20,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:16:20,470 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-12-13 13:16:20,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:20,508 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2022-12-13 13:16:20,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:16:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-12-13 13:16:20,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:20,509 INFO L225 Difference]: With dead ends: 46 [2022-12-13 13:16:20,509 INFO L226 Difference]: Without dead ends: 43 [2022-12-13 13:16:20,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:20,511 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:20,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 25 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:20,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-13 13:16:20,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 35. [2022-12-13 13:16:20,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 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) [2022-12-13 13:16:20,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-12-13 13:16:20,515 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 15 [2022-12-13 13:16:20,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:20,516 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-12-13 13:16:20,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-12-13 13:16:20,516 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-12-13 13:16:20,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 13:16:20,517 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:20,517 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:20,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:16:20,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:20,719 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:20,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1877119265, now seen corresponding path program 1 times [2022-12-13 13:16:20,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:20,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692839561] [2022-12-13 13:16:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692839561] [2022-12-13 13:16:20,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692839561] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:20,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221387565] [2022-12-13 13:16:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:20,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:20,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:20,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:20,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 13:16:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:20,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:16:20,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:20,937 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:20,973 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:16:20,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221387565] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:20,974 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:20,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-12-13 13:16:20,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396381588] [2022-12-13 13:16:20,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:20,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:20,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:20,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:20,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:20,976 INFO L87 Difference]: Start difference. First operand 35 states and 37 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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) [2022-12-13 13:16:21,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:21,056 INFO L93 Difference]: Finished difference Result 60 states and 67 transitions. [2022-12-13 13:16:21,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 13:16:21,056 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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 16 [2022-12-13 13:16:21,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:21,057 INFO L225 Difference]: With dead ends: 60 [2022-12-13 13:16:21,057 INFO L226 Difference]: Without dead ends: 57 [2022-12-13 13:16:21,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:16:21,058 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:21,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 46 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:16:21,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-12-13 13:16:21,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 47. [2022-12-13 13:16:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 46 states have internal predecessors, (52), 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) [2022-12-13 13:16:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 52 transitions. [2022-12-13 13:16:21,063 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 52 transitions. Word has length 16 [2022-12-13 13:16:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:21,064 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 52 transitions. [2022-12-13 13:16:21,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 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) [2022-12-13 13:16:21,064 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 52 transitions. [2022-12-13 13:16:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 13:16:21,064 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:21,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:21,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 13:16:21,265 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:21,266 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:21,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:21,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1798686409, now seen corresponding path program 1 times [2022-12-13 13:16:21,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:21,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150482349] [2022-12-13 13:16:21,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:21,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:21,424 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:16:21,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:21,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150482349] [2022-12-13 13:16:21,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150482349] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:21,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:21,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:16:21,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135498866] [2022-12-13 13:16:21,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:21,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:16:21,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:21,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:16:21,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:16:21,427 INFO L87 Difference]: Start difference. First operand 47 states and 52 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-12-13 13:16:21,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:21,467 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2022-12-13 13:16:21,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:16:21,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 20 [2022-12-13 13:16:21,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:21,468 INFO L225 Difference]: With dead ends: 55 [2022-12-13 13:16:21,468 INFO L226 Difference]: Without dead ends: 53 [2022-12-13 13:16:21,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:16:21,470 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:21,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 33 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:21,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-12-13 13:16:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-12-13 13:16:21,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 49 states have (on average 1.183673469387755) internal successors, (58), 52 states have internal predecessors, (58), 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) [2022-12-13 13:16:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 58 transitions. [2022-12-13 13:16:21,475 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 58 transitions. Word has length 20 [2022-12-13 13:16:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:21,475 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 58 transitions. [2022-12-13 13:16:21,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-12-13 13:16:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 58 transitions. [2022-12-13 13:16:21,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 13:16:21,476 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:21,476 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:21,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:16:21,477 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:21,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:21,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1448293474, now seen corresponding path program 1 times [2022-12-13 13:16:21,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:21,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177098385] [2022-12-13 13:16:21,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:21,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:21,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:16:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:21,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177098385] [2022-12-13 13:16:21,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177098385] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:21,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291849647] [2022-12-13 13:16:21,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:21,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:21,562 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:21,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 13:16:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:21,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:16:21,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:21,670 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:16:21,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-13 13:16:21,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291849647] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:21,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:21,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 13:16:21,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226749218] [2022-12-13 13:16:21,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:21,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:21,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:21,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:21,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:21,709 INFO L87 Difference]: Start difference. First operand 53 states and 58 transitions. Second operand has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-12-13 13:16:21,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:21,804 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2022-12-13 13:16:21,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:21,805 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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 26 [2022-12-13 13:16:21,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:21,805 INFO L225 Difference]: With dead ends: 79 [2022-12-13 13:16:21,805 INFO L226 Difference]: Without dead ends: 64 [2022-12-13 13:16:21,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2022-12-13 13:16:21,806 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 37 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:21,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 35 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:16:21,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-12-13 13:16:21,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2022-12-13 13:16:21,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 59 states have (on average 1.152542372881356) internal successors, (68), 62 states have internal predecessors, (68), 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) [2022-12-13 13:16:21,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2022-12-13 13:16:21,811 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 26 [2022-12-13 13:16:21,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:21,811 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2022-12-13 13:16:21,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.5) internal successors, (45), 10 states have internal predecessors, (45), 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) [2022-12-13 13:16:21,812 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2022-12-13 13:16:21,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-13 13:16:21,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:21,812 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:21,816 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 13:16:22,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-12-13 13:16:22,014 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:22,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:22,014 INFO L85 PathProgramCache]: Analyzing trace with hash -901832950, now seen corresponding path program 1 times [2022-12-13 13:16:22,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:22,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893798926] [2022-12-13 13:16:22,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:22,067 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-12-13 13:16:22,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:22,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893798926] [2022-12-13 13:16:22,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893798926] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:22,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:16:22,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:16:22,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283253999] [2022-12-13 13:16:22,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:22,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:16:22,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:22,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:16:22,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:16:22,069 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-12-13 13:16:22,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:22,096 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2022-12-13 13:16:22,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:16:22,097 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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 29 [2022-12-13 13:16:22,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:22,097 INFO L225 Difference]: With dead ends: 63 [2022-12-13 13:16:22,097 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 13:16:22,098 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:16:22,098 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 12 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:22,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 29 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:22,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 13:16:22,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-12-13 13:16:22,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 59 states have (on average 1.11864406779661) internal successors, (66), 61 states have internal predecessors, (66), 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) [2022-12-13 13:16:22,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 66 transitions. [2022-12-13 13:16:22,104 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 66 transitions. Word has length 29 [2022-12-13 13:16:22,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:22,104 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 66 transitions. [2022-12-13 13:16:22,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 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) [2022-12-13 13:16:22,105 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 66 transitions. [2022-12-13 13:16:22,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 13:16:22,105 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:22,105 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:22,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:16:22,106 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:22,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:22,106 INFO L85 PathProgramCache]: Analyzing trace with hash -1484934205, now seen corresponding path program 1 times [2022-12-13 13:16:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37294087] [2022-12-13 13:16:22,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:22,153 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 13:16:22,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:22,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37294087] [2022-12-13 13:16:22,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37294087] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:22,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747478575] [2022-12-13 13:16:22,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:22,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:22,155 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:22,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 13:16:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:22,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:16:22,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:22,223 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 13:16:22,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:22,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747478575] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:22,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:22,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2022-12-13 13:16:22,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550740508] [2022-12-13 13:16:22,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:22,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 13:16:22,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:22,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:16:22,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-12-13 13:16:22,225 INFO L87 Difference]: Start difference. First operand 62 states and 66 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 13:16:22,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:22,264 INFO L93 Difference]: Finished difference Result 95 states and 101 transitions. [2022-12-13 13:16:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 13:16:22,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 32 [2022-12-13 13:16:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:22,265 INFO L225 Difference]: With dead ends: 95 [2022-12-13 13:16:22,265 INFO L226 Difference]: Without dead ends: 62 [2022-12-13 13:16:22,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:22,265 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 3 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:22,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 50 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:22,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-12-13 13:16:22,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2022-12-13 13:16:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 54 states have (on average 1.0925925925925926) internal successors, (59), 56 states have internal predecessors, (59), 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) [2022-12-13 13:16:22,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2022-12-13 13:16:22,270 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 32 [2022-12-13 13:16:22,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:22,271 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2022-12-13 13:16:22,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2022-12-13 13:16:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2022-12-13 13:16:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 13:16:22,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:22,272 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:22,277 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 13:16:22,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:22,474 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:22,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:22,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1867760593, now seen corresponding path program 1 times [2022-12-13 13:16:22,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:22,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431640060] [2022-12-13 13:16:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:16:22,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:22,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431640060] [2022-12-13 13:16:22,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431640060] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:22,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78115599] [2022-12-13 13:16:22,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:22,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:22,643 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:22,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 13:16:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:22,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:16:22,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:22,724 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:16:22,724 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:16:22,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78115599] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:16:22,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:16:22,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 13:16:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581596094] [2022-12-13 13:16:22,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:16:22,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 13:16:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:22,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:16:22,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 13:16:22,726 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-13 13:16:22,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:22,779 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2022-12-13 13:16:22,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:16:22,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 34 [2022-12-13 13:16:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:22,780 INFO L225 Difference]: With dead ends: 57 [2022-12-13 13:16:22,780 INFO L226 Difference]: Without dead ends: 56 [2022-12-13 13:16:22,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:22,782 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 17 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:22,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 42 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-13 13:16:22,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2022-12-13 13:16:22,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.0740740740740742) internal successors, (58), 55 states have internal predecessors, (58), 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) [2022-12-13 13:16:22,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2022-12-13 13:16:22,787 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 34 [2022-12-13 13:16:22,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:22,788 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2022-12-13 13:16:22,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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) [2022-12-13 13:16:22,788 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2022-12-13 13:16:22,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 13:16:22,789 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:22,789 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:22,794 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 13:16:22,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:22,990 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:22,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:22,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2066003444, now seen corresponding path program 1 times [2022-12-13 13:16:22,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:22,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042321753] [2022-12-13 13:16:22,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:22,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:16:23,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:23,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042321753] [2022-12-13 13:16:23,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042321753] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:23,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378598631] [2022-12-13 13:16:23,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:23,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:23,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:23,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 13:16:23,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:23,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 13:16:23,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:16:23,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-12-13 13:16:23,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378598631] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:23,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:23,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 13:16:23,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437222843] [2022-12-13 13:16:23,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:23,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 13:16:23,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:23,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 13:16:23,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-12-13 13:16:23,293 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-12-13 13:16:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:23,366 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2022-12-13 13:16:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 13:16:23,367 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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 35 [2022-12-13 13:16:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:23,367 INFO L225 Difference]: With dead ends: 75 [2022-12-13 13:16:23,367 INFO L226 Difference]: Without dead ends: 74 [2022-12-13 13:16:23,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-12-13 13:16:23,368 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 46 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:23,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 55 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:23,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-13 13:16:23,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-12-13 13:16:23,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.0555555555555556) internal successors, (76), 73 states have internal predecessors, (76), 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) [2022-12-13 13:16:23,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2022-12-13 13:16:23,372 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 35 [2022-12-13 13:16:23,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:23,373 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2022-12-13 13:16:23,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 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) [2022-12-13 13:16:23,373 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2022-12-13 13:16:23,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 13:16:23,374 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:23,374 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2022-12-13 13:16:23,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 13:16:23,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 13:16:23,575 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:23,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:23,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1410184437, now seen corresponding path program 2 times [2022-12-13 13:16:23,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:23,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17226612] [2022-12-13 13:16:23,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:23,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:23,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 13:16:23,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17226612] [2022-12-13 13:16:23,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17226612] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:23,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715976268] [2022-12-13 13:16:23,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:16:23,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:23,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:23,697 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:23,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 13:16:23,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:16:23,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:16:23,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:16:23,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:23,785 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 13:16:23,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 13:16:23,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715976268] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:23,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:23,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-12-13 13:16:23,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88263137] [2022-12-13 13:16:23,821 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:23,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:16:23,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:23,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:16:23,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:16:23,823 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2022-12-13 13:16:23,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:23,845 INFO L93 Difference]: Finished difference Result 74 states and 76 transitions. [2022-12-13 13:16:23,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:16:23,845 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) Word has length 36 [2022-12-13 13:16:23,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:23,846 INFO L225 Difference]: With dead ends: 74 [2022-12-13 13:16:23,846 INFO L226 Difference]: Without dead ends: 73 [2022-12-13 13:16:23,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:16:23,847 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 25 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:23,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 11 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:16:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-12-13 13:16:23,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 54. [2022-12-13 13:16:23,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.0377358490566038) internal successors, (55), 53 states have internal predecessors, (55), 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) [2022-12-13 13:16:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2022-12-13 13:16:23,851 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 36 [2022-12-13 13:16:23,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:23,851 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2022-12-13 13:16:23,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 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) [2022-12-13 13:16:23,851 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2022-12-13 13:16:23,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-12-13 13:16:23,852 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:16:23,852 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:23,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 13:16:24,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 13:16:24,053 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 13:16:24,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:16:24,053 INFO L85 PathProgramCache]: Analyzing trace with hash -931492819, now seen corresponding path program 2 times [2022-12-13 13:16:24,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:16:24,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645334143] [2022-12-13 13:16:24,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:16:24,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:16:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:16:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 13:16:24,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:16:24,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645334143] [2022-12-13 13:16:24,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645334143] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:16:24,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016571625] [2022-12-13 13:16:24,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 13:16:24,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:24,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:16:24,130 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:16:24,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 13:16:24,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 13:16:24,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 13:16:24,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 13:16:24,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:16:24,249 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-13 13:16:24,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 13:16:24,306 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-12-13 13:16:24,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016571625] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 13:16:24,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 13:16:24,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2022-12-13 13:16:24,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824463909] [2022-12-13 13:16:24,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 13:16:24,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 13:16:24,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:16:24,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 13:16:24,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-12-13 13:16:24,308 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 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) [2022-12-13 13:16:24,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:16:24,438 INFO L93 Difference]: Finished difference Result 106 states and 109 transitions. [2022-12-13 13:16:24,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 13:16:24,439 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 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 53 [2022-12-13 13:16:24,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:16:24,439 INFO L225 Difference]: With dead ends: 106 [2022-12-13 13:16:24,439 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 13:16:24,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2022-12-13 13:16:24,441 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 13:16:24,441 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 28 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 13:16:24,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 13:16:24,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 13:16:24,441 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) [2022-12-13 13:16:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 13:16:24,442 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2022-12-13 13:16:24,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:16:24,442 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 13:16:24,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.888888888888889) internal successors, (62), 10 states have internal predecessors, (62), 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) [2022-12-13 13:16:24,442 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 13:16:24,442 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 13:16:24,445 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 13:16:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 13:16:24,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 13:16:24,450 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 13:16:24,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:16:24,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 37) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point L19-1(lines 19 37) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 16 39) the Hoare annotation is: true [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-13 13:16:24,827 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 31) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L24-3(line 24) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L24-4(line 24) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L895 garLoopResultBuilder]: At program point L24-5(lines 24 31) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= ~SIZE~0 2147483647)) [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L24-6(lines 24 31) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 33 36) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L33-3(line 33) no Hoare annotation was computed. [2022-12-13 13:16:24,828 INFO L899 garLoopResultBuilder]: For program point L33-4(line 33) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L895 garLoopResultBuilder]: At program point L33-5(lines 33 36) the Hoare annotation is: (let ((.cse0 (<= ~SIZE~0 2147483647))) (or (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) .cse0))) [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point L26-1(line 26) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point L26-2(lines 26 29) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point L26-4(lines 26 29) no Hoare annotation was computed. [2022-12-13 13:16:24,829 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-12-13 13:16:24,831 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:16:24,833 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:16:24,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:16:24 BoogieIcfgContainer [2022-12-13 13:16:24,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:16:24,843 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:16:24,843 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:16:24,843 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:16:24,844 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:16:19" (3/4) ... [2022-12-13 13:16:24,846 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 13:16:24,852 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-12-13 13:16:24,852 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 13:16:24,852 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 13:16:24,853 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 13:16:24,874 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:16:24,874 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:16:24,874 INFO L158 Benchmark]: Toolchain (without parser) took 5642.55ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 114.1MB in the end (delta: 5.1MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,874 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 153.1MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:16:24,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 173.16ms. Allocated memory is still 153.1MB. Free memory was 118.7MB in the beginning and 108.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.50ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:16:24,875 INFO L158 Benchmark]: Boogie Preprocessor took 15.31ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,875 INFO L158 Benchmark]: RCFGBuilder took 227.94ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,875 INFO L158 Benchmark]: TraceAbstraction took 5167.41ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 94.1MB in the beginning and 117.3MB in the end (delta: -23.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,875 INFO L158 Benchmark]: Witness Printer took 30.61ms. Allocated memory is still 184.5MB. Free memory was 116.2MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:16:24,876 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 153.1MB. Free memory is still 127.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 173.16ms. Allocated memory is still 153.1MB. Free memory was 118.7MB in the beginning and 108.7MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.50ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 107.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.31ms. Allocated memory is still 153.1MB. Free memory was 107.1MB in the beginning and 105.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 227.94ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5167.41ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 94.1MB in the beginning and 117.3MB in the end (delta: -23.2MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. * Witness Printer took 30.61ms. Allocated memory is still 184.5MB. Free memory was 116.2MB in the beginning and 114.1MB 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: 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, 33 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.1s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 301 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 301 mSDsluCounter, 466 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 274 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 770 IncrementalHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 192 mSDtfsCounter, 770 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 480 GetRequests, 387 SyntacticMatches, 4 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=11, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 72 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 20 NumberOfFragments, 25 HoareAnnotationTreeSize, 3 FomulaSimplifications, 63 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 226 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 570 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 710 ConstructedInterpolants, 0 QuantifiedInterpolants, 1750 SizeOfPredicates, 14 NumberOfNonLiveVariables, 670 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 26 InterpolantComputations, 8 PerfectInterpolantSequences, 396/527 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 8 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 && SIZE <= 2147483647 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: (i == 0 && SIZE <= 2147483647) || (1 <= i && SIZE <= 2147483647) RESULT: Ultimate proved your program to be correct! [2022-12-13 13:16:24,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79655325-eed5-438d-af3a-04e8e1fef94e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE