./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test24-2.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_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/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_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test24-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/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_0e891e80-2776-448d-b385-3f637326a0d7/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 ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 --- 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 12:55:27,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:55:27,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:55:27,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:55:27,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:55:27,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:55:27,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:55:27,252 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:55:27,254 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:55:27,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:55:27,256 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:55:27,257 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:55:27,257 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:55:27,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:55:27,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:55:27,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:55:27,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:55:27,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:55:27,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:55:27,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:55:27,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:55:27,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:55:27,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:55:27,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:55:27,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:55:27,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:55:27,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:55:27,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:55:27,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:55:27,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:55:27,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:55:27,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:55:27,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:55:27,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:55:27,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:55:27,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:55:27,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:55:27,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:55:27,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:55:27,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:55:27,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:55:27,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 12:55:27,304 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:55:27,304 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:55:27,305 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:55:27,305 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:55:27,306 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:55:27,306 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:55:27,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:55:27,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:55:27,307 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:55:27,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:55:27,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:55:27,307 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:55:27,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:55:27,309 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:55:27,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:55:27,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:55:27,310 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:55:27,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:55:27,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:55:27,311 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:55:27,312 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_0e891e80-2776-448d-b385-3f637326a0d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba9918f9236391a08a9d6d8a63aa823d4042d99b397d7843518d83dccab2fbf8 [2022-12-13 12:55:27,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:55:27,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:55:27,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:55:27,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:55:27,517 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:55:27,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/ldv-regression/test24-2.c [2022-12-13 12:55:30,173 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:55:30,300 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:55:30,300 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/sv-benchmarks/c/ldv-regression/test24-2.c [2022-12-13 12:55:30,304 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/data/3d0ead48d/1ab1ca3c87324e369f564b9d495a56c0/FLAG262626386 [2022-12-13 12:55:30,314 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/data/3d0ead48d/1ab1ca3c87324e369f564b9d495a56c0 [2022-12-13 12:55:30,316 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:55:30,317 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:55:30,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:55:30,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:55:30,321 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:55:30,322 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,323 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48002246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30, skipping insertion in model container [2022-12-13 12:55:30,323 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:55:30,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:55:30,472 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_0e891e80-2776-448d-b385-3f637326a0d7/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2022-12-13 12:55:30,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:55:30,480 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:55:30,494 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_0e891e80-2776-448d-b385-3f637326a0d7/sv-benchmarks/c/ldv-regression/test24-2.c[807,820] [2022-12-13 12:55:30,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:55:30,505 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:55:30,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30 WrapperNode [2022-12-13 12:55:30,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:55:30,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:55:30,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:55:30,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:55:30,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,531 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 80 [2022-12-13 12:55:30,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:55:30,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:55:30,532 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:55:30,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:55:30,539 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,547 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:55:30,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:55:30,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:55:30,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:55:30,551 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (1/1) ... [2022-12-13 12:55:30,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:55:30,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:30,574 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:55:30,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:55:30,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:55:30,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:55:30,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:55:30,664 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:55:30,665 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:55:30,776 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:55:30,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:55:30,781 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:55:30,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:55:30 BoogieIcfgContainer [2022-12-13 12:55:30,783 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:55:30,785 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:55:30,785 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:55:30,788 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:55:30,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:55:30" (1/3) ... [2022-12-13 12:55:30,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc6e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:55:30, skipping insertion in model container [2022-12-13 12:55:30,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:55:30" (2/3) ... [2022-12-13 12:55:30,790 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fc6e58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:55:30, skipping insertion in model container [2022-12-13 12:55:30,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:55:30" (3/3) ... [2022-12-13 12:55:30,791 INFO L112 eAbstractionObserver]: Analyzing ICFG test24-2.c [2022-12-13 12:55:30,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:55:30,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:55:30,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:55:30,868 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;@328f5f15, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:55:30,869 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 12:55:30,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 27 states have internal predecessors, (33), 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 12:55:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 12:55:30,879 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:30,879 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:55:30,880 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:30,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:30,885 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-12-13 12:55:30,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:30,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589325380] [2022-12-13 12:55:30,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:30,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:30,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:31,118 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 12:55:31,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:31,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589325380] [2022-12-13 12:55:31,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589325380] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:31,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:55:31,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:55:31,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965833574] [2022-12-13 12:55:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:31,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:55:31,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:31,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:55:31,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:55:31,156 INFO L87 Difference]: Start difference. First operand has 28 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 27 states have internal predecessors, (33), 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 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:55:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:31,203 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2022-12-13 12:55:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:55:31,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:55:31,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:31,211 INFO L225 Difference]: With dead ends: 54 [2022-12-13 12:55:31,211 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 12:55:31,214 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 12:55:31,216 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:31,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 74 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:31,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 12:55:31,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 12:55:31,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 23 states have internal predecessors, (25), 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 12:55:31,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-12-13 12:55:31,239 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 5 [2022-12-13 12:55:31,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:31,239 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-12-13 12:55:31,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 12:55:31,240 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-12-13 12:55:31,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 12:55:31,240 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:31,240 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-12-13 12:55:31,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:55:31,241 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:31,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:31,241 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-12-13 12:55:31,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:31,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777938423] [2022-12-13 12:55:31,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:31,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:31,335 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 12:55:31,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777938423] [2022-12-13 12:55:31,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777938423] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:31,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636620090] [2022-12-13 12:55:31,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:31,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:31,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:31,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:31,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 12:55:31,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:31,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 12:55:31,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:31,456 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:55:31,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636620090] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:31,457 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:55:31,457 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-13 12:55:31,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863896301] [2022-12-13 12:55:31,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:31,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 12:55:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 12:55:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-13 12:55:31,460 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:31,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:31,498 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2022-12-13 12:55:31,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 12:55:31,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 12:55:31,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:31,499 INFO L225 Difference]: With dead ends: 24 [2022-12-13 12:55:31,499 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 12:55:31,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 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 12:55:31,501 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 35 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:31,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 28 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:31,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 12:55:31,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 12:55:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2022-12-13 12:55:31,506 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 9 [2022-12-13 12:55:31,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:31,506 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2022-12-13 12:55:31,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:31,507 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2022-12-13 12:55:31,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-12-13 12:55:31,507 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:31,507 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:31,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 12:55:31,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-12-13 12:55:31,710 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:31,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:31,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1607293492, now seen corresponding path program 1 times [2022-12-13 12:55:31,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:31,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624458324] [2022-12-13 12:55:31,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:31,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:31,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:31,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:31,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624458324] [2022-12-13 12:55:31,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624458324] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:31,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879853238] [2022-12-13 12:55:31,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:31,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:31,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:31,895 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:31,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 12:55:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:31,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 12:55:31,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:31,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:31,961 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:55:31,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:31,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879853238] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:55:31,992 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:55:31,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-12-13 12:55:31,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251503356] [2022-12-13 12:55:31,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:55:31,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 12:55:31,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:31,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 12:55:31,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:55:31,994 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 12:55:32,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:32,037 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2022-12-13 12:55:32,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 12:55:32,038 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 12:55:32,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:32,038 INFO L225 Difference]: With dead ends: 41 [2022-12-13 12:55:32,038 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 12:55:32,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 12:55:32,040 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 11 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:32,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 101 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:32,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 12:55:32,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-12-13 12:55:32,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 27 states have internal predecessors, (29), 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 12:55:32,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2022-12-13 12:55:32,044 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 10 [2022-12-13 12:55:32,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:32,045 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2022-12-13 12:55:32,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 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 12:55:32,045 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2022-12-13 12:55:32,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 12:55:32,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:32,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1] [2022-12-13 12:55:32,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-13 12:55:32,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:32,248 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:32,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:32,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1053425458, now seen corresponding path program 1 times [2022-12-13 12:55:32,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:32,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078395903] [2022-12-13 12:55:32,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:32,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:32,387 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 12:55:32,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:32,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078395903] [2022-12-13 12:55:32,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078395903] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:32,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:55:32,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:55:32,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627172897] [2022-12-13 12:55:32,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:32,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:55:32,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:32,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:55:32,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:55:32,393 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 12:55:32,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:32,417 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2022-12-13 12:55:32,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:55:32,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 14 [2022-12-13 12:55:32,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:32,418 INFO L225 Difference]: With dead ends: 28 [2022-12-13 12:55:32,418 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 12:55:32,418 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 12:55:32,419 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:32,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 42 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:32,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 12:55:32,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-12-13 12:55:32,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 26 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 12:55:32,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2022-12-13 12:55:32,423 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 14 [2022-12-13 12:55:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:32,423 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2022-12-13 12:55:32,424 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 12:55:32,424 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2022-12-13 12:55:32,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-13 12:55:32,424 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:32,424 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:32,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:55:32,425 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:32,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:32,425 INFO L85 PathProgramCache]: Analyzing trace with hash 1100935740, now seen corresponding path program 2 times [2022-12-13 12:55:32,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:32,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371137868] [2022-12-13 12:55:32,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:32,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:32,530 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:32,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:32,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371137868] [2022-12-13 12:55:32,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371137868] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:32,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935421936] [2022-12-13 12:55:32,530 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:55:32,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:32,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:32,532 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:32,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 12:55:32,574 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:55:32,574 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:55:32,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:55:32,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-12-13 12:55:32,604 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:55:32,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935421936] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:32,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:55:32,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2022-12-13 12:55:32,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809461824] [2022-12-13 12:55:32,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:32,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:55:32,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:32,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:55:32,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:55:32,607 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 3 states, 2 states have (on average 5.0) 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 12:55:32,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:32,614 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-12-13 12:55:32,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:55:32,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) 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 18 [2022-12-13 12:55:32,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:32,616 INFO L225 Difference]: With dead ends: 27 [2022-12-13 12:55:32,616 INFO L226 Difference]: Without dead ends: 26 [2022-12-13 12:55:32,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-12-13 12:55:32,617 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 2 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:32,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 28 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:32,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-12-13 12:55:32,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-12-13 12:55:32,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.173913043478261) internal successors, (27), 25 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 12:55:32,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-12-13 12:55:32,622 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 18 [2022-12-13 12:55:32,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:32,622 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-12-13 12:55:32,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) 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 12:55:32,623 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-12-13 12:55:32,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 12:55:32,623 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:32,623 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:32,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 12:55:32,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:32,825 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:32,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:32,826 INFO L85 PathProgramCache]: Analyzing trace with hash -230730371, now seen corresponding path program 1 times [2022-12-13 12:55:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:32,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244249784] [2022-12-13 12:55:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:32,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:32,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:33,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:33,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244249784] [2022-12-13 12:55:33,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244249784] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:33,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475698993] [2022-12-13 12:55:33,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:33,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:33,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:33,051 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:33,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 12:55:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:33,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 12:55:33,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:33,135 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:33,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:55:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:33,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475698993] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:55:33,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:55:33,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-12-13 12:55:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773897651] [2022-12-13 12:55:33,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:55:33,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-12-13 12:55:33,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-12-13 12:55:33,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:55:33,206 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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 12:55:33,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:33,298 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2022-12-13 12:55:33,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-12-13 12:55:33,299 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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) Word has length 19 [2022-12-13 12:55:33,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:33,299 INFO L225 Difference]: With dead ends: 53 [2022-12-13 12:55:33,299 INFO L226 Difference]: Without dead ends: 42 [2022-12-13 12:55:33,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-12-13 12:55:33,300 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 24 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:33,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 115 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:33,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-13 12:55:33,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-13 12:55:33,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1025641025641026) internal successors, (43), 41 states have internal predecessors, (43), 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 12:55:33,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2022-12-13 12:55:33,305 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 19 [2022-12-13 12:55:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:33,306 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2022-12-13 12:55:33,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 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 12:55:33,306 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2022-12-13 12:55:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 12:55:33,306 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:33,307 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:33,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 12:55:33,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-12-13 12:55:33,508 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:33,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1713684333, now seen corresponding path program 2 times [2022-12-13 12:55:33,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:33,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512600863] [2022-12-13 12:55:33,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:33,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:33,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512600863] [2022-12-13 12:55:33,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512600863] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:33,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618877345] [2022-12-13 12:55:33,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:55:33,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:33,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:33,804 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:33,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 12:55:33,848 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:55:33,848 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:55:33,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 12:55:33,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 12:55:33,874 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:55:33,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618877345] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:33,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:55:33,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [17] total 18 [2022-12-13 12:55:33,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279725066] [2022-12-13 12:55:33,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:33,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:55:33,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:55:33,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:55:33,876 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:33,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:33,881 INFO L93 Difference]: Finished difference Result 42 states and 43 transitions. [2022-12-13 12:55:33,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:55:33,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-12-13 12:55:33,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:33,882 INFO L225 Difference]: With dead ends: 42 [2022-12-13 12:55:33,882 INFO L226 Difference]: Without dead ends: 41 [2022-12-13 12:55:33,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-12-13 12:55:33,883 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:33,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:33,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-12-13 12:55:33,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-12-13 12:55:33,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.0769230769230769) internal successors, (42), 40 states have internal predecessors, (42), 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 12:55:33,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2022-12-13 12:55:33,886 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 35 [2022-12-13 12:55:33,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:33,886 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2022-12-13 12:55:33,887 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:33,887 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2022-12-13 12:55:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 12:55:33,887 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:33,887 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:33,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 12:55:34,087 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:34,088 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:34,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:34,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1906221421, now seen corresponding path program 1 times [2022-12-13 12:55:34,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:34,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916872537] [2022-12-13 12:55:34,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:34,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:34,243 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-12-13 12:55:34,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:34,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916872537] [2022-12-13 12:55:34,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916872537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:34,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:55:34,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 12:55:34,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878129652] [2022-12-13 12:55:34,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:34,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 12:55:34,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:34,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 12:55:34,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 12:55:34,246 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:34,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:34,269 INFO L93 Difference]: Finished difference Result 41 states and 42 transitions. [2022-12-13 12:55:34,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 12:55:34,270 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-12-13 12:55:34,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:34,271 INFO L225 Difference]: With dead ends: 41 [2022-12-13 12:55:34,271 INFO L226 Difference]: Without dead ends: 40 [2022-12-13 12:55:34,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 12:55:34,272 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:34,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 23 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:34,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-12-13 12:55:34,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-12-13 12:55:34,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.0512820512820513) internal successors, (41), 39 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 12:55:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2022-12-13 12:55:34,276 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 38 [2022-12-13 12:55:34,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:34,276 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2022-12-13 12:55:34,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:55:34,276 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2022-12-13 12:55:34,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-13 12:55:34,277 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:34,277 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:34,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 12:55:34,277 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:34,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:34,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1036678164, now seen corresponding path program 1 times [2022-12-13 12:55:34,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:34,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140917043] [2022-12-13 12:55:34,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:34,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:34,483 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:34,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:34,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140917043] [2022-12-13 12:55:34,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140917043] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:34,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435043019] [2022-12-13 12:55:34,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:34,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:34,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:34,485 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:34,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 12:55:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:34,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 12:55:34,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:34,606 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:34,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 12:55:34,799 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:34,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435043019] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 12:55:34,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 12:55:34,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-12-13 12:55:34,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983767124] [2022-12-13 12:55:34,800 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 12:55:34,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-12-13 12:55:34,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:34,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-12-13 12:55:34,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-12-13 12:55:34,801 INFO L87 Difference]: Start difference. First operand 40 states and 41 transitions. Second operand has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 12:55:35,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:35,029 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2022-12-13 12:55:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-12-13 12:55:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 39 [2022-12-13 12:55:35,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:35,030 INFO L225 Difference]: With dead ends: 81 [2022-12-13 12:55:35,030 INFO L226 Difference]: Without dead ends: 72 [2022-12-13 12:55:35,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-12-13 12:55:35,031 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 66 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:35,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 118 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 12:55:35,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-13 12:55:35,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-12-13 12:55:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.028169014084507) internal successors, (73), 71 states have internal predecessors, (73), 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 12:55:35,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2022-12-13 12:55:35,035 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 39 [2022-12-13 12:55:35,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:35,036 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2022-12-13 12:55:35,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.176470588235294) internal successors, (74), 34 states have internal predecessors, (74), 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 12:55:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2022-12-13 12:55:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-13 12:55:35,037 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:55:35,037 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:55:35,042 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 12:55:35,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:35,238 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 12:55:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:55:35,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1044203532, now seen corresponding path program 2 times [2022-12-13 12:55:35,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:55:35,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893092374] [2022-12-13 12:55:35,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:55:35,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:55:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:55:35,868 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:55:35,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:55:35,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893092374] [2022-12-13 12:55:35,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893092374] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 12:55:35,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743602621] [2022-12-13 12:55:35,869 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 12:55:35,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:35,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:55:35,870 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 12:55:35,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 12:55:35,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 12:55:35,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 12:55:35,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-13 12:55:35,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 12:55:35,972 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-13 12:55:35,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-13 12:55:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-12-13 12:55:36,024 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 12:55:36,024 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743602621] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:55:36,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 12:55:36,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [33] total 36 [2022-12-13 12:55:36,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077845420] [2022-12-13 12:55:36,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:55:36,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 12:55:36,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:55:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 12:55:36,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=966, Unknown=0, NotChecked=0, Total=1260 [2022-12-13 12:55:36,026 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 12:55:36,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 12:55:36,071 INFO L93 Difference]: Finished difference Result 72 states and 73 transitions. [2022-12-13 12:55:36,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 12:55:36,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 71 [2022-12-13 12:55:36,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 12:55:36,072 INFO L225 Difference]: With dead ends: 72 [2022-12-13 12:55:36,072 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 12:55:36,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=302, Invalid=1104, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 12:55:36,073 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 12:55:36,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 12:55:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 12:55:36,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 12:55:36,074 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 12:55:36,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 12:55:36,075 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2022-12-13 12:55:36,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 12:55:36,075 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 12:55:36,075 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 12:55:36,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 12:55:36,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 12:55:36,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 12:55:36,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 12:55:36,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 12:55:36,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 12:55:36,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 12:55:36,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 12:55:36,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-12-13 12:55:36,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 12:55:36,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 12:55:36,316 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 12:55:36,316 INFO L899 garLoopResultBuilder]: For program point L19-2(lines 19 22) no Hoare annotation was computed. [2022-12-13 12:55:36,316 INFO L899 garLoopResultBuilder]: For program point L19-3(line 19) no Hoare annotation was computed. [2022-12-13 12:55:36,316 INFO L899 garLoopResultBuilder]: For program point L19-4(line 19) no Hoare annotation was computed. [2022-12-13 12:55:36,317 INFO L895 garLoopResultBuilder]: At program point L19-5(lines 19 22) the Hoare annotation is: (or (<= 1 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~j~0#1| 0)) [2022-12-13 12:55:36,317 INFO L899 garLoopResultBuilder]: For program point L19-6(lines 19 22) no Hoare annotation was computed. [2022-12-13 12:55:36,318 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 15 41) the Hoare annotation is: true [2022-12-13 12:55:36,318 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 34) no Hoare annotation was computed. [2022-12-13 12:55:36,318 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 12:55:36,318 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-13 12:55:36,318 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point L24(lines 24 35) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point L24-2(lines 24 35) no Hoare annotation was computed. [2022-12-13 12:55:36,319 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2022-12-13 12:55:36,320 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 12:55:36,320 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 29 31) no Hoare annotation was computed. [2022-12-13 12:55:36,320 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2022-12-13 12:55:36,320 INFO L895 garLoopResultBuilder]: At program point L29-3(lines 29 31) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_main_~i~0#1| 2147483648)) (<= 1 |ULTIMATE.start_main_~j~0#1|) (<= (select (select |#memory_int| |ULTIMATE.start_main_~pa~0#1.base|) |ULTIMATE.start_main_~pa~0#1.offset|) 9)) [2022-12-13 12:55:36,321 INFO L899 garLoopResultBuilder]: For program point L29-4(lines 29 31) no Hoare annotation was computed. [2022-12-13 12:55:36,321 INFO L902 garLoopResultBuilder]: At program point check_returnLabel#1(lines 10 13) the Hoare annotation is: true [2022-12-13 12:55:36,321 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 12:55:36,321 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2022-12-13 12:55:36,321 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2022-12-13 12:55:36,321 INFO L899 garLoopResultBuilder]: For program point L30-1(line 30) no Hoare annotation was computed. [2022-12-13 12:55:36,322 INFO L902 garLoopResultBuilder]: At program point main_ERROR#1(lines 16 41) the Hoare annotation is: true [2022-12-13 12:55:36,329 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1] [2022-12-13 12:55:36,337 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:55:36,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:55:36 BoogieIcfgContainer [2022-12-13 12:55:36,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:55:36,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:55:36,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:55:36,388 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:55:36,390 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:55:30" (3/4) ... [2022-12-13 12:55:36,400 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 12:55:36,426 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 12:55:36,427 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 12:55:36,427 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 12:55:36,427 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 12:55:36,463 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:55:36,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:55:36,464 INFO L158 Benchmark]: Toolchain (without parser) took 6146.98ms. Allocated memory was 132.1MB in the beginning and 232.8MB in the end (delta: 100.7MB). Free memory was 88.5MB in the beginning and 99.1MB in the end (delta: -10.6MB). Peak memory consumption was 91.6MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,464 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:55:36,465 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.92ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 78.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,465 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.36ms. Allocated memory is still 132.1MB. Free memory was 78.0MB in the beginning and 76.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:55:36,465 INFO L158 Benchmark]: Boogie Preprocessor took 17.23ms. Allocated memory is still 132.1MB. Free memory was 76.4MB in the beginning and 75.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,465 INFO L158 Benchmark]: RCFGBuilder took 233.11ms. Allocated memory is still 132.1MB. Free memory was 75.1MB in the beginning and 63.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,466 INFO L158 Benchmark]: TraceAbstraction took 5600.83ms. Allocated memory was 132.1MB in the beginning and 232.8MB in the end (delta: 100.7MB). Free memory was 62.9MB in the beginning and 102.2MB in the end (delta: -39.3MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,466 INFO L158 Benchmark]: Witness Printer took 76.43ms. Allocated memory is still 232.8MB. Free memory was 102.2MB in the beginning and 99.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:55:36,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 132.1MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.92ms. Allocated memory is still 132.1MB. Free memory was 88.5MB in the beginning and 78.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.36ms. Allocated memory is still 132.1MB. Free memory was 78.0MB in the beginning and 76.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.23ms. Allocated memory is still 132.1MB. Free memory was 76.4MB in the beginning and 75.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 233.11ms. Allocated memory is still 132.1MB. Free memory was 75.1MB in the beginning and 63.8MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5600.83ms. Allocated memory was 132.1MB in the beginning and 232.8MB in the end (delta: 100.7MB). Free memory was 62.9MB in the beginning and 102.2MB in the end (delta: -39.3MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Witness Printer took 76.43ms. Allocated memory is still 232.8MB. Free memory was 102.2MB in the beginning and 99.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: 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, 28 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 10, TraceHistogramMax: 15, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 151 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 151 mSDsluCounter, 590 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 443 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 147 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 393 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 155 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 966 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=9, InterpolantAutomatonStates: 82, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 24 NumberOfFragments, 26 HoareAnnotationTreeSize, 5 FomulaSimplifications, 117 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 459 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 507 ConstructedInterpolants, 0 QuantifiedInterpolants, 1081 SizeOfPredicates, 32 NumberOfNonLiveVariables, 641 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 7 PerfectInterpolantSequences, 647/1512 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 6 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (0 <= i + 2147483648 && 1 <= j) && unknown-#memory_int-unknown[pa][pa] <= 9 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 <= j || j == 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 12:55:36,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0e891e80-2776-448d-b385-3f637326a0d7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE