./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-lit/gj2007.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gj2007.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro --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 e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 --- 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-8393723 [2022-11-18 20:48:07,359 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:48:07,361 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:48:07,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:48:07,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:48:07,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:48:07,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:48:07,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:48:07,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:48:07,422 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:48:07,423 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:48:07,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:48:07,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:48:07,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:48:07,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:48:07,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:48:07,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:48:07,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:48:07,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:48:07,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:48:07,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:48:07,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:48:07,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:48:07,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:48:07,458 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:48:07,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:48:07,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:48:07,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:48:07,462 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:48:07,463 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:48:07,464 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:48:07,465 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:48:07,467 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:48:07,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:48:07,471 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:48:07,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:48:07,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:48:07,473 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:48:07,473 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:48:07,474 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:48:07,475 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:48:07,476 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 20:48:07,517 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:48:07,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:48:07,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:48:07,519 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:48:07,520 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:48:07,520 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:48:07,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:48:07,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:48:07,521 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:48:07,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:48:07,522 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:48:07,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 20:48:07,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:48:07,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:48:07,524 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:48:07,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:48:07,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:48:07,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:48:07,524 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 20:48:07,525 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:48:07,525 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:48:07,525 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:48:07,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:48:07,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:48:07,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:48:07,526 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:48:07,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:07,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:48:07,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:48:07,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:48:07,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:48:07,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:48:07,529 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:48:07,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:48:07,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:48:07,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e210f4af0021f1e0c887bbfa24b18aad98424108efaad4cfc57802fd9fd5ce53 [2022-11-18 20:48:07,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:48:07,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:48:07,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:48:07,835 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:48:07,835 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:48:07,837 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/loop-lit/gj2007.i [2022-11-18 20:48:07,906 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/data/cf841124f/9cec258ba9344fb79a8a2e9fef09d1de/FLAGee3272b0a [2022-11-18 20:48:08,452 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:48:08,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/sv-benchmarks/c/loop-lit/gj2007.i [2022-11-18 20:48:08,459 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/data/cf841124f/9cec258ba9344fb79a8a2e9fef09d1de/FLAGee3272b0a [2022-11-18 20:48:08,931 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/data/cf841124f/9cec258ba9344fb79a8a2e9fef09d1de [2022-11-18 20:48:08,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:48:08,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:48:08,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:08,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:48:08,940 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:48:08,941 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:08" (1/1) ... [2022-11-18 20:48:08,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23690924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:08, skipping insertion in model container [2022-11-18 20:48:08,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:48:08" (1/1) ... [2022-11-18 20:48:08,949 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:48:08,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:48:09,176 WARN L234 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_9d08bf25-c73a-4a01-9292-e9db49d74d15/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-11-18 20:48:09,190 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:09,199 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:48:09,212 WARN L234 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_9d08bf25-c73a-4a01-9292-e9db49d74d15/sv-benchmarks/c/loop-lit/gj2007.i[895,908] [2022-11-18 20:48:09,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:48:09,232 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:48:09,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09 WrapperNode [2022-11-18 20:48:09,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:48:09,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:09,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:48:09,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:48:09,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,268 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 34 [2022-11-18 20:48:09,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:48:09,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:48:09,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:48:09,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:48:09,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:48:09,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:48:09,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:48:09,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:48:09,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (1/1) ... [2022-11-18 20:48:09,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:48:09,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:09,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:48:09,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:48:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:48:09,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:48:09,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:48:09,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:48:09,460 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:48:09,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:48:09,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:48:09,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:48:09,639 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 20:48:09,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:09 BoogieIcfgContainer [2022-11-18 20:48:09,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:48:09,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:48:09,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:48:09,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:48:09,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:48:08" (1/3) ... [2022-11-18 20:48:09,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffa59f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:09, skipping insertion in model container [2022-11-18 20:48:09,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:48:09" (2/3) ... [2022-11-18 20:48:09,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ffa59f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:48:09, skipping insertion in model container [2022-11-18 20:48:09,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:09" (3/3) ... [2022-11-18 20:48:09,652 INFO L112 eAbstractionObserver]: Analyzing ICFG gj2007.i [2022-11-18 20:48:09,671 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:48:09,671 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-18 20:48:09,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:48:09,761 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;@78574f07, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:48:09,761 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-18 20:48:09,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 20:48:09,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:09,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 20:48:09,788 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:09,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:09,795 INFO L85 PathProgramCache]: Analyzing trace with hash 28699945, now seen corresponding path program 1 times [2022-11-18 20:48:09,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:09,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545725695] [2022-11-18 20:48:09,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:09,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:09,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:10,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:10,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545725695] [2022-11-18 20:48:10,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545725695] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:10,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:10,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 20:48:10,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389495744] [2022-11-18 20:48:10,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:10,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:10,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:10,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:10,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:48:10,067 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.625) internal successors, (26), 22 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:10,154 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2022-11-18 20:48:10,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:10,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 20:48:10,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:10,164 INFO L225 Difference]: With dead ends: 48 [2022-11-18 20:48:10,165 INFO L226 Difference]: Without dead ends: 20 [2022-11-18 20:48:10,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:48:10,176 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:10,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 31 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-18 20:48:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-18 20:48:10,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.5) internal successors, (21), 19 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) [2022-11-18 20:48:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-18 20:48:10,219 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 5 [2022-11-18 20:48:10,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:10,220 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-18 20:48:10,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-18 20:48:10,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 20:48:10,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:10,221 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:10,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:48:10,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:10,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:10,223 INFO L85 PathProgramCache]: Analyzing trace with hash 582877668, now seen corresponding path program 1 times [2022-11-18 20:48:10,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:10,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378514284] [2022-11-18 20:48:10,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 20:48:10,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:10,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378514284] [2022-11-18 20:48:10,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378514284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:10,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:48:10,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:48:10,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343402105] [2022-11-18 20:48:10,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:10,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:10,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:10,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:10,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:48:10,268 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:10,311 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-18 20:48:10,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:10,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 20:48:10,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:10,312 INFO L225 Difference]: With dead ends: 20 [2022-11-18 20:48:10,313 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:48:10,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 20:48:10,315 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:10,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:10,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:48:10,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 20:48:10,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-18 20:48:10,321 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 9 [2022-11-18 20:48:10,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:10,321 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-18 20:48:10,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-18 20:48:10,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:48:10,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:10,323 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:10,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:48:10,323 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:10,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:10,324 INFO L85 PathProgramCache]: Analyzing trace with hash 889338578, now seen corresponding path program 1 times [2022-11-18 20:48:10,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:10,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087090723] [2022-11-18 20:48:10,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:10,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:10,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087090723] [2022-11-18 20:48:10,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087090723] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:10,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554507494] [2022-11-18 20:48:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:10,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:10,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:10,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:48:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:48:10,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:48:10,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:10,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554507494] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:10,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:10,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:48:10,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640652666] [2022-11-18 20:48:10,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:10,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:10,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:10,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:10,538 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:10,573 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2022-11-18 20:48:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 20:48:10,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:10,575 INFO L225 Difference]: With dead ends: 31 [2022-11-18 20:48:10,575 INFO L226 Difference]: Without dead ends: 19 [2022-11-18 20:48:10,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:10,577 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:10,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-18 20:48:10,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-18 20:48:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-18 20:48:10,582 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 10 [2022-11-18 20:48:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:10,583 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-18 20:48:10,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-18 20:48:10,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 20:48:10,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:10,584 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-18 20:48:10,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-18 20:48:10,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:10,790 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)] === [2022-11-18 20:48:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:10,790 INFO L85 PathProgramCache]: Analyzing trace with hash 889332620, now seen corresponding path program 1 times [2022-11-18 20:48:10,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:10,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97056464] [2022-11-18 20:48:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,866 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:10,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:10,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97056464] [2022-11-18 20:48:10,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97056464] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:10,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727374302] [2022-11-18 20:48:10,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:10,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:10,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:10,869 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:10,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:48:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:10,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:48:10,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:10,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:10,959 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:10,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727374302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:10,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:10,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-11-18 20:48:10,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021942732] [2022-11-18 20:48:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:10,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:48:10,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:48:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:10,963 INFO L87 Difference]: Start difference. First operand 19 states and 20 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) [2022-11-18 20:48:10,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:10,986 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-18 20:48:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:48:10,987 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 10 [2022-11-18 20:48:10,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:10,988 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:48:10,988 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:48:10,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:10,990 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:10,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:10,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:48:10,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2022-11-18 20:48:10,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:10,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-11-18 20:48:10,995 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2022-11-18 20:48:10,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:10,996 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-11-18 20:48:10,996 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) [2022-11-18 20:48:10,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-11-18 20:48:10,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 20:48:10,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:10,997 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:11,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:11,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:11,203 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1799692198, now seen corresponding path program 1 times [2022-11-18 20:48:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:11,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348187045] [2022-11-18 20:48:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:11,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:11,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:11,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348187045] [2022-11-18 20:48:11,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348187045] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:11,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885584751] [2022-11-18 20:48:11,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:11,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:11,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:11,296 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:11,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 20:48:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:11,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:48:11,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:11,376 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:48:11,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:11,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885584751] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:11,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:11,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:48:11,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528170632] [2022-11-18 20:48:11,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:11,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:11,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:11,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:11,379 INFO L87 Difference]: Start difference. First operand 16 states and 17 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) [2022-11-18 20:48:11,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:11,391 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-18 20:48:11,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:11,392 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 11 [2022-11-18 20:48:11,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:11,393 INFO L225 Difference]: With dead ends: 21 [2022-11-18 20:48:11,393 INFO L226 Difference]: Without dead ends: 20 [2022-11-18 20:48:11,393 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:11,394 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:11,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:11,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-18 20:48:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2022-11-18 20:48:11,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:11,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-18 20:48:11,400 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 11 [2022-11-18 20:48:11,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:11,400 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-18 20:48:11,401 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) [2022-11-18 20:48:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-18 20:48:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 20:48:11,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:11,402 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:11,411 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-18 20:48:11,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:11,607 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:11,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash -44116652, now seen corresponding path program 1 times [2022-11-18 20:48:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:11,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836347185] [2022-11-18 20:48:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:11,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:11,665 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 20:48:11,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:11,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836347185] [2022-11-18 20:48:11,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836347185] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:11,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218161633] [2022-11-18 20:48:11,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:11,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:11,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:11,668 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:11,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 20:48:11,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:11,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-18 20:48:11,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:11,754 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 20:48:11,754 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:11,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218161633] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:11,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:11,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-18 20:48:11,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712953305] [2022-11-18 20:48:11,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:11,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:48:11,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:11,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:48:11,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:11,757 INFO L87 Difference]: Start difference. First operand 19 states and 20 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) [2022-11-18 20:48:11,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:11,765 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-18 20:48:11,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:48:11,766 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 12 [2022-11-18 20:48:11,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:11,771 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:48:11,772 INFO L226 Difference]: Without dead ends: 18 [2022-11-18 20:48:11,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:48:11,773 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 1 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:11,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-18 20:48:11,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-18 20:48:11,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:11,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-18 20:48:11,778 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 12 [2022-11-18 20:48:11,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:11,778 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-18 20:48:11,778 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) [2022-11-18 20:48:11,779 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-18 20:48:11,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 20:48:11,782 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:11,783 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:11,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:11,988 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:11,989 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:11,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:11,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1219582119, now seen corresponding path program 1 times [2022-11-18 20:48:11,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:11,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283333999] [2022-11-18 20:48:11,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:11,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:12,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:12,075 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:12,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:12,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283333999] [2022-11-18 20:48:12,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283333999] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:12,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565993068] [2022-11-18 20:48:12,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:12,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:12,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:12,078 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:12,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 20:48:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:12,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-18 20:48:12,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:12,144 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:12,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:12,173 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:12,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565993068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:12,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:12,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:48:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709659089] [2022-11-18 20:48:12,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:12,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:48:12,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:12,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:48:12,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:12,177 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-18 20:48:12,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:12,221 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2022-11-18 20:48:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:48:12,222 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 20:48:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:12,225 INFO L225 Difference]: With dead ends: 40 [2022-11-18 20:48:12,226 INFO L226 Difference]: Without dead ends: 30 [2022-11-18 20:48:12,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:48:12,227 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 12 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:12,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 24 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:12,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-18 20:48:12,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-18 20:48:12,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.0689655172413792) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:12,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-11-18 20:48:12,241 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 17 [2022-11-18 20:48:12,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:12,242 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-11-18 20:48:12,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 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) [2022-11-18 20:48:12,242 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-11-18 20:48:12,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-18 20:48:12,243 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:12,243 INFO L195 NwaCegarLoop]: trace histogram [6, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2022-11-18 20:48:12,250 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:12,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-18 20:48:12,451 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)] === [2022-11-18 20:48:12,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:12,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1191894134, now seen corresponding path program 2 times [2022-11-18 20:48:12,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:12,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323464273] [2022-11-18 20:48:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:12,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:12,547 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-18 20:48:12,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:12,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323464273] [2022-11-18 20:48:12,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323464273] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:12,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553927336] [2022-11-18 20:48:12,549 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:48:12,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:12,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:12,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:12,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 20:48:12,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:48:12,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:12,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:48:12,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:12,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 32 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 20:48:12,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553927336] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:12,897 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:12,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2022-11-18 20:48:12,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364035907] [2022-11-18 20:48:12,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:12,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 20:48:12,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:12,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 20:48:12,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:48:12,900 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:13,097 INFO L93 Difference]: Finished difference Result 71 states and 79 transitions. [2022-11-18 20:48:13,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 20:48:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-18 20:48:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:13,098 INFO L225 Difference]: With dead ends: 71 [2022-11-18 20:48:13,099 INFO L226 Difference]: Without dead ends: 61 [2022-11-18 20:48:13,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2022-11-18 20:48:13,100 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 53 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:13,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 23 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:13,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-18 20:48:13,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2022-11-18 20:48:13,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 59 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:13,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2022-11-18 20:48:13,110 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 29 [2022-11-18 20:48:13,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:13,110 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2022-11-18 20:48:13,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:13,110 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2022-11-18 20:48:13,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-18 20:48:13,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:13,112 INFO L195 NwaCegarLoop]: trace histogram [13, 10, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1] [2022-11-18 20:48:13,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:13,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:13,318 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:13,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:13,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1232260449, now seen corresponding path program 3 times [2022-11-18 20:48:13,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:13,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904188534] [2022-11-18 20:48:13,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:13,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:13,430 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-11-18 20:48:13,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:13,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904188534] [2022-11-18 20:48:13,432 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904188534] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:13,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235716922] [2022-11-18 20:48:13,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:48:13,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:13,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:13,434 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:13,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-18 20:48:13,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 20:48:13,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:13,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-18 20:48:13,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:13,636 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-11-18 20:48:13,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-11-18 20:48:13,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235716922] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:13,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:13,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-11-18 20:48:13,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401279689] [2022-11-18 20:48:13,791 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:13,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:48:13,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:48:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:48:13,793 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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) [2022-11-18 20:48:13,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:13,843 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2022-11-18 20:48:13,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:48:13,843 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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) Word has length 59 [2022-11-18 20:48:13,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:13,845 INFO L225 Difference]: With dead ends: 85 [2022-11-18 20:48:13,845 INFO L226 Difference]: Without dead ends: 84 [2022-11-18 20:48:13,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:48:13,846 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 12 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:13,847 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 37 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:48:13,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2022-11-18 20:48:13,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2022-11-18 20:48:13,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 83 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:13,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 85 transitions. [2022-11-18 20:48:13,857 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 85 transitions. Word has length 59 [2022-11-18 20:48:13,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:13,858 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 85 transitions. [2022-11-18 20:48:13,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.142857142857143) internal successors, (43), 8 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) [2022-11-18 20:48:13,858 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 85 transitions. [2022-11-18 20:48:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:48:13,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:13,860 INFO L195 NwaCegarLoop]: trace histogram [17, 10, 10, 10, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-18 20:48:13,867 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-18 20:48:14,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:14,066 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:14,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:14,066 INFO L85 PathProgramCache]: Analyzing trace with hash 848038123, now seen corresponding path program 4 times [2022-11-18 20:48:14,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:14,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696297338] [2022-11-18 20:48:14,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:14,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:14,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:14,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696297338] [2022-11-18 20:48:14,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696297338] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:14,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058530057] [2022-11-18 20:48:14,387 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:48:14,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:14,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:14,388 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:14,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-18 20:48:14,465 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:48:14,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:14,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-18 20:48:14,473 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:14,567 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:14,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 132 proven. 200 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:14,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058530057] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:14,879 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:14,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-11-18 20:48:14,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873908660] [2022-11-18 20:48:14,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:14,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-18 20:48:14,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:14,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-18 20:48:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:48:14,886 INFO L87 Difference]: Start difference. First operand 84 states and 85 transitions. Second operand has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:15,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:15,086 INFO L93 Difference]: Finished difference Result 172 states and 185 transitions. [2022-11-18 20:48:15,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-18 20:48:15,088 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 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 83 [2022-11-18 20:48:15,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:15,094 INFO L225 Difference]: With dead ends: 172 [2022-11-18 20:48:15,095 INFO L226 Difference]: Without dead ends: 132 [2022-11-18 20:48:15,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-11-18 20:48:15,097 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:15,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 24 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:15,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-11-18 20:48:15,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2022-11-18 20:48:15,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:15,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 133 transitions. [2022-11-18 20:48:15,133 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 133 transitions. Word has length 83 [2022-11-18 20:48:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:15,135 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 133 transitions. [2022-11-18 20:48:15,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.96) internal successors, (99), 25 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:15,136 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 133 transitions. [2022-11-18 20:48:15,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-18 20:48:15,143 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:15,144 INFO L195 NwaCegarLoop]: trace histogram [29, 22, 22, 22, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-18 20:48:15,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:15,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:15,350 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:15,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:15,350 INFO L85 PathProgramCache]: Analyzing trace with hash -26644561, now seen corresponding path program 5 times [2022-11-18 20:48:15,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:15,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829509397] [2022-11-18 20:48:15,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:15,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:15,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:16,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:16,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:16,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829509397] [2022-11-18 20:48:16,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829509397] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:16,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151713186] [2022-11-18 20:48:16,117 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-18 20:48:16,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:16,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:16,121 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:16,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-18 20:48:16,210 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2022-11-18 20:48:16,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:16,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-18 20:48:16,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:16,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:17,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 276 proven. 968 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:17,354 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151713186] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:17,354 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:17,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-11-18 20:48:17,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734616959] [2022-11-18 20:48:17,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:17,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-11-18 20:48:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-11-18 20:48:17,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 20:48:17,357 INFO L87 Difference]: Start difference. First operand 132 states and 133 transitions. Second operand has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:17,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:17,668 INFO L93 Difference]: Finished difference Result 268 states and 293 transitions. [2022-11-18 20:48:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-11-18 20:48:17,669 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 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 131 [2022-11-18 20:48:17,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:17,671 INFO L225 Difference]: With dead ends: 268 [2022-11-18 20:48:17,671 INFO L226 Difference]: Without dead ends: 228 [2022-11-18 20:48:17,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-11-18 20:48:17,674 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 92 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:17,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 32 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:48:17,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2022-11-18 20:48:17,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2022-11-18 20:48:17,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 227 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:17,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 229 transitions. [2022-11-18 20:48:17,698 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 229 transitions. Word has length 131 [2022-11-18 20:48:17,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:17,699 INFO L495 AbstractCegarLoop]: Abstraction has 228 states and 229 transitions. [2022-11-18 20:48:17,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.979591836734694) internal successors, (195), 49 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 229 transitions. [2022-11-18 20:48:17,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2022-11-18 20:48:17,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:17,704 INFO L195 NwaCegarLoop]: trace histogram [53, 46, 46, 46, 7, 7, 7, 6, 6, 1, 1, 1] [2022-11-18 20:48:17,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:17,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:17,909 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:17,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1809184055, now seen corresponding path program 6 times [2022-11-18 20:48:17,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:17,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285159167] [2022-11-18 20:48:17,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:17,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:20,189 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 564 proven. 4232 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-18 20:48:20,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:20,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285159167] [2022-11-18 20:48:20,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285159167] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:20,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057701950] [2022-11-18 20:48:20,190 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-11-18 20:48:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:20,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:20,191 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:20,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-18 20:48:20,285 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2022-11-18 20:48:20,285 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:20,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-18 20:48:20,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-11-18 20:48:20,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:21,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4904 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2022-11-18 20:48:21,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057701950] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:21,413 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:21,413 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 8, 8] total 63 [2022-11-18 20:48:21,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502543937] [2022-11-18 20:48:21,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:21,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-11-18 20:48:21,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:21,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-11-18 20:48:21,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1295, Invalid=2611, Unknown=0, NotChecked=0, Total=3906 [2022-11-18 20:48:21,418 INFO L87 Difference]: Start difference. First operand 228 states and 229 transitions. Second operand has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:23,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:23,119 INFO L93 Difference]: Finished difference Result 322 states and 332 transitions. [2022-11-18 20:48:23,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-11-18 20:48:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 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 227 [2022-11-18 20:48:23,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:23,122 INFO L225 Difference]: With dead ends: 322 [2022-11-18 20:48:23,122 INFO L226 Difference]: Without dead ends: 282 [2022-11-18 20:48:23,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1725 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4256, Invalid=7734, Unknown=0, NotChecked=0, Total=11990 [2022-11-18 20:48:23,127 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 259 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:23,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 80 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 20:48:23,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-18 20:48:23,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 280. [2022-11-18 20:48:23,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 1.007168458781362) internal successors, (281), 279 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:23,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 281 transitions. [2022-11-18 20:48:23,146 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 281 transitions. Word has length 227 [2022-11-18 20:48:23,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:23,148 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 281 transitions. [2022-11-18 20:48:23,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 4.523809523809524) internal successors, (285), 63 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 281 transitions. [2022-11-18 20:48:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-11-18 20:48:23,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:23,156 INFO L195 NwaCegarLoop]: trace histogram [62, 47, 47, 47, 15, 15, 15, 14, 14, 1, 1, 1] [2022-11-18 20:48:23,163 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:23,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-18 20:48:23,363 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:23,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:23,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1880735926, now seen corresponding path program 7 times [2022-11-18 20:48:23,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:23,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577199803] [2022-11-18 20:48:23,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:23,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:25,756 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-11-18 20:48:25,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577199803] [2022-11-18 20:48:25,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577199803] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:25,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106978759] [2022-11-18 20:48:25,757 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-11-18 20:48:25,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:25,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:25,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:25,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-18 20:48:25,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:25,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-18 20:48:25,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:26,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-11-18 20:48:26,185 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:27,696 INFO L134 CoverageAnalysis]: Checked inductivity of 6350 backedges. 1344 proven. 4418 refuted. 0 times theorem prover too weak. 588 trivial. 0 not checked. [2022-11-18 20:48:27,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106978759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:27,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:27,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 53 [2022-11-18 20:48:27,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482006335] [2022-11-18 20:48:27,700 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:27,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:48:27,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:27,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:48:27,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:48:27,704 INFO L87 Difference]: Start difference. First operand 280 states and 281 transitions. Second operand has 53 states, 53 states have (on average 4.037735849056604) internal successors, (214), 53 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:27,999 INFO L93 Difference]: Finished difference Result 380 states and 384 transitions. [2022-11-18 20:48:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-11-18 20:48:28,000 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 4.037735849056604) internal successors, (214), 53 states have internal predecessors, (214), 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 279 [2022-11-18 20:48:28,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:28,002 INFO L225 Difference]: With dead ends: 380 [2022-11-18 20:48:28,002 INFO L226 Difference]: Without dead ends: 292 [2022-11-18 20:48:28,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 509 SyntacticMatches, 46 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1315 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2022-11-18 20:48:28,008 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 100 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:28,009 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 36 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:48:28,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-18 20:48:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2022-11-18 20:48:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.006872852233677) internal successors, (293), 291 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 293 transitions. [2022-11-18 20:48:28,021 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 293 transitions. Word has length 279 [2022-11-18 20:48:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:28,022 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 293 transitions. [2022-11-18 20:48:28,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.037735849056604) internal successors, (214), 53 states have internal predecessors, (214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 293 transitions. [2022-11-18 20:48:28,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-18 20:48:28,026 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:28,026 INFO L195 NwaCegarLoop]: trace histogram [65, 50, 50, 50, 15, 15, 15, 14, 14, 1, 1, 1] [2022-11-18 20:48:28,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:28,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:48:28,233 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:28,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:28,234 INFO L85 PathProgramCache]: Analyzing trace with hash 16839355, now seen corresponding path program 8 times [2022-11-18 20:48:28,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:28,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370124779] [2022-11-18 20:48:28,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:28,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:28,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:28,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370124779] [2022-11-18 20:48:28,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370124779] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:28,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110884691] [2022-11-18 20:48:28,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 20:48:28,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:28,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:28,891 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:28,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-18 20:48:29,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 20:48:29,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:29,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 20:48:29,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:29,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:30,285 INFO L134 CoverageAnalysis]: Checked inductivity of 7016 backedges. 0 proven. 2016 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:30,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110884691] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:30,286 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:30,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2022-11-18 20:48:30,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090242117] [2022-11-18 20:48:30,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:30,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-18 20:48:30,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:30,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-18 20:48:30,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:48:30,289 INFO L87 Difference]: Start difference. First operand 292 states and 293 transitions. Second operand has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:30,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:30,387 INFO L93 Difference]: Finished difference Result 389 states and 405 transitions. [2022-11-18 20:48:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-18 20:48:30,387 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 32 states have internal predecessors, (187), 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 291 [2022-11-18 20:48:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:30,389 INFO L225 Difference]: With dead ends: 389 [2022-11-18 20:48:30,390 INFO L226 Difference]: Without dead ends: 388 [2022-11-18 20:48:30,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 566 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-11-18 20:48:30,391 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 45 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:30,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 133 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:30,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-11-18 20:48:30,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2022-11-18 20:48:30,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 387 states have (on average 1.0051679586563307) internal successors, (389), 387 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 389 transitions. [2022-11-18 20:48:30,405 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 389 transitions. Word has length 291 [2022-11-18 20:48:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:30,406 INFO L495 AbstractCegarLoop]: Abstraction has 388 states and 389 transitions. [2022-11-18 20:48:30,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.032258064516129) internal successors, (187), 32 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:30,407 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 389 transitions. [2022-11-18 20:48:30,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2022-11-18 20:48:30,413 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:30,413 INFO L195 NwaCegarLoop]: trace histogram [81, 50, 50, 50, 31, 31, 31, 30, 30, 1, 1, 1] [2022-11-18 20:48:30,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:30,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-18 20:48:30,624 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:30,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:30,625 INFO L85 PathProgramCache]: Analyzing trace with hash -588045333, now seen corresponding path program 9 times [2022-11-18 20:48:30,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:30,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571060519] [2022-11-18 20:48:30,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:30,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:30,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:32,055 INFO L134 CoverageAnalysis]: Checked inductivity of 10760 backedges. 0 proven. 5760 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:32,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:32,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571060519] [2022-11-18 20:48:32,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571060519] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:32,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792296032] [2022-11-18 20:48:32,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 20:48:32,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:32,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:32,057 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:32,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-18 20:48:32,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2022-11-18 20:48:32,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:32,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-18 20:48:32,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:32,825 INFO L134 CoverageAnalysis]: Checked inductivity of 10760 backedges. 0 proven. 5760 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:32,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 20:48:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 10760 backedges. 0 proven. 5760 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:34,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792296032] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 20:48:34,830 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 20:48:34,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2022-11-18 20:48:34,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886599767] [2022-11-18 20:48:34,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 20:48:34,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-11-18 20:48:34,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-11-18 20:48:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 20:48:34,834 INFO L87 Difference]: Start difference. First operand 388 states and 389 transitions. Second operand has 64 states, 63 states have (on average 6.015873015873016) internal successors, (379), 64 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:35,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:35,109 INFO L93 Difference]: Finished difference Result 581 states and 613 transitions. [2022-11-18 20:48:35,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-11-18 20:48:35,110 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.015873015873016) internal successors, (379), 64 states have internal predecessors, (379), 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 387 [2022-11-18 20:48:35,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:35,113 INFO L225 Difference]: With dead ends: 581 [2022-11-18 20:48:35,113 INFO L226 Difference]: Without dead ends: 580 [2022-11-18 20:48:35,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2022-11-18 20:48:35,117 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 68 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:35,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 266 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 20:48:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-11-18 20:48:35,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-11-18 20:48:35,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 1.003454231433506) internal successors, (581), 579 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:35,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 581 transitions. [2022-11-18 20:48:35,135 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 581 transitions. Word has length 387 [2022-11-18 20:48:35,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:35,136 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 581 transitions. [2022-11-18 20:48:35,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.015873015873016) internal successors, (379), 64 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:35,136 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 581 transitions. [2022-11-18 20:48:35,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2022-11-18 20:48:35,149 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:48:35,150 INFO L195 NwaCegarLoop]: trace histogram [113, 63, 63, 63, 62, 62, 50, 50, 50, 1, 1, 1] [2022-11-18 20:48:35,158 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:35,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-18 20:48:35,356 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-18 20:48:35,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:48:35,356 INFO L85 PathProgramCache]: Analyzing trace with hash 566281803, now seen corresponding path program 10 times [2022-11-18 20:48:35,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:48:35,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005990008] [2022-11-18 20:48:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:48:35,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:48:35,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:48:40,084 INFO L134 CoverageAnalysis]: Checked inductivity of 22856 backedges. 0 proven. 17856 refuted. 0 times theorem prover too weak. 5000 trivial. 0 not checked. [2022-11-18 20:48:40,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:48:40,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005990008] [2022-11-18 20:48:40,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005990008] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:48:40,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576009932] [2022-11-18 20:48:40,085 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-18 20:48:40,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:48:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:48:40,086 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:48:40,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-18 20:48:40,299 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-18 20:48:40,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 20:48:40,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 52 conjunts are in the unsatisfiable core [2022-11-18 20:48:40,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:48:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 22856 backedges. 17412 proven. 0 refuted. 0 times theorem prover too weak. 5444 trivial. 0 not checked. [2022-11-18 20:48:43,298 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:48:43,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576009932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:48:43,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:48:43,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [64] total 116 [2022-11-18 20:48:43,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342814073] [2022-11-18 20:48:43,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:48:43,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-11-18 20:48:43,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:48:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-11-18 20:48:43,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3457, Invalid=9883, Unknown=0, NotChecked=0, Total=13340 [2022-11-18 20:48:43,306 INFO L87 Difference]: Start difference. First operand 580 states and 581 transitions. Second operand has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:43,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:48:43,827 INFO L93 Difference]: Finished difference Result 580 states and 581 transitions. [2022-11-18 20:48:43,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-11-18 20:48:43,828 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 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 579 [2022-11-18 20:48:43,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:48:43,829 INFO L225 Difference]: With dead ends: 580 [2022-11-18 20:48:43,829 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:48:43,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3162 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=3457, Invalid=9883, Unknown=0, NotChecked=0, Total=13340 [2022-11-18 20:48:43,838 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 3 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:48:43,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 366 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-18 20:48:43,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:48:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:48:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:48:43,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 579 [2022-11-18 20:48:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:48:43,840 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:48:43,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.90566037735849) internal successors, (313), 53 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:48:43,841 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:48:43,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:48:43,844 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-18 20:48:43,845 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-18 20:48:43,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-18 20:48:43,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-18 20:48:43,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-18 20:48:43,846 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-18 20:48:43,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-18 20:48:44,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-18 20:48:44,056 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:48:45,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-18 20:48:45,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 20:48:45,722 INFO L899 garLoopResultBuilder]: For program point L31(line 31) no Hoare annotation was computed. [2022-11-18 20:48:45,722 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-18 20:48:45,722 INFO L899 garLoopResultBuilder]: For program point L31-1(line 31) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L899 garLoopResultBuilder]: For program point L29-1(line 29) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 34) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L899 garLoopResultBuilder]: For program point L19(line 19) no Hoare annotation was computed. [2022-11-18 20:48:45,723 INFO L902 garLoopResultBuilder]: At program point L36(lines 24 37) the Hoare annotation is: true [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 29) no Hoare annotation was computed. [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 31) no Hoare annotation was computed. [2022-11-18 20:48:45,724 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 20:48:45,725 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 32) no Hoare annotation was computed. [2022-11-18 20:48:45,725 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 20:48:45,725 INFO L899 garLoopResultBuilder]: For program point L28(lines 28 33) no Hoare annotation was computed. [2022-11-18 20:48:45,729 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 27 34) the Hoare annotation is: (let ((.cse1 (<= |ULTIMATE.start_main_~y~0#1| 50)) (.cse0 (<= 50 |ULTIMATE.start_main_~y~0#1|))) (or (and (<= |ULTIMATE.start_main_~y~0#1| 65) (<= 65 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 59) .cse0 (<= 59 |ULTIMATE.start_main_~x~0#1|)) (and (<= 80 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 80) .cse0) (and (<= 60 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 60) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483630) (<= 94 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 53) .cse0 (<= 53 |ULTIMATE.start_main_~x~0#1|)) (and (<= 72 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 72)) (and (< |ULTIMATE.start_main_~y~0#1| 2147483629) (<= 93 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483625) (<= 89 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 78 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 78) .cse0) (and (<= 64 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 64) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483619) (<= 83 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (= |ULTIMATE.start_main_~x~0#1| 0) .cse1 .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 79) .cse0 (<= 79 |ULTIMATE.start_main_~x~0#1|)) (and (<= 95 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483631) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 76) (<= 76 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483633) (<= 97 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 81 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483617) .cse0) (and (<= 92 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483628) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 73) .cse0 (<= 73 |ULTIMATE.start_main_~x~0#1|)) (and (<= 70 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 70) .cse0) (and (<= 98 |ULTIMATE.start_main_~x~0#1|) .cse0 (< |ULTIMATE.start_main_~y~0#1| 2147483634)) (and (<= 63 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 63) .cse0) (and (<= 96 |ULTIMATE.start_main_~x~0#1|) .cse0 (< |ULTIMATE.start_main_~y~0#1| 2147483632)) (and (<= |ULTIMATE.start_main_~y~0#1| 75) (<= 75 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 56) (<= 56 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 90 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483626) .cse0) (and (<= 99 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483635) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 55) (<= 55 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 1 |ULTIMATE.start_main_~x~0#1|) .cse1 .cse0) (and (<= 62 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 62)) (and (< |ULTIMATE.start_main_~y~0#1| 2147483620) (<= 84 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 85 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483621) .cse0) (and (<= 82 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483618) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 58) (<= 58 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 66) (<= 66 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483622) (<= 86 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 77) .cse0 (<= 77 |ULTIMATE.start_main_~x~0#1|)) (and (<= 61 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 61) .cse0) (and (<= 87 |ULTIMATE.start_main_~x~0#1|) .cse0 (< |ULTIMATE.start_main_~y~0#1| 2147483623)) (and (<= |ULTIMATE.start_main_~y~0#1| 74) (<= 74 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 71) (<= 71 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483624) (<= 88 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 52) (<= 52 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (<= 51 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 51)) (and (<= 69 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 69) .cse0) (and (<= 54 |ULTIMATE.start_main_~x~0#1|) .cse0 (<= |ULTIMATE.start_main_~y~0#1| 54)) (and (<= 57 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 57) .cse0) (and (<= 67 |ULTIMATE.start_main_~x~0#1|) (<= |ULTIMATE.start_main_~y~0#1| 67) .cse0) (and (<= 100 |ULTIMATE.start_main_~x~0#1|) (< |ULTIMATE.start_main_~y~0#1| 2147483636) .cse0) (and (<= |ULTIMATE.start_main_~y~0#1| 68) (<= 68 |ULTIMATE.start_main_~x~0#1|) .cse0) (and (< |ULTIMATE.start_main_~y~0#1| 2147483627) (<= 91 |ULTIMATE.start_main_~x~0#1|) .cse0))) [2022-11-18 20:48:45,730 INFO L899 garLoopResultBuilder]: For program point L18(lines 18 20) no Hoare annotation was computed. [2022-11-18 20:48:45,730 INFO L902 garLoopResultBuilder]: At program point L18-2(lines 17 22) the Hoare annotation is: true [2022-11-18 20:48:45,733 INFO L444 BasicCegarLoop]: Path program histogram: [10, 1, 1, 1, 1, 1, 1] [2022-11-18 20:48:45,737 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:48:45,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:48:45 BoogieIcfgContainer [2022-11-18 20:48:45,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:48:45,764 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:48:45,764 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:48:45,764 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:48:45,765 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:48:09" (3/4) ... [2022-11-18 20:48:45,768 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 20:48:45,777 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-18 20:48:45,778 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 20:48:45,778 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-18 20:48:45,778 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 20:48:45,811 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:48:45,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:48:45,812 INFO L158 Benchmark]: Toolchain (without parser) took 36877.24ms. Allocated memory was 113.2MB in the beginning and 432.0MB in the end (delta: 318.8MB). Free memory was 83.0MB in the beginning and 374.2MB in the end (delta: -291.3MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,812 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:45,812 INFO L158 Benchmark]: CACSL2BoogieTranslator took 297.23ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 87.7MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,813 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 86.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:48:45,813 INFO L158 Benchmark]: Boogie Preprocessor took 35.14ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 85.3MB in the end (delta: 981.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,813 INFO L158 Benchmark]: RCFGBuilder took 336.43ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 75.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,814 INFO L158 Benchmark]: TraceAbstraction took 36119.04ms. Allocated memory was 113.2MB in the beginning and 432.0MB in the end (delta: 318.8MB). Free memory was 75.1MB in the beginning and 377.4MB in the end (delta: -302.2MB). Peak memory consumption was 244.7MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,814 INFO L158 Benchmark]: Witness Printer took 47.29ms. Allocated memory is still 432.0MB. Free memory was 377.4MB in the beginning and 374.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:48:45,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 297.23ms. Allocated memory is still 113.2MB. Free memory was 82.9MB in the beginning and 87.7MB in the end (delta: -4.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 113.2MB. Free memory was 87.7MB in the beginning and 86.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.14ms. Allocated memory is still 113.2MB. Free memory was 86.3MB in the beginning and 85.3MB in the end (delta: 981.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 336.43ms. Allocated memory is still 113.2MB. Free memory was 85.3MB in the beginning and 75.9MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 36119.04ms. Allocated memory was 113.2MB in the beginning and 432.0MB in the end (delta: 318.8MB). Free memory was 75.1MB in the beginning and 377.4MB in the end (delta: -302.2MB). Peak memory consumption was 244.7MB. Max. memory is 16.1GB. * Witness Printer took 47.29ms. Allocated memory is still 432.0MB. Free memory was 377.4MB in the beginning and 374.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 29]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: 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, 23 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 36.0s, OverallIterations: 16, TraceHistogramMax: 113, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 715 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 715 mSDsluCounter, 1108 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 864 mSDsCounter, 152 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1908 IncrementalHoareTripleChecker+Invalid, 2060 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 152 mSolverCounterUnsat, 244 mSDtfsCounter, 1908 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3942 GetRequests, 3414 SyntacticMatches, 46 SemanticMatches, 482 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6398 ImplicationChecksByTransitivity, 13.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=580occurred in iteration=15, InterpolantAutomatonStates: 383, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 16 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 106 NumberOfFragments, 523 HoareAnnotationTreeSize, 3 FomulaSimplifications, 557 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 637 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 24.9s InterpolantComputationTime, 4264 NumberOfCodeBlocks, 4020 NumberOfCodeBlocksAsserted, 105 NumberOfCheckSat, 5728 ConstructedInterpolants, 0 QuantifiedInterpolants, 15354 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3261 ConjunctsInSsa, 215 ConjunctsInUnsatCore, 39 InterpolantComputations, 7 PerfectInterpolantSequences, 75351/139130 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((((((((((((((y <= 65 && 65 <= x) && 50 <= y) || ((y <= 59 && 50 <= y) && 59 <= x)) || ((80 <= x && y <= 80) && 50 <= y)) || ((60 <= x && y <= 60) && 50 <= y)) || ((y < 2147483630 && 94 <= x) && 50 <= y)) || ((y <= 53 && 50 <= y) && 53 <= x)) || ((72 <= x && 50 <= y) && y <= 72)) || ((y < 2147483629 && 93 <= x) && 50 <= y)) || ((y < 2147483625 && 89 <= x) && 50 <= y)) || ((78 <= x && y <= 78) && 50 <= y)) || ((64 <= x && y <= 64) && 50 <= y)) || ((y < 2147483619 && 83 <= x) && 50 <= y)) || ((x == 0 && y <= 50) && 50 <= y)) || ((y <= 79 && 50 <= y) && 79 <= x)) || ((95 <= x && y < 2147483631) && 50 <= y)) || ((y <= 76 && 76 <= x) && 50 <= y)) || ((y < 2147483633 && 97 <= x) && 50 <= y)) || ((81 <= x && y < 2147483617) && 50 <= y)) || ((92 <= x && y < 2147483628) && 50 <= y)) || ((y <= 73 && 50 <= y) && 73 <= x)) || ((70 <= x && y <= 70) && 50 <= y)) || ((98 <= x && 50 <= y) && y < 2147483634)) || ((63 <= x && y <= 63) && 50 <= y)) || ((96 <= x && 50 <= y) && y < 2147483632)) || ((y <= 75 && 75 <= x) && 50 <= y)) || ((y <= 56 && 56 <= x) && 50 <= y)) || ((90 <= x && y < 2147483626) && 50 <= y)) || ((99 <= x && y < 2147483635) && 50 <= y)) || ((y <= 55 && 55 <= x) && 50 <= y)) || ((1 <= x && y <= 50) && 50 <= y)) || ((62 <= x && 50 <= y) && y <= 62)) || ((y < 2147483620 && 84 <= x) && 50 <= y)) || ((85 <= x && y < 2147483621) && 50 <= y)) || ((82 <= x && y < 2147483618) && 50 <= y)) || ((y <= 58 && 58 <= x) && 50 <= y)) || ((y <= 66 && 66 <= x) && 50 <= y)) || ((y < 2147483622 && 86 <= x) && 50 <= y)) || ((y <= 77 && 50 <= y) && 77 <= x)) || ((61 <= x && y <= 61) && 50 <= y)) || ((87 <= x && 50 <= y) && y < 2147483623)) || ((y <= 74 && 74 <= x) && 50 <= y)) || ((y <= 71 && 71 <= x) && 50 <= y)) || ((y < 2147483624 && 88 <= x) && 50 <= y)) || ((y <= 52 && 52 <= x) && 50 <= y)) || ((51 <= x && 50 <= y) && y <= 51)) || ((69 <= x && y <= 69) && 50 <= y)) || ((54 <= x && 50 <= y) && y <= 54)) || ((57 <= x && y <= 57) && 50 <= y)) || ((67 <= x && y <= 67) && 50 <= y)) || ((100 <= x && y < 2147483636) && 50 <= y)) || ((y <= 68 && 68 <= x) && 50 <= y)) || ((y < 2147483627 && 91 <= x) && 50 <= y) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 20:48:45,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9d08bf25-c73a-4a01-9292-e9db49d74d15/bin/uautomizer-TMbwUNV5ro/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