./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 18:05:35,470 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:05:35,472 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:05:35,484 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:05:35,484 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:05:35,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:05:35,485 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:05:35,486 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:05:35,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:05:35,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:05:35,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:05:35,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:05:35,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:05:35,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:05:35,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:05:35,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:05:35,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:05:35,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:05:35,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:05:35,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:05:35,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:05:35,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:05:35,497 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:05:35,498 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:05:35,500 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:05:35,500 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:05:35,501 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:05:35,501 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:05:35,501 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:05:35,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:05:35,502 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:05:35,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:05:35,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:05:35,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:05:35,505 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:05:35,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:05:35,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:05:35,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:05:35,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:05:35,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:05:35,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:05:35,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 18:05:35,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:05:35,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:05:35,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:05:35,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:05:35,522 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:05:35,522 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:05:35,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:05:35,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:05:35,522 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:05:35,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:05:35,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:05:35,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:05:35,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:05:35,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:05:35,525 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fa401c700a21fa1f98a1481c8e8ba1555a45c0429555dc041a1c04ce1059991 [2022-12-13 18:05:35,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:05:35,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:05:35,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:05:35,717 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:05:35,717 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:05:35,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-12-13 18:05:38,309 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:05:38,424 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:05:38,424 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c [2022-12-13 18:05:38,428 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/data/950116cca/3a1d826a100741ceae9bf9504aadfc7a/FLAG625affbd9 [2022-12-13 18:05:38,438 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/data/950116cca/3a1d826a100741ceae9bf9504aadfc7a [2022-12-13 18:05:38,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:05:38,441 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:05:38,442 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:05:38,442 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:05:38,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:05:38,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398af71a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38, skipping insertion in model container [2022-12-13 18:05:38,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,451 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:05:38,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:05:38,560 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c[421,434] [2022-12-13 18:05:38,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:05:38,578 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:05:38,587 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/sv-benchmarks/c/array-multidimensional/init-non-constant-2-n-u.c[421,434] [2022-12-13 18:05:38,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:05:38,602 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:05:38,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38 WrapperNode [2022-12-13 18:05:38,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:05:38,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:05:38,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:05:38,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:05:38,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,628 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2022-12-13 18:05:38,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:05:38,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:05:38,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:05:38,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:05:38,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,646 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:05:38,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:05:38,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:05:38,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:05:38,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (1/1) ... [2022-12-13 18:05:38,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:05:38,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:38,678 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:05:38,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:05:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:05:38,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-12-13 18:05:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-12-13 18:05:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:05:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:05:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:05:38,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:05:38,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:05:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:05:38,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:05:38,764 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:05:38,766 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:05:38,910 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:05:38,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:05:38,917 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 18:05:38,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:05:38 BoogieIcfgContainer [2022-12-13 18:05:38,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:05:38,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:05:38,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:05:38,926 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:05:38,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:05:38" (1/3) ... [2022-12-13 18:05:38,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e74ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:05:38, skipping insertion in model container [2022-12-13 18:05:38,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:05:38" (2/3) ... [2022-12-13 18:05:38,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e74ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:05:38, skipping insertion in model container [2022-12-13 18:05:38,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:05:38" (3/3) ... [2022-12-13 18:05:38,930 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-2-n-u.c [2022-12-13 18:05:38,950 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:05:38,950 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-12-13 18:05:39,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:05:39,008 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;@495a7670, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:05:39,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 18:05:39,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:39,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 18:05:39,022 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:39,023 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:39,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:39,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:39,029 INFO L85 PathProgramCache]: Analyzing trace with hash 134155656, now seen corresponding path program 1 times [2022-12-13 18:05:39,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:39,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903537452] [2022-12-13 18:05:39,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:39,115 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:39,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1977179055] [2022-12-13 18:05:39,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:39,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:39,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:39,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:05:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:39,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 18:05:39,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:39,197 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:05:39,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:39,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903537452] [2022-12-13 18:05:39,198 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:39,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977179055] [2022-12-13 18:05:39,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1977179055] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:05:39,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:05:39,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:05:39,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915761131] [2022-12-13 18:05:39,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:05:39,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:05:39,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:39,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:05:39,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:05:39,227 INFO L87 Difference]: Start difference. First operand has 44 states, 28 states have (on average 1.7857142857142858) internal successors, (50), 41 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:39,243 INFO L93 Difference]: Finished difference Result 85 states and 106 transitions. [2022-12-13 18:05:39,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:05:39,245 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-12-13 18:05:39,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:39,252 INFO L225 Difference]: With dead ends: 85 [2022-12-13 18:05:39,252 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 18:05:39,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:05:39,258 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:39,259 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:39,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 18:05:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-13 18:05:39,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.625) internal successors, (39), 36 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:39,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 43 transitions. [2022-12-13 18:05:39,288 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 43 transitions. Word has length 15 [2022-12-13 18:05:39,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:39,289 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 43 transitions. [2022-12-13 18:05:39,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:39,289 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 43 transitions. [2022-12-13 18:05:39,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 18:05:39,290 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:39,290 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:39,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:05:39,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 18:05:39,491 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 134155284, now seen corresponding path program 1 times [2022-12-13 18:05:39,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:39,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607505834] [2022-12-13 18:05:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:39,504 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:39,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036723880] [2022-12-13 18:05:39,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:39,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:39,506 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:39,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:05:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:39,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 18:05:39,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:39,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:05:39,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:39,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607505834] [2022-12-13 18:05:39,612 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:39,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036723880] [2022-12-13 18:05:39,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036723880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:05:39,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:05:39,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:05:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849460228] [2022-12-13 18:05:39,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:05:39,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:05:39,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:39,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:05:39,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:05:39,615 INFO L87 Difference]: Start difference. First operand 39 states and 43 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:39,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:39,652 INFO L93 Difference]: Finished difference Result 39 states and 43 transitions. [2022-12-13 18:05:39,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:05:39,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-12-13 18:05:39,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:39,654 INFO L225 Difference]: With dead ends: 39 [2022-12-13 18:05:39,654 INFO L226 Difference]: Without dead ends: 37 [2022-12-13 18:05:39,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:05:39,655 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:39,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 29 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:39,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-12-13 18:05:39,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-12-13 18:05:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 34 states have internal predecessors, (37), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:39,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2022-12-13 18:05:39,661 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 15 [2022-12-13 18:05:39,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:39,661 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2022-12-13 18:05:39,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:39,661 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2022-12-13 18:05:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 18:05:39,662 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:39,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:39,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:05:39,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:39,864 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:39,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:39,866 INFO L85 PathProgramCache]: Analyzing trace with hash 134155335, now seen corresponding path program 1 times [2022-12-13 18:05:39,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:39,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034774638] [2022-12-13 18:05:39,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:39,895 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:39,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [787225245] [2022-12-13 18:05:39,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:39,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:39,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:39,900 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:39,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:05:40,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:40,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:05:40,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:40,102 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:40,102 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:05:40,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:40,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034774638] [2022-12-13 18:05:40,103 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:40,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787225245] [2022-12-13 18:05:40,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787225245] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:05:40,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:05:40,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:05:40,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450105847] [2022-12-13 18:05:40,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:05:40,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:05:40,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:40,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:05:40,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:05:40,105 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:40,143 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2022-12-13 18:05:40,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:05:40,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-12-13 18:05:40,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:40,144 INFO L225 Difference]: With dead ends: 37 [2022-12-13 18:05:40,144 INFO L226 Difference]: Without dead ends: 33 [2022-12-13 18:05:40,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:05:40,145 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 43 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:40,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 18 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:40,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-12-13 18:05:40,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-12-13 18:05:40,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.375) internal successors, (33), 30 states have internal predecessors, (33), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2022-12-13 18:05:40,149 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 15 [2022-12-13 18:05:40,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:40,149 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2022-12-13 18:05:40,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2022-12-13 18:05:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 18:05:40,150 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:40,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:40,154 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 18:05:40,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:40,352 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:40,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:40,354 INFO L85 PathProgramCache]: Analyzing trace with hash -136153425, now seen corresponding path program 1 times [2022-12-13 18:05:40,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:40,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042700145] [2022-12-13 18:05:40,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:40,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:40,379 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:40,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [564401272] [2022-12-13 18:05:40,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:40,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:40,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:40,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:40,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:05:40,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:40,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 18:05:40,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:40,507 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:40,508 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:05:40,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:40,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042700145] [2022-12-13 18:05:40,508 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:40,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564401272] [2022-12-13 18:05:40,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564401272] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:05:40,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:05:40,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:05:40,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746652552] [2022-12-13 18:05:40,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:05:40,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:05:40,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:40,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:05:40,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:05:40,510 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:40,545 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2022-12-13 18:05:40,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:05:40,545 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-12-13 18:05:40,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:40,546 INFO L225 Difference]: With dead ends: 58 [2022-12-13 18:05:40,546 INFO L226 Difference]: Without dead ends: 56 [2022-12-13 18:05:40,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:05:40,547 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 20 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:40,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 40 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:40,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2022-12-13 18:05:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 51. [2022-12-13 18:05:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.380952380952381) internal successors, (58), 47 states have internal predecessors, (58), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 62 transitions. [2022-12-13 18:05:40,552 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 62 transitions. Word has length 16 [2022-12-13 18:05:40,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:40,552 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 62 transitions. [2022-12-13 18:05:40,553 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,553 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 62 transitions. [2022-12-13 18:05:40,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-13 18:05:40,553 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:40,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:40,558 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 18:05:40,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:40,755 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:40,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:40,756 INFO L85 PathProgramCache]: Analyzing trace with hash -136151855, now seen corresponding path program 1 times [2022-12-13 18:05:40,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:40,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968847101] [2022-12-13 18:05:40,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:40,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:40,770 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:40,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1841372292] [2022-12-13 18:05:40,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:40,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:40,772 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:40,774 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:40,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:05:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:40,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:05:40,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:40,861 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:40,862 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:05:40,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:40,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968847101] [2022-12-13 18:05:40,862 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:40,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1841372292] [2022-12-13 18:05:40,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1841372292] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:05:40,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:05:40,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:05:40,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811943326] [2022-12-13 18:05:40,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:05:40,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:05:40,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:05:40,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:05:40,864 INFO L87 Difference]: Start difference. First operand 51 states and 62 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:40,933 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2022-12-13 18:05:40,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:05:40,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-12-13 18:05:40,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:40,934 INFO L225 Difference]: With dead ends: 76 [2022-12-13 18:05:40,934 INFO L226 Difference]: Without dead ends: 72 [2022-12-13 18:05:40,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:05:40,935 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 35 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:40,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 47 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-12-13 18:05:40,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2022-12-13 18:05:40,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 54 states have (on average 1.3333333333333333) internal successors, (72), 59 states have internal predecessors, (72), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 76 transitions. [2022-12-13 18:05:40,944 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 76 transitions. Word has length 16 [2022-12-13 18:05:40,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:40,944 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 76 transitions. [2022-12-13 18:05:40,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:40,945 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 76 transitions. [2022-12-13 18:05:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 18:05:40,945 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:40,945 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:40,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 18:05:41,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:41,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:41,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:41,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1083320584, now seen corresponding path program 1 times [2022-12-13 18:05:41,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:41,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40537713] [2022-12-13 18:05:41,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:41,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:41,170 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:41,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055033731] [2022-12-13 18:05:41,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:41,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:41,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:41,174 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:41,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:05:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:41,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:05:41,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:41,254 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:41,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:41,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40537713] [2022-12-13 18:05:41,293 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:41,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055033731] [2022-12-13 18:05:41,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055033731] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:41,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:41,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2022-12-13 18:05:41,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442801659] [2022-12-13 18:05:41,294 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:41,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:05:41,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:41,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:05:41,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:05:41,295 INFO L87 Difference]: Start difference. First operand 63 states and 76 transitions. Second operand has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:41,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:41,387 INFO L93 Difference]: Finished difference Result 139 states and 161 transitions. [2022-12-13 18:05:41,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:05:41,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 20 [2022-12-13 18:05:41,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:41,389 INFO L225 Difference]: With dead ends: 139 [2022-12-13 18:05:41,389 INFO L226 Difference]: Without dead ends: 137 [2022-12-13 18:05:41,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:05:41,390 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 116 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:41,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 81 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:41,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-13 18:05:41,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 117. [2022-12-13 18:05:41,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 108 states have (on average 1.3611111111111112) internal successors, (147), 113 states have internal predecessors, (147), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 151 transitions. [2022-12-13 18:05:41,403 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 151 transitions. Word has length 20 [2022-12-13 18:05:41,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:41,403 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 151 transitions. [2022-12-13 18:05:41,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.4) internal successors, (22), 6 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 151 transitions. [2022-12-13 18:05:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 18:05:41,404 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:41,404 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:41,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 18:05:41,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:41,607 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:41,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:41,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1083319014, now seen corresponding path program 1 times [2022-12-13 18:05:41,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:41,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755671700] [2022-12-13 18:05:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:41,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:41,640 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:41,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [695677373] [2022-12-13 18:05:41,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:41,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:41,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:41,645 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:41,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:05:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:41,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:05:41,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:41,808 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:41,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:41,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:41,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755671700] [2022-12-13 18:05:41,830 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:41,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695677373] [2022-12-13 18:05:41,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695677373] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:41,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:41,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2022-12-13 18:05:41,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552081838] [2022-12-13 18:05:41,831 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:41,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 18:05:41,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:41,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 18:05:41,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:05:41,832 INFO L87 Difference]: Start difference. First operand 117 states and 151 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:41,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:41,911 INFO L93 Difference]: Finished difference Result 332 states and 431 transitions. [2022-12-13 18:05:41,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 18:05:41,912 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2022-12-13 18:05:41,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:41,913 INFO L225 Difference]: With dead ends: 332 [2022-12-13 18:05:41,914 INFO L226 Difference]: Without dead ends: 237 [2022-12-13 18:05:41,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:05:41,915 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 53 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:41,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 94 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:41,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2022-12-13 18:05:41,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 204. [2022-12-13 18:05:41,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 195 states have (on average 1.3128205128205128) internal successors, (256), 200 states have internal predecessors, (256), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:41,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 260 transitions. [2022-12-13 18:05:41,936 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 260 transitions. Word has length 20 [2022-12-13 18:05:41,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:41,936 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 260 transitions. [2022-12-13 18:05:41,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 260 transitions. [2022-12-13 18:05:41,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 18:05:41,937 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:41,937 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:41,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 18:05:42,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:42,139 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:42,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:42,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1505935037, now seen corresponding path program 1 times [2022-12-13 18:05:42,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:42,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156187910] [2022-12-13 18:05:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:42,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:42,155 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:42,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [28422400] [2022-12-13 18:05:42,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:42,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:42,158 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:42,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 18:05:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:42,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:05:42,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:42,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:42,290 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:42,326 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:42,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:42,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156187910] [2022-12-13 18:05:42,326 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:42,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28422400] [2022-12-13 18:05:42,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28422400] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:42,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:42,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-13 18:05:42,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909996477] [2022-12-13 18:05:42,327 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:42,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:05:42,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:05:42,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:05:42,328 INFO L87 Difference]: Start difference. First operand 204 states and 260 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:42,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:42,504 INFO L93 Difference]: Finished difference Result 264 states and 330 transitions. [2022-12-13 18:05:42,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:05:42,504 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 21 [2022-12-13 18:05:42,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:42,505 INFO L225 Difference]: With dead ends: 264 [2022-12-13 18:05:42,505 INFO L226 Difference]: Without dead ends: 260 [2022-12-13 18:05:42,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:05:42,506 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 214 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:42,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [216 Valid, 45 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:42,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-12-13 18:05:42,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 222. [2022-12-13 18:05:42,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 213 states have (on average 1.2863849765258215) internal successors, (274), 218 states have internal predecessors, (274), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:42,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2022-12-13 18:05:42,525 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 21 [2022-12-13 18:05:42,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:42,526 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2022-12-13 18:05:42,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:42,526 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2022-12-13 18:05:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-13 18:05:42,527 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:42,527 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:42,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 18:05:42,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-12-13 18:05:42,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:42,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash 217627411, now seen corresponding path program 1 times [2022-12-13 18:05:42,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:42,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677760832] [2022-12-13 18:05:42,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:42,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:42,756 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:42,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2132819546] [2022-12-13 18:05:42,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:42,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:42,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:42,761 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:42,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-12-13 18:05:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:42,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:05:42,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:42,938 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:42,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:42,979 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 18:05:42,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:42,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677760832] [2022-12-13 18:05:42,979 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:42,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132819546] [2022-12-13 18:05:42,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132819546] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:42,979 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:42,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-13 18:05:42,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334089057] [2022-12-13 18:05:42,980 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:42,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:05:42,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:42,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:05:42,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:05:42,981 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:43,113 INFO L93 Difference]: Finished difference Result 676 states and 868 transitions. [2022-12-13 18:05:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:05:43,114 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-12-13 18:05:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:43,115 INFO L225 Difference]: With dead ends: 676 [2022-12-13 18:05:43,115 INFO L226 Difference]: Without dead ends: 674 [2022-12-13 18:05:43,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:05:43,116 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 200 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:43,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 89 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2022-12-13 18:05:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 504. [2022-12-13 18:05:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 495 states have (on average 1.292929292929293) internal successors, (640), 500 states have internal predecessors, (640), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:43,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 644 transitions. [2022-12-13 18:05:43,151 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 644 transitions. Word has length 28 [2022-12-13 18:05:43,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:43,151 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 644 transitions. [2022-12-13 18:05:43,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.285714285714286) internal successors, (37), 8 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:43,151 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 644 transitions. [2022-12-13 18:05:43,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 18:05:43,152 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:43,153 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:43,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-12-13 18:05:43,353 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:43,354 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:43,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:43,354 INFO L85 PathProgramCache]: Analyzing trace with hash 148188371, now seen corresponding path program 2 times [2022-12-13 18:05:43,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:43,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295266219] [2022-12-13 18:05:43,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:43,359 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:43,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [879736650] [2022-12-13 18:05:43,360 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:05:43,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:43,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:43,361 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:43,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-12-13 18:05:43,394 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-12-13 18:05:43,394 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:43,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 18:05:43,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:05:43,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:43,454 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-12-13 18:05:43,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295266219] [2022-12-13 18:05:43,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:43,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879736650] [2022-12-13 18:05:43,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879736650] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:43,455 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:43,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2022-12-13 18:05:43,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778805413] [2022-12-13 18:05:43,456 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:43,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 18:05:43,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:43,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 18:05:43,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 18:05:43,457 INFO L87 Difference]: Start difference. First operand 504 states and 644 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:43,503 INFO L93 Difference]: Finished difference Result 505 states and 645 transitions. [2022-12-13 18:05:43,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 18:05:43,503 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2022-12-13 18:05:43,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:43,506 INFO L225 Difference]: With dead ends: 505 [2022-12-13 18:05:43,507 INFO L226 Difference]: Without dead ends: 464 [2022-12-13 18:05:43,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 18:05:43,508 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 45 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:43,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 31 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:05:43,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2022-12-13 18:05:43,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 213. [2022-12-13 18:05:43,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 206 states have (on average 1.2281553398058251) internal successors, (253), 209 states have internal predecessors, (253), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:43,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 257 transitions. [2022-12-13 18:05:43,518 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 257 transitions. Word has length 32 [2022-12-13 18:05:43,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:43,518 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 257 transitions. [2022-12-13 18:05:43,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:43,518 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 257 transitions. [2022-12-13 18:05:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-12-13 18:05:43,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:43,519 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:43,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-12-13 18:05:43,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 18:05:43,720 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:43,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:43,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1874428111, now seen corresponding path program 1 times [2022-12-13 18:05:43,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:43,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512516375] [2022-12-13 18:05:43,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:43,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:43,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:43,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [154770602] [2022-12-13 18:05:43,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:43,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:43,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:43,730 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:43,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-12-13 18:05:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:43,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 18:05:43,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:43,807 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 18:05:43,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:43,851 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-13 18:05:43,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:43,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512516375] [2022-12-13 18:05:43,852 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:43,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154770602] [2022-12-13 18:05:43,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154770602] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:43,852 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:43,852 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2022-12-13 18:05:43,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968414096] [2022-12-13 18:05:43,852 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:43,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 18:05:43,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:43,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 18:05:43,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-12-13 18:05:43,854 INFO L87 Difference]: Start difference. First operand 213 states and 257 transitions. Second operand has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:44,092 INFO L93 Difference]: Finished difference Result 576 states and 719 transitions. [2022-12-13 18:05:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-13 18:05:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-12-13 18:05:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:44,094 INFO L225 Difference]: With dead ends: 576 [2022-12-13 18:05:44,094 INFO L226 Difference]: Without dead ends: 574 [2022-12-13 18:05:44,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=180, Unknown=0, NotChecked=0, Total=306 [2022-12-13 18:05:44,095 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 302 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:44,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 60 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:05:44,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-12-13 18:05:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 303. [2022-12-13 18:05:44,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 296 states have (on average 1.2364864864864864) internal successors, (366), 299 states have internal predecessors, (366), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 370 transitions. [2022-12-13 18:05:44,117 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 370 transitions. Word has length 34 [2022-12-13 18:05:44,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:44,117 INFO L495 AbstractCegarLoop]: Abstraction has 303 states and 370 transitions. [2022-12-13 18:05:44,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.555555555555555) internal successors, (50), 10 states have internal predecessors, (50), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:44,117 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 370 transitions. [2022-12-13 18:05:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-13 18:05:44,118 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:44,118 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:44,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-12-13 18:05:44,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-12-13 18:05:44,320 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash -260513268, now seen corresponding path program 2 times [2022-12-13 18:05:44,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:44,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698987150] [2022-12-13 18:05:44,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:44,344 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:44,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [66790073] [2022-12-13 18:05:44,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:05:44,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:44,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:44,347 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:44,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-12-13 18:05:44,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:05:44,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:44,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 18:05:44,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:44,494 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 18:05:44,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-12-13 18:05:44,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:44,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698987150] [2022-12-13 18:05:44,557 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:44,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [66790073] [2022-12-13 18:05:44,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [66790073] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:44,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:44,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-12-13 18:05:44,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134154033] [2022-12-13 18:05:44,557 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:44,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 18:05:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 18:05:44,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:05:44,558 INFO L87 Difference]: Start difference. First operand 303 states and 370 transitions. Second operand has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:44,984 INFO L93 Difference]: Finished difference Result 843 states and 1025 transitions. [2022-12-13 18:05:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-12-13 18:05:44,984 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2022-12-13 18:05:44,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:44,985 INFO L225 Difference]: With dead ends: 843 [2022-12-13 18:05:44,985 INFO L226 Difference]: Without dead ends: 574 [2022-12-13 18:05:44,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=362, Invalid=828, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 18:05:44,987 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 524 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:44,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 71 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:05:44,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2022-12-13 18:05:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 280. [2022-12-13 18:05:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 273 states have (on average 1.1794871794871795) internal successors, (322), 276 states have internal predecessors, (322), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:45,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 326 transitions. [2022-12-13 18:05:45,004 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 326 transitions. Word has length 35 [2022-12-13 18:05:45,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:45,004 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 326 transitions. [2022-12-13 18:05:45,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.230769230769231) internal successors, (42), 14 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:45,004 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 326 transitions. [2022-12-13 18:05:45,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 18:05:45,005 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:45,005 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:45,009 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-12-13 18:05:45,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:45,206 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:45,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:45,207 INFO L85 PathProgramCache]: Analyzing trace with hash -2032000308, now seen corresponding path program 3 times [2022-12-13 18:05:45,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:45,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750011487] [2022-12-13 18:05:45,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:45,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:45,243 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:45,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [522091855] [2022-12-13 18:05:45,244 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:05:45,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:45,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:45,247 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:45,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-12-13 18:05:45,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 18:05:45,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:45,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 18:05:45,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 18:05:45,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:45,479 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-12-13 18:05:45,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:45,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750011487] [2022-12-13 18:05:45,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:45,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522091855] [2022-12-13 18:05:45,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522091855] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:45,480 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:45,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-12-13 18:05:45,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783247912] [2022-12-13 18:05:45,480 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:45,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 18:05:45,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:45,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 18:05:45,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:05:45,481 INFO L87 Difference]: Start difference. First operand 280 states and 326 transitions. Second operand has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:45,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:45,630 INFO L93 Difference]: Finished difference Result 583 states and 673 transitions. [2022-12-13 18:05:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 18:05:45,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2022-12-13 18:05:45,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:45,632 INFO L225 Difference]: With dead ends: 583 [2022-12-13 18:05:45,632 INFO L226 Difference]: Without dead ends: 579 [2022-12-13 18:05:45,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-12-13 18:05:45,633 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 73 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:45,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 42 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:45,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-12-13 18:05:45,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 378. [2022-12-13 18:05:45,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 371 states have (on average 1.150943396226415) internal successors, (427), 374 states have internal predecessors, (427), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:45,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 431 transitions. [2022-12-13 18:05:45,674 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 431 transitions. Word has length 45 [2022-12-13 18:05:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:45,675 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 431 transitions. [2022-12-13 18:05:45,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.0) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 431 transitions. [2022-12-13 18:05:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-12-13 18:05:45,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:45,676 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:45,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-12-13 18:05:45,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:45,878 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:45,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1779282895, now seen corresponding path program 4 times [2022-12-13 18:05:45,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:45,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418234500] [2022-12-13 18:05:45,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:45,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:45,889 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:45,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486678294] [2022-12-13 18:05:45,889 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 18:05:45,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:45,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:45,891 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:45,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-12-13 18:05:46,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 18:05:46,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:46,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 18:05:46,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 18:05:46,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:46,184 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 152 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-12-13 18:05:46,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:46,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418234500] [2022-12-13 18:05:46,184 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:46,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486678294] [2022-12-13 18:05:46,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486678294] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:46,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:46,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-12-13 18:05:46,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245831920] [2022-12-13 18:05:46,185 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:46,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-12-13 18:05:46,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:46,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-12-13 18:05:46,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2022-12-13 18:05:46,186 INFO L87 Difference]: Start difference. First operand 378 states and 431 transitions. Second operand has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:46,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:46,778 INFO L93 Difference]: Finished difference Result 1569 states and 1811 transitions. [2022-12-13 18:05:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-12-13 18:05:46,778 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 64 [2022-12-13 18:05:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:46,781 INFO L225 Difference]: With dead ends: 1569 [2022-12-13 18:05:46,781 INFO L226 Difference]: Without dead ends: 1567 [2022-12-13 18:05:46,782 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=532, Invalid=874, Unknown=0, NotChecked=0, Total=1406 [2022-12-13 18:05:46,782 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 1091 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 253 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1091 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 253 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:46,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1091 Valid, 49 Invalid, 507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [253 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-13 18:05:46,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2022-12-13 18:05:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 736. [2022-12-13 18:05:46,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 729 states have (on average 1.168724279835391) internal successors, (852), 732 states have internal predecessors, (852), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 856 transitions. [2022-12-13 18:05:46,836 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 856 transitions. Word has length 64 [2022-12-13 18:05:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:46,837 INFO L495 AbstractCegarLoop]: Abstraction has 736 states and 856 transitions. [2022-12-13 18:05:46,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.384615384615385) internal successors, (70), 14 states have internal predecessors, (70), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-13 18:05:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 856 transitions. [2022-12-13 18:05:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-12-13 18:05:46,838 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:46,838 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:46,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-12-13 18:05:47,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:47,039 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:47,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:47,039 INFO L85 PathProgramCache]: Analyzing trace with hash -145220379, now seen corresponding path program 1 times [2022-12-13 18:05:47,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:47,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022691938] [2022-12-13 18:05:47,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:47,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:47,050 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:47,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526097847] [2022-12-13 18:05:47,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:47,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:47,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:47,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-12-13 18:05:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:05:47,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 18:05:47,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:47,171 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 190 proven. 57 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 18:05:47,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:47,236 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 165 proven. 82 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-12-13 18:05:47,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:47,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022691938] [2022-12-13 18:05:47,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:47,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526097847] [2022-12-13 18:05:47,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526097847] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:47,236 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:47,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-12-13 18:05:47,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436999841] [2022-12-13 18:05:47,237 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:47,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-13 18:05:47,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:47,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-13 18:05:47,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-12-13 18:05:47,238 INFO L87 Difference]: Start difference. First operand 736 states and 856 transitions. Second operand has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:47,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:47,450 INFO L93 Difference]: Finished difference Result 947 states and 1080 transitions. [2022-12-13 18:05:47,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-13 18:05:47,451 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 76 [2022-12-13 18:05:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:47,455 INFO L225 Difference]: With dead ends: 947 [2022-12-13 18:05:47,455 INFO L226 Difference]: Without dead ends: 731 [2022-12-13 18:05:47,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-12-13 18:05:47,456 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 118 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:47,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 129 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2022-12-13 18:05:47,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 697. [2022-12-13 18:05:47,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 697 states, 690 states have (on average 1.1405797101449275) internal successors, (787), 693 states have internal predecessors, (787), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:47,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 791 transitions. [2022-12-13 18:05:47,519 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 791 transitions. Word has length 76 [2022-12-13 18:05:47,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:47,519 INFO L495 AbstractCegarLoop]: Abstraction has 697 states and 791 transitions. [2022-12-13 18:05:47,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.666666666666667) internal successors, (56), 12 states have internal predecessors, (56), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:47,519 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 791 transitions. [2022-12-13 18:05:47,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-12-13 18:05:47,520 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:47,521 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:47,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2022-12-13 18:05:47,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-13 18:05:47,721 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:47,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:47,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1598375247, now seen corresponding path program 5 times [2022-12-13 18:05:47,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:47,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583626969] [2022-12-13 18:05:47,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:47,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:47,731 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:47,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1606420672] [2022-12-13 18:05:47,731 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-12-13 18:05:47,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:47,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:47,732 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:47,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-12-13 18:05:47,976 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2022-12-13 18:05:47,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:47,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 10 conjunts are in the unsatisfiable core [2022-12-13 18:05:47,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:48,078 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 234 proven. 122 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 18:05:48,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:48,140 INFO L134 CoverageAnalysis]: Checked inductivity of 402 backedges. 182 proven. 174 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-12-13 18:05:48,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:48,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583626969] [2022-12-13 18:05:48,141 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:48,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1606420672] [2022-12-13 18:05:48,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1606420672] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:48,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:48,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2022-12-13 18:05:48,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582921321] [2022-12-13 18:05:48,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:48,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 18:05:48,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:48,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 18:05:48,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2022-12-13 18:05:48,143 INFO L87 Difference]: Start difference. First operand 697 states and 791 transitions. Second operand has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:48,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:48,385 INFO L93 Difference]: Finished difference Result 1791 states and 2002 transitions. [2022-12-13 18:05:48,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:05:48,386 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 84 [2022-12-13 18:05:48,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:48,388 INFO L225 Difference]: With dead ends: 1791 [2022-12-13 18:05:48,388 INFO L226 Difference]: Without dead ends: 1139 [2022-12-13 18:05:48,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 148 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2022-12-13 18:05:48,390 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 124 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:48,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 200 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:48,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2022-12-13 18:05:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1015. [2022-12-13 18:05:48,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 1008 states have (on average 1.1071428571428572) internal successors, (1116), 1011 states have internal predecessors, (1116), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 18:05:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1120 transitions. [2022-12-13 18:05:48,491 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1120 transitions. Word has length 84 [2022-12-13 18:05:48,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:48,491 INFO L495 AbstractCegarLoop]: Abstraction has 1015 states and 1120 transitions. [2022-12-13 18:05:48,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.733333333333333) internal successors, (71), 15 states have internal predecessors, (71), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 18:05:48,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1120 transitions. [2022-12-13 18:05:48,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-12-13 18:05:48,492 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:05:48,492 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:05:48,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2022-12-13 18:05:48,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-13 18:05:48,693 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-12-13 18:05:48,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:05:48,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1282385501, now seen corresponding path program 6 times [2022-12-13 18:05:48,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:05:48,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022745136] [2022-12-13 18:05:48,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:05:48,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:05:48,702 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 18:05:48,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1842969060] [2022-12-13 18:05:48,703 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-12-13 18:05:48,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:05:48,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:05:48,704 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:05:48,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-12-13 18:05:48,755 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2022-12-13 18:05:48,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:05:48,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-13 18:05:48,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:05:48,971 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-12-13 18:05:48,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:05:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 0 proven. 290 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-12-13 18:05:49,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:05:49,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022745136] [2022-12-13 18:05:49,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 18:05:49,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842969060] [2022-12-13 18:05:49,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842969060] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:05:49,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 18:05:49,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-12-13 18:05:49,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529045201] [2022-12-13 18:05:49,143 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 18:05:49,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 18:05:49,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:05:49,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 18:05:49,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2022-12-13 18:05:49,144 INFO L87 Difference]: Start difference. First operand 1015 states and 1120 transitions. Second operand has 15 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 18:05:49,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:05:49,437 INFO L93 Difference]: Finished difference Result 1015 states and 1120 transitions. [2022-12-13 18:05:49,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-13 18:05:49,437 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 94 [2022-12-13 18:05:49,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:05:49,437 INFO L225 Difference]: With dead ends: 1015 [2022-12-13 18:05:49,438 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 18:05:49,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-12-13 18:05:49,439 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 128 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:05:49,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 48 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:05:49,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 18:05:49,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 18:05:49,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:05:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 18:05:49,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2022-12-13 18:05:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:05:49,440 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 18:05:49,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 10 states have (on average 4.4) internal successors, (44), 13 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 18:05:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 18:05:49,440 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 18:05:49,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2022-12-13 18:05:49,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2022-12-13 18:05:49,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2022-12-13 18:05:49,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2022-12-13 18:05:49,442 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2022-12-13 18:05:49,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2022-12-13 18:05:49,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2022-12-13 18:05:49,443 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2022-12-13 18:05:49,446 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2022-12-13 18:05:49,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2022-12-13 18:05:49,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2022-12-13 18:05:49,447 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2022-12-13 18:05:49,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-12-13 18:05:49,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-12-13 18:05:49,649 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 18:06:03,421 WARN L233 SmtUtils]: Spent 13.77s on a formula simplification. DAG size of input: 450 DAG size of output: 401 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 18:06:31,994 WARN L233 SmtUtils]: Spent 24.51s on a formula simplification. DAG size of input: 227 DAG size of output: 220 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 18:06:59,431 WARN L233 SmtUtils]: Spent 27.43s on a formula simplification. DAG size of input: 457 DAG size of output: 430 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-12-13 18:07:07,858 INFO L895 garLoopResultBuilder]: At program point L31(line 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~s~0#1| 2147483647) (<= |ULTIMATE.start_main_~q~0#1| 2147483647) (<= |ULTIMATE.start_main_~j~0#1| 0)) [2022-12-13 18:07:07,858 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-13 18:07:07,859 INFO L895 garLoopResultBuilder]: At program point L31-1(line 31) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~i~0#1| 0) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= 0 |ULTIMATE.start_main_~j~0#1|) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~s~0#1| 2147483647) (<= |ULTIMATE.start_main_~j~0#1| 0)) [2022-12-13 18:07:07,859 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-12-13 18:07:07,859 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 51) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~s~0#1| 3) (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) (<= |ULTIMATE.start_main_~j~0#1| 3) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 .cse1 (<= |ULTIMATE.start_main_~q~0#1| 2147483647) (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483650)) (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998)))) [2022-12-13 18:07:07,859 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 51) no Hoare annotation was computed. [2022-12-13 18:07:07,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-12-13 18:07:07,859 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 17 57) the Hoare annotation is: true [2022-12-13 18:07:07,859 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L895 garLoopResultBuilder]: At program point L36-2(lines 36 39) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~s~0#1| 2) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 2) (<= |ULTIMATE.start_main_~q~0#1| 2147483647)) (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998)))) [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point L36-3(lines 36 39) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point L49-1(line 49) no Hoare annotation was computed. [2022-12-13 18:07:07,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point L37-1(line 37) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 40) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2022-12-13 18:07:07,861 INFO L895 garLoopResultBuilder]: At program point L46-2(lines 46 53) the Hoare annotation is: (let ((.cse11 (< |ULTIMATE.start_main_~i~0#1| 2147483648)) (.cse1 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~s~0#1|))) (.cse4 (<= |ULTIMATE.start_main_~i~0#1| 0)) (.cse6 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse7 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse10 (<= |ULTIMATE.start_main_~q~0#1| 2147483647)) (.cse9 (<= |ULTIMATE.start_main_~j~0#1| 0))) (let ((.cse0 (or (and .cse6 .cse11 .cse7 .cse1 .cse10 (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483650)) (and .cse4 (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) .cse6 .cse7 .cse10 .cse9))) (.cse2 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse3 (<= |ULTIMATE.start_main_~s~0#1| 1499)) (.cse5 (<= |ULTIMATE.start_main_~q~0#1| 999)) (.cse8 (<= |ULTIMATE.start_main_~n~0#1| 1500))) (or (and .cse0 (<= |ULTIMATE.start_main_~j~0#1| 3) .cse1) (and .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9) (and .cse0 (<= |ULTIMATE.start_main_~s~0#1| 2) .cse9) (and (<= |ULTIMATE.start_main_~s~0#1| 0) .cse6 .cse7 .cse10 .cse9) (and .cse2 .cse3 (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) .cse5 .cse6 .cse11 .cse7 .cse8 .cse1)))) [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 50) no Hoare annotation was computed. [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point L46-3(lines 46 53) no Hoare annotation was computed. [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2022-12-13 18:07:07,862 INFO L895 garLoopResultBuilder]: At program point L9-2(lines 8 13) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|))) (or (and (<= |ULTIMATE.start_main_~m~0#1| 1000) (<= |ULTIMATE.start_main_~s~0#1| 1499) (<= |ULTIMATE.start_main_~q~0#1| 999) .cse0 .cse1 (<= |ULTIMATE.start_main_~n~0#1| 1500) (<= |ULTIMATE.start_main_~i~0#1| 998) (<= |ULTIMATE.start_main_~j~0#1| 1498)) (and (<= |ULTIMATE.start_main_~s~0#1| 3) (< (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483650) (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) (<= (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~j~0#1|) 2147483647) .cse0 .cse1 (<= |ULTIMATE.start_main_~j~0#1| 2) (< (+ |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~q~0#1|) 2147483649) (<= |ULTIMATE.start_main_~q~0#1| 2147483647)))) [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-12-13 18:07:07,862 INFO L899 garLoopResultBuilder]: For program point L38-1(line 38) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L895 garLoopResultBuilder]: At program point L34-1(lines 34 41) the Hoare annotation is: (let ((.cse6 (<= |ULTIMATE.start_main_~j~0#1| 0)) (.cse0 (<= |ULTIMATE.start_main_~m~0#1| 1000)) (.cse1 (<= |ULTIMATE.start_main_~s~0#1| 1499)) (.cse2 (<= |ULTIMATE.start_main_~q~0#1| 999)) (.cse5 (<= |ULTIMATE.start_main_~n~0#1| 1500)) (.cse3 (<= 0 |ULTIMATE.start_main_~j~0#1|)) (.cse8 (< |ULTIMATE.start_main_~i~0#1| 2147483648)) (.cse4 (<= 0 |ULTIMATE.start_main_~i~0#1|)) (.cse9 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~s~0#1|))) (.cse7 (<= |ULTIMATE.start_main_~q~0#1| 2147483647))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3 .cse4 .cse5 .cse6) (and (<= |ULTIMATE.start_main_~s~0#1| 0) .cse3 .cse4 .cse7 .cse6) (and .cse0 .cse1 (< (+ |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~s~0#1|) 2147483649) .cse2 .cse3 .cse8 .cse4 .cse5 .cse9) (and .cse3 .cse8 .cse4 (<= |ULTIMATE.start_main_~j~0#1| 2) .cse9 .cse7))) [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point L34-2(lines 34 41) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 38) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 49) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 5 7) the Hoare annotation is: true [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point L6-2(lines 5 7) no Hoare annotation was computed. [2022-12-13 18:07:07,863 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2022-12-13 18:07:07,866 INFO L445 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:07:07,868 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:07:07,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:07:07 BoogieIcfgContainer [2022-12-13 18:07:07,889 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:07:07,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:07:07,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:07:07,889 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:07:07,889 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:05:38" (3/4) ... [2022-12-13 18:07:07,891 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:07:07,896 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2022-12-13 18:07:07,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-12-13 18:07:07,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-12-13 18:07:07,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:07:07,899 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:07:07,922 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:07:07,922 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:07:07,923 INFO L158 Benchmark]: Toolchain (without parser) took 89481.98ms. Allocated memory was 132.1MB in the beginning and 587.2MB in the end (delta: 455.1MB). Free memory was 94.5MB in the beginning and 525.8MB in the end (delta: -431.3MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,923 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:07:07,923 INFO L158 Benchmark]: CACSL2BoogieTranslator took 161.45ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 83.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.89ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 81.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,923 INFO L158 Benchmark]: Boogie Preprocessor took 21.33ms. Allocated memory is still 132.1MB. Free memory was 81.9MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,923 INFO L158 Benchmark]: RCFGBuilder took 268.79ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 68.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,924 INFO L158 Benchmark]: TraceAbstraction took 88965.99ms. Allocated memory was 132.1MB in the beginning and 587.2MB in the end (delta: 455.1MB). Free memory was 68.1MB in the beginning and 529.0MB in the end (delta: -460.9MB). Peak memory consumption was 319.6MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,924 INFO L158 Benchmark]: Witness Printer took 33.35ms. Allocated memory is still 587.2MB. Free memory was 529.0MB in the beginning and 525.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:07:07,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 50.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 161.45ms. Allocated memory is still 132.1MB. Free memory was 94.1MB in the beginning and 83.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.89ms. Allocated memory is still 132.1MB. Free memory was 83.7MB in the beginning and 81.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.33ms. Allocated memory is still 132.1MB. Free memory was 81.9MB in the beginning and 80.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 268.79ms. Allocated memory is still 132.1MB. Free memory was 80.6MB in the beginning and 68.6MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 88965.99ms. Allocated memory was 132.1MB in the beginning and 587.2MB in the end (delta: 455.1MB). Free memory was 68.1MB in the beginning and 529.0MB in the end (delta: -460.9MB). Peak memory consumption was 319.6MB. Max. memory is 16.1GB. * Witness Printer took 33.35ms. Allocated memory is still 587.2MB. Free memory was 529.0MB in the beginning and 525.8MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 49]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: 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 2 procedures, 44 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 88.9s, OverallIterations: 17, TraceHistogramMax: 15, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 78.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3127 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3113 mSDsluCounter, 1121 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 729 mSDsCounter, 714 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2221 IncrementalHoareTripleChecker+Invalid, 2935 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 714 mSolverCounterUnsat, 392 mSDtfsCounter, 2221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1232 GetRequests, 1040 SyntacticMatches, 12 SemanticMatches, 180 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1015occurred in iteration=16, InterpolantAutomatonStates: 163, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 17 MinimizatonAttempts, 2281 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 426 NumberOfFragments, 495 HoareAnnotationTreeSize, 11 FomulaSimplifications, 111626 FormulaSimplificationTreeSizeReduction, 72.4s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1088866 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 630 NumberOfCodeBlocks, 525 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 1154 ConstructedInterpolants, 0 QuantifiedInterpolants, 3927 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1796 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 29 InterpolantComputations, 5 PerfectInterpolantSequences, 1768/3336 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 12 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: ((((((((s <= 3 && q + s < 2147483650) && i + s < 2147483649) && j <= 3) && i <= 2147483646) && 0 <= j) && 0 <= i) && q <= 2147483647) && j + q < 2147483650) || (((((((m <= 1000 && s <= 1499) && q <= 999) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (((((((((m <= 1000 && s <= 1499) && i <= 0) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 0) || ((((s <= 0 && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) || ((((((((m <= 1000 && s <= 1499) && i + s < 2147483649) && q <= 999) && 0 <= j) && i < 2147483648) && 0 <= i) && n <= 1500) && !(j < s))) || (((((0 <= j && i < 2147483648) && 0 <= i) && j <= 2) && !(j < s)) && q <= 2147483647) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (((((((((((0 <= j && i < 2147483648) && 0 <= i) && !(j < s)) && q <= 2147483647) && j + q < 2147483650) || (((((i <= 0 && q + s < 2147483650) && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) && j <= 3) && !(j < s)) || (((((((m <= 1000 && s <= 1499) && i <= 0) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && j <= 0)) || ((((((((0 <= j && i < 2147483648) && 0 <= i) && !(j < s)) && q <= 2147483647) && j + q < 2147483650) || (((((i <= 0 && q + s < 2147483650) && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) && s <= 2) && j <= 0)) || ((((s <= 0 && 0 <= j) && 0 <= i) && q <= 2147483647) && j <= 0)) || ((((((((m <= 1000 && s <= 1499) && i + s < 2147483649) && q <= 999) && 0 <= j) && i < 2147483648) && 0 <= i) && n <= 1500) && !(j < s)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: (((((((m <= 1000 && s <= 1499) && q <= 999) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) && j <= 1498) || (((((((((s <= 3 && q + s < 2147483650) && i + s < 2147483649) && i <= 2147483646) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && j <= 2) && j + q < 2147483649) && q <= 2147483647) - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (((((s <= 2 && i <= 2147483646) && 0 <= j) && 0 <= i) && j <= 2) && q <= 2147483647) || (((((((m <= 1000 && s <= 1499) && q <= 999) && i + j <= 2147483647) && 0 <= j) && 0 <= i) && n <= 1500) && i <= 998) RESULT: Ultimate proved your program to be correct! [2022-12-13 18:07:07,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_14e23a58-8f63-4eff-a49d-313d44baa2c4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE