./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF --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 b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:48:16,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:48:16,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:48:16,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:48:16,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:48:16,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:48:16,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:48:16,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:48:16,263 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:48:16,264 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:48:16,265 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:48:16,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:48:16,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:48:16,269 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:48:16,271 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:48:16,273 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:48:16,274 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:48:16,275 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:48:16,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:48:16,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:48:16,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:48:16,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:48:16,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:48:16,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:48:16,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:48:16,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:48:16,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:48:16,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:48:16,295 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:48:16,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:48:16,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:48:16,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:48:16,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:48:16,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:48:16,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:48:16,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:48:16,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:48:16,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:48:16,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:48:16,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:48:16,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:48:16,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-20 05:48:16,347 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:48:16,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:48:16,348 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:48:16,348 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:48:16,349 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 05:48:16,349 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 05:48:16,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:48:16,350 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:48:16,350 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:48:16,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:48:16,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:48:16,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:48:16,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:48:16,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:48:16,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:48:16,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 05:48:16,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 05:48:16,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 05:48:16,353 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 05:48:16,353 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:48:16,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:48:16,353 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:48:16,354 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 05:48:16,354 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:48:16,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:48:16,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 05:48:16,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:48:16,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:48:16,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 05:48:16,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 05:48:16,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:48:16,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 05:48:16,356 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 05:48:16,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:48:16,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8fb715e20e93734f29581bef128b7f826b4b5933b157899cd0cb0d668434a9d [2021-11-20 05:48:16,637 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:48:16,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:48:16,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:48:16,668 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:48:16,669 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:48:16,671 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-20 05:48:16,731 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/data/ec2c54819/e5b24359724a45c7844839046d672801/FLAGc01618db6 [2021-11-20 05:48:17,332 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:48:17,332 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i [2021-11-20 05:48:17,369 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/data/ec2c54819/e5b24359724a45c7844839046d672801/FLAGc01618db6 [2021-11-20 05:48:17,563 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/data/ec2c54819/e5b24359724a45c7844839046d672801 [2021-11-20 05:48:17,567 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:48:17,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:48:17,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:48:17,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:48:17,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:48:17,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:48:17" (1/1) ... [2021-11-20 05:48:17,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5caba4d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:17, skipping insertion in model container [2021-11-20 05:48:17,579 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:48:17" (1/1) ... [2021-11-20 05:48:17,587 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:48:17,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:48:18,201 WARN L230 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_30d60e6d-09cc-4e05-946c-05e88407fcde/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-20 05:48:18,338 WARN L230 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_30d60e6d-09cc-4e05-946c-05e88407fcde/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-20 05:48:18,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:48:18,362 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:48:18,393 WARN L230 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_30d60e6d-09cc-4e05-946c-05e88407fcde/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[33021,33034] [2021-11-20 05:48:18,456 WARN L230 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_30d60e6d-09cc-4e05-946c-05e88407fcde/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test8-2.i[45234,45247] [2021-11-20 05:48:18,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:48:18,515 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:48:18,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18 WrapperNode [2021-11-20 05:48:18,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:48:18,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:48:18,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:48:18,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:48:18,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,688 INFO L137 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1157 [2021-11-20 05:48:18,689 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:48:18,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:48:18,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:48:18,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:48:18,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,770 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:48:18,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:48:18,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:48:18,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:48:18,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (1/1) ... [2021-11-20 05:48:18,816 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 05:48:18,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:18,842 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 05:48:18,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 05:48:18,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 05:48:18,899 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 05:48:18,899 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 05:48:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 05:48:18,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 05:48:18,901 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 05:48:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-20 05:48:18,902 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-20 05:48:18,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 05:48:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:48:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 05:48:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 05:48:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 05:48:18,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 05:48:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 05:48:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:48:18,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:48:18,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:48:19,176 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:48:19,194 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:48:20,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:48:20,289 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:48:20,289 INFO L301 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-20 05:48:20,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:20 BoogieIcfgContainer [2021-11-20 05:48:20,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:48:20,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 05:48:20,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 05:48:20,307 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 05:48:20,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:48:17" (1/3) ... [2021-11-20 05:48:20,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c80440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:20, skipping insertion in model container [2021-11-20 05:48:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:48:18" (2/3) ... [2021-11-20 05:48:20,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c80440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:48:20, skipping insertion in model container [2021-11-20 05:48:20,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:48:20" (3/3) ... [2021-11-20 05:48:20,317 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test8-2.i [2021-11-20 05:48:20,324 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 05:48:20,324 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-20 05:48:20,383 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 05:48:20,391 INFO L339 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=FINITE_AUTOMATA, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 05:48:20,391 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-20 05:48:20,417 INFO L276 IsEmpty]: Start isEmpty. Operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:20,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 05:48:20,420 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:20,421 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:20,422 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:20,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:20,427 INFO L85 PathProgramCache]: Analyzing trace with hash 232940209, now seen corresponding path program 1 times [2021-11-20 05:48:20,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:20,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879150584] [2021-11-20 05:48:20,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:20,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:20,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:20,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:20,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879150584] [2021-11-20 05:48:20,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879150584] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:20,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:20,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:20,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130875436] [2021-11-20 05:48:20,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:20,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 05:48:20,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:20,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 05:48:20,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:48:20,645 INFO L87 Difference]: Start difference. First operand has 267 states, 235 states have (on average 1.702127659574468) internal successors, (400), 258 states have internal predecessors, (400), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:20,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:20,711 INFO L93 Difference]: Finished difference Result 532 states and 895 transitions. [2021-11-20 05:48:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 05:48:20,715 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 05:48:20,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:20,738 INFO L225 Difference]: With dead ends: 532 [2021-11-20 05:48:20,738 INFO L226 Difference]: Without dead ends: 234 [2021-11-20 05:48:20,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 05:48:20,755 INFO L933 BasicCegarLoop]: 363 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, 363 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 [2021-11-20 05:48:20,757 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:48:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-11-20 05:48:20,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-11-20 05:48:20,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 203 states have (on average 1.374384236453202) internal successors, (279), 225 states have internal predecessors, (279), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:20,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2021-11-20 05:48:20,844 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 7 [2021-11-20 05:48:20,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:20,844 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2021-11-20 05:48:20,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2021-11-20 05:48:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-20 05:48:20,846 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:20,846 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:20,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 05:48:20,847 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:20,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:20,851 INFO L85 PathProgramCache]: Analyzing trace with hash 232942131, now seen corresponding path program 1 times [2021-11-20 05:48:20,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:20,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445579685] [2021-11-20 05:48:20,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:20,908 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:20,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [178097130] [2021-11-20 05:48:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:20,909 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:20,920 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:20,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 05:48:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:21,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 05:48:21,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:21,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-20 05:48:21,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 05:48:21,254 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-20 05:48:21,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-20 05:48:21,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-11-20 05:48:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:21,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:21,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:21,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445579685] [2021-11-20 05:48:21,341 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:21,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [178097130] [2021-11-20 05:48:21,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [178097130] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:21,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:21,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:21,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616797754] [2021-11-20 05:48:21,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:21,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 05:48:21,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:21,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:48:21,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:21,357 INFO L87 Difference]: Start difference. First operand 234 states and 319 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:22,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:22,291 INFO L93 Difference]: Finished difference Result 353 states and 477 transitions. [2021-11-20 05:48:22,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:48:22,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-20 05:48:22,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:22,295 INFO L225 Difference]: With dead ends: 353 [2021-11-20 05:48:22,296 INFO L226 Difference]: Without dead ends: 351 [2021-11-20 05:48:22,296 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 05:48:22,297 INFO L933 BasicCegarLoop]: 282 mSDtfsCounter, 188 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:22,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 1040 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 05:48:22,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-20 05:48:22,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 240. [2021-11-20 05:48:22,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.368421052631579) internal successors, (286), 231 states have internal predecessors, (286), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 326 transitions. [2021-11-20 05:48:22,340 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 326 transitions. Word has length 7 [2021-11-20 05:48:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:22,341 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 326 transitions. [2021-11-20 05:48:22,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 326 transitions. [2021-11-20 05:48:22,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-20 05:48:22,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:22,344 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:22,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:22,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:22,573 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:22,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:22,573 INFO L85 PathProgramCache]: Analyzing trace with hash 924007304, now seen corresponding path program 1 times [2021-11-20 05:48:22,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:22,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554722990] [2021-11-20 05:48:22,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:22,574 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:22,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:22,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:22,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554722990] [2021-11-20 05:48:22,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554722990] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:22,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:22,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:22,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649820582] [2021-11-20 05:48:22,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:22,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:22,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:22,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:22,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:22,658 INFO L87 Difference]: Start difference. First operand 240 states and 326 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:23,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:23,027 INFO L93 Difference]: Finished difference Result 448 states and 615 transitions. [2021-11-20 05:48:23,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:48:23,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2021-11-20 05:48:23,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:23,031 INFO L225 Difference]: With dead ends: 448 [2021-11-20 05:48:23,031 INFO L226 Difference]: Without dead ends: 319 [2021-11-20 05:48:23,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:23,034 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 100 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 843 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:23,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 843 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 05:48:23,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-20 05:48:23,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 240. [2021-11-20 05:48:23,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 231 states have internal predecessors, (285), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:23,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 325 transitions. [2021-11-20 05:48:23,072 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 325 transitions. Word has length 51 [2021-11-20 05:48:23,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:23,073 INFO L470 AbstractCegarLoop]: Abstraction has 240 states and 325 transitions. [2021-11-20 05:48:23,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:23,075 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 325 transitions. [2021-11-20 05:48:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 05:48:23,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:23,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:23,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 05:48:23,078 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:23,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:23,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1685087362, now seen corresponding path program 1 times [2021-11-20 05:48:23,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:23,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859197931] [2021-11-20 05:48:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:23,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:23,115 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:23,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1571983168] [2021-11-20 05:48:23,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:23,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:23,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:23,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:23,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 05:48:23,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:23,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:48:23,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:23,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:23,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:23,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859197931] [2021-11-20 05:48:23,427 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:23,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571983168] [2021-11-20 05:48:23,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571983168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:23,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:23,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:48:23,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958682855] [2021-11-20 05:48:23,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:23,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:23,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:23,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:23,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:23,430 INFO L87 Difference]: Start difference. First operand 240 states and 325 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:23,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:23,512 INFO L93 Difference]: Finished difference Result 493 states and 673 transitions. [2021-11-20 05:48:23,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:23,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-20 05:48:23,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:23,516 INFO L225 Difference]: With dead ends: 493 [2021-11-20 05:48:23,516 INFO L226 Difference]: Without dead ends: 261 [2021-11-20 05:48:23,517 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:23,518 INFO L933 BasicCegarLoop]: 299 mSDtfsCounter, 10 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:23,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 583 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:48:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-11-20 05:48:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 260. [2021-11-20 05:48:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 229 states have (on average 1.331877729257642) internal successors, (305), 251 states have internal predecessors, (305), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 345 transitions. [2021-11-20 05:48:23,532 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 345 transitions. Word has length 59 [2021-11-20 05:48:23,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:23,532 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 345 transitions. [2021-11-20 05:48:23,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:23,533 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 345 transitions. [2021-11-20 05:48:23,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 05:48:23,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:23,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:23,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:23,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-20 05:48:23,751 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:23,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:23,751 INFO L85 PathProgramCache]: Analyzing trace with hash -622531706, now seen corresponding path program 1 times [2021-11-20 05:48:23,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:23,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018671889] [2021-11-20 05:48:23,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:23,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:23,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:23,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2099539652] [2021-11-20 05:48:23,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:23,798 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:23,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:23,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:23,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 05:48:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:23,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-20 05:48:24,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:24,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:24,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018671889] [2021-11-20 05:48:24,142 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:24,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2099539652] [2021-11-20 05:48:24,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2099539652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:24,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:24,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:24,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138737700] [2021-11-20 05:48:24,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:24,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:24,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:24,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:24,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:24,145 INFO L87 Difference]: Start difference. First operand 260 states and 345 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:24,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:24,253 INFO L93 Difference]: Finished difference Result 502 states and 672 transitions. [2021-11-20 05:48:24,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:48:24,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-20 05:48:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:24,257 INFO L225 Difference]: With dead ends: 502 [2021-11-20 05:48:24,257 INFO L226 Difference]: Without dead ends: 250 [2021-11-20 05:48:24,258 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:24,259 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 223 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:24,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [228 Valid, 679 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:48:24,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-20 05:48:24,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 246. [2021-11-20 05:48:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 215 states have (on average 1.3209302325581396) internal successors, (284), 237 states have internal predecessors, (284), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-20 05:48:24,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 324 transitions. [2021-11-20 05:48:24,280 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 324 transitions. Word has length 59 [2021-11-20 05:48:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:24,280 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 324 transitions. [2021-11-20 05:48:24,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 324 transitions. [2021-11-20 05:48:24,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 05:48:24,297 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:24,297 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:24,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:24,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:24,524 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:24,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:24,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1240049736, now seen corresponding path program 1 times [2021-11-20 05:48:24,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:24,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001834118] [2021-11-20 05:48:24,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:24,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:24,561 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:24,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2033873813] [2021-11-20 05:48:24,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:24,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:24,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:24,568 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:24,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 05:48:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:24,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:48:24,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:24,927 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:24,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:24,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001834118] [2021-11-20 05:48:24,928 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:24,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033873813] [2021-11-20 05:48:24,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033873813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:24,928 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:24,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:24,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410059466] [2021-11-20 05:48:24,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:24,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:24,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:24,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:24,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:24,930 INFO L87 Difference]: Start difference. First operand 246 states and 324 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:25,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:25,001 INFO L93 Difference]: Finished difference Result 377 states and 506 transitions. [2021-11-20 05:48:25,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:48:25,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-20 05:48:25,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:25,009 INFO L225 Difference]: With dead ends: 377 [2021-11-20 05:48:25,009 INFO L226 Difference]: Without dead ends: 376 [2021-11-20 05:48:25,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:25,011 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 95 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 919 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:25,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 919 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:48:25,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2021-11-20 05:48:25,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 343. [2021-11-20 05:48:25,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 307 states have (on average 1.283387622149837) internal successors, (394), 329 states have internal predecessors, (394), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-20 05:48:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 442 transitions. [2021-11-20 05:48:25,031 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 442 transitions. Word has length 59 [2021-11-20 05:48:25,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:25,032 INFO L470 AbstractCegarLoop]: Abstraction has 343 states and 442 transitions. [2021-11-20 05:48:25,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 442 transitions. [2021-11-20 05:48:25,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-20 05:48:25,033 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:25,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:25,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:25,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:25,248 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:25,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:25,248 INFO L85 PathProgramCache]: Analyzing trace with hash 213163890, now seen corresponding path program 1 times [2021-11-20 05:48:25,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:25,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712697586] [2021-11-20 05:48:25,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:25,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:25,266 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:25,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895234240] [2021-11-20 05:48:25,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:25,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:25,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:25,268 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:25,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 05:48:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:25,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:48:25,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:25,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:25,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:25,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:25,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712697586] [2021-11-20 05:48:25,620 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:25,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895234240] [2021-11-20 05:48:25,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895234240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:25,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:25,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 05:48:25,621 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859940221] [2021-11-20 05:48:25,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:25,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:25,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:25,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:25,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:25,622 INFO L87 Difference]: Start difference. First operand 343 states and 442 transitions. Second operand has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:25,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:25,707 INFO L93 Difference]: Finished difference Result 343 states and 442 transitions. [2021-11-20 05:48:25,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:48:25,708 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-11-20 05:48:25,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:25,711 INFO L225 Difference]: With dead ends: 343 [2021-11-20 05:48:25,711 INFO L226 Difference]: Without dead ends: 342 [2021-11-20 05:48:25,712 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:25,713 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 269 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:25,713 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [269 Valid, 539 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:48:25,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-20 05:48:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-20 05:48:25,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 307 states have (on average 1.280130293159609) internal successors, (393), 328 states have internal predecessors, (393), 24 states have call successors, (24), 5 states have call predecessors, (24), 4 states have return successors, (24), 9 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-20 05:48:25,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 441 transitions. [2021-11-20 05:48:25,731 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 441 transitions. Word has length 60 [2021-11-20 05:48:25,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:25,732 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 441 transitions. [2021-11-20 05:48:25,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 05:48:25,732 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 441 transitions. [2021-11-20 05:48:25,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-20 05:48:25,734 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:25,734 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:25,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:25,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-20 05:48:25,960 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:25,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 56443402, now seen corresponding path program 1 times [2021-11-20 05:48:25,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:25,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124604404] [2021-11-20 05:48:25,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:25,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:25,996 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [921289544] [2021-11-20 05:48:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:26,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:26,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:26,007 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:26,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 05:48:26,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:26,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 05:48:26,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:26,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:26,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:26,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:26,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124604404] [2021-11-20 05:48:26,459 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:26,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921289544] [2021-11-20 05:48:26,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921289544] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:26,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:26,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:48:26,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719242704] [2021-11-20 05:48:26,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:26,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 05:48:26,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:26,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:48:26,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:26,461 INFO L87 Difference]: Start difference. First operand 342 states and 441 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-20 05:48:26,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:26,572 INFO L93 Difference]: Finished difference Result 692 states and 904 transitions. [2021-11-20 05:48:26,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:48:26,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 72 [2021-11-20 05:48:26,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:26,577 INFO L225 Difference]: With dead ends: 692 [2021-11-20 05:48:26,578 INFO L226 Difference]: Without dead ends: 409 [2021-11-20 05:48:26,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:48:26,579 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 100 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 636 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:26,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [103 Valid, 636 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:48:26,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-20 05:48:26,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 406. [2021-11-20 05:48:26,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 370 states have (on average 1.2891891891891891) internal successors, (477), 391 states have internal predecessors, (477), 25 states have call successors, (25), 5 states have call predecessors, (25), 4 states have return successors, (25), 10 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-20 05:48:26,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 527 transitions. [2021-11-20 05:48:26,607 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 527 transitions. Word has length 72 [2021-11-20 05:48:26,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:26,609 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 527 transitions. [2021-11-20 05:48:26,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-20 05:48:26,610 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 527 transitions. [2021-11-20 05:48:26,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-20 05:48:26,612 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:26,612 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:26,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:26,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:26,833 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:26,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:26,834 INFO L85 PathProgramCache]: Analyzing trace with hash -865861414, now seen corresponding path program 1 times [2021-11-20 05:48:26,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:26,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689566200] [2021-11-20 05:48:26,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:26,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:26,865 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:26,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1506518822] [2021-11-20 05:48:26,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:26,873 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:26,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:26,874 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:26,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-20 05:48:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:27,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 05:48:27,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:27,503 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:48:27,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 05:48:27,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:27,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689566200] [2021-11-20 05:48:27,504 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:27,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506518822] [2021-11-20 05:48:27,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506518822] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:48:27,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:48:27,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:48:27,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498223806] [2021-11-20 05:48:27,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:48:27,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 05:48:27,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:27,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:48:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:48:27,507 INFO L87 Difference]: Start difference. First operand 406 states and 527 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 05:48:27,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:27,591 INFO L93 Difference]: Finished difference Result 765 states and 1007 transitions. [2021-11-20 05:48:27,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:48:27,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 87 [2021-11-20 05:48:27,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:27,599 INFO L225 Difference]: With dead ends: 765 [2021-11-20 05:48:27,600 INFO L226 Difference]: Without dead ends: 412 [2021-11-20 05:48:27,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:48:27,604 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 2 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:27,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 920 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 05:48:27,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-20 05:48:27,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-20 05:48:27,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 374 states have (on average 1.2914438502673797) internal successors, (483), 397 states have internal predecessors, (483), 25 states have call successors, (25), 5 states have call predecessors, (25), 6 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-11-20 05:48:27,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 535 transitions. [2021-11-20 05:48:27,630 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 535 transitions. Word has length 87 [2021-11-20 05:48:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:27,630 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 535 transitions. [2021-11-20 05:48:27,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 05:48:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 535 transitions. [2021-11-20 05:48:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-20 05:48:27,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:27,634 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:27,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:27,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:27,838 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:27,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1245758072, now seen corresponding path program 1 times [2021-11-20 05:48:27,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841750926] [2021-11-20 05:48:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:27,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:27,852 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:27,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805788455] [2021-11-20 05:48:27,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:27,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:27,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:27,859 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:27,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-20 05:48:28,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:48:28,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 05:48:28,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:48:28,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:48:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 05:48:28,732 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:28,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841750926] [2021-11-20 05:48:28,732 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:28,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805788455] [2021-11-20 05:48:28,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805788455] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:48:28,732 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:48:28,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-11-20 05:48:28,733 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143992165] [2021-11-20 05:48:28,733 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:48:28,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 05:48:28,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:28,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 05:48:28,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 05:48:28,735 INFO L87 Difference]: Start difference. First operand 412 states and 535 transitions. Second operand has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 05:48:28,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:28,928 INFO L93 Difference]: Finished difference Result 793 states and 1051 transitions. [2021-11-20 05:48:28,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 05:48:28,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2021-11-20 05:48:28,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:28,933 INFO L225 Difference]: With dead ends: 793 [2021-11-20 05:48:28,933 INFO L226 Difference]: Without dead ends: 430 [2021-11-20 05:48:28,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=79, Unknown=0, NotChecked=0, Total=132 [2021-11-20 05:48:28,935 INFO L933 BasicCegarLoop]: 307 mSDtfsCounter, 16 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:28,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 1822 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 05:48:28,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-20 05:48:28,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2021-11-20 05:48:28,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 390 states have (on average 1.3) internal successors, (507), 413 states have internal predecessors, (507), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (29), 10 states have call predecessors, (29), 25 states have call successors, (29) [2021-11-20 05:48:28,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 561 transitions. [2021-11-20 05:48:28,958 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 561 transitions. Word has length 89 [2021-11-20 05:48:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:28,958 INFO L470 AbstractCegarLoop]: Abstraction has 430 states and 561 transitions. [2021-11-20 05:48:28,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.875) internal successors, (95), 8 states have internal predecessors, (95), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 05:48:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 561 transitions. [2021-11-20 05:48:28,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-20 05:48:28,960 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:28,960 INFO L514 BasicCegarLoop]: trace histogram [6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:28,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:29,175 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-20 05:48:29,175 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:29,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:29,176 INFO L85 PathProgramCache]: Analyzing trace with hash 213616922, now seen corresponding path program 2 times [2021-11-20 05:48:29,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:29,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312350703] [2021-11-20 05:48:29,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:29,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:29,191 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:29,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [542342241] [2021-11-20 05:48:29,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 05:48:29,192 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:29,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:29,205 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:29,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-20 05:48:31,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 05:48:31,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 05:48:31,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-20 05:48:31,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 05:48:31,314 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:48:31,314 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 05:48:31,674 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 05:48:31,675 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:48:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312350703] [2021-11-20 05:48:31,675 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 05:48:31,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542342241] [2021-11-20 05:48:31,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542342241] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 05:48:31,675 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-20 05:48:31,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2021-11-20 05:48:31,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926874325] [2021-11-20 05:48:31,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-20 05:48:31,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-20 05:48:31,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:48:31,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-20 05:48:31,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2021-11-20 05:48:31,678 INFO L87 Difference]: Start difference. First operand 430 states and 561 transitions. Second operand has 15 states, 15 states have (on average 6.8) internal successors, (102), 15 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 05:48:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:48:32,381 INFO L93 Difference]: Finished difference Result 881 states and 1167 transitions. [2021-11-20 05:48:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-20 05:48:32,382 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 15 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2021-11-20 05:48:32,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 05:48:32,386 INFO L225 Difference]: With dead ends: 881 [2021-11-20 05:48:32,386 INFO L226 Difference]: Without dead ends: 458 [2021-11-20 05:48:32,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=244, Invalid=512, Unknown=0, NotChecked=0, Total=756 [2021-11-20 05:48:32,389 INFO L933 BasicCegarLoop]: 303 mSDtfsCounter, 311 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 05:48:32,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [318 Valid, 1895 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 05:48:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2021-11-20 05:48:32,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 442. [2021-11-20 05:48:32,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 402 states have (on average 1.3258706467661692) internal successors, (533), 425 states have internal predecessors, (533), 25 states have call successors, (25), 7 states have call predecessors, (25), 8 states have return successors, (27), 10 states have call predecessors, (27), 25 states have call successors, (27) [2021-11-20 05:48:32,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 585 transitions. [2021-11-20 05:48:32,413 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 585 transitions. Word has length 93 [2021-11-20 05:48:32,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 05:48:32,414 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 585 transitions. [2021-11-20 05:48:32,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.8) internal successors, (102), 15 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-20 05:48:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 585 transitions. [2021-11-20 05:48:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-11-20 05:48:32,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 05:48:32,416 INFO L514 BasicCegarLoop]: trace histogram [15, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:48:32,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-20 05:48:32,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:32,624 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [test_intErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, test_intErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 05:48:32,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:48:32,625 INFO L85 PathProgramCache]: Analyzing trace with hash 2060172636, now seen corresponding path program 3 times [2021-11-20 05:48:32,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:48:32,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742558702] [2021-11-20 05:48:32,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:48:32,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:48:32,641 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 05:48:32,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2097059833] [2021-11-20 05:48:32,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 05:48:32,642 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 05:48:32,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:48:32,647 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 05:48:32,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30d60e6d-09cc-4e05-946c-05e88407fcde/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process