./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:14:40,745 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:14:40,873 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-32bit-Taipan_Default.epf [2023-11-19 05:14:40,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:14:40,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:14:40,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:14:40,924 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:14:40,924 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:14:40,925 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:14:40,926 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:14:40,927 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:14:40,927 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:14:40,928 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:14:40,929 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:14:40,929 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:14:40,930 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:14:40,931 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:14:40,931 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:14:40,932 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:14:40,933 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:14:40,933 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:14:40,934 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:14:40,935 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:14:40,936 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:14:40,937 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 05:14:40,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:14:40,938 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 05:14:40,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:14:40,939 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:14:40,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:14:40,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:14:40,941 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:14:40,942 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:14:40,942 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 05:14:40,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:14:40,943 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:14:40,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:14:40,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:14:40,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:40,959 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:14:40,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:14:40,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:14:40,960 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:14:40,961 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:14:40,961 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:14:40,961 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:14:40,961 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:14:40,962 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ff1cedc7411bab7c4dff496b498f1be2a7af9e572a1448d390780005c75fec3 [2023-11-19 05:14:41,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:14:41,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:14:41,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:14:41,405 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:14:41,406 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:14:41,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-11-19 05:14:44,665 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:14:44,982 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:14:44,983 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/sv-benchmarks/c/seq-mthreaded/pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-11-19 05:14:44,999 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/data/554aef962/ee11c64001f4466f9e3749e91f19d972/FLAG3bd6cbcd1 [2023-11-19 05:14:45,016 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/data/554aef962/ee11c64001f4466f9e3749e91f19d972 [2023-11-19 05:14:45,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:14:45,020 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:14:45,022 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:45,022 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:14:45,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:14:45,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd60925 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45, skipping insertion in model container [2023-11-19 05:14:45,037 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,103 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:14:45,324 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:45,336 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:14:45,406 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:14:45,442 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:14:45,442 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45 WrapperNode [2023-11-19 05:14:45,442 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:14:45,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:45,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:14:45,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:14:45,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,466 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,513 INFO L138 Inliner]: procedures = 28, calls = 52, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 418 [2023-11-19 05:14:45,514 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:14:45,515 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:14:45,515 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:14:45,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:14:45,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,532 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,549 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,571 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,575 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,578 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,583 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:14:45,584 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:14:45,584 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:14:45,584 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:14:45,585 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (1/1) ... [2023-11-19 05:14:45,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:14:45,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:45,622 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:14:45,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:14:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:14:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure write_history_bool [2023-11-19 05:14:45,699 INFO L138 BoogieDeclarations]: Found implementation of procedure write_history_bool [2023-11-19 05:14:45,699 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-11-19 05:14:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-11-19 05:14:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_int8 [2023-11-19 05:14:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_int8 [2023-11-19 05:14:45,702 INFO L130 BoogieDeclarations]: Found specification of procedure read_history_bool [2023-11-19 05:14:45,702 INFO L138 BoogieDeclarations]: Found implementation of procedure read_history_bool [2023-11-19 05:14:45,703 INFO L130 BoogieDeclarations]: Found specification of procedure add_history_type [2023-11-19 05:14:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure add_history_type [2023-11-19 05:14:45,704 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:14:45,704 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:14:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:14:45,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:14:45,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:14:45,865 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:14:45,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:14:46,548 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:14:46,805 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:14:46,806 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 05:14:46,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:46 BoogieIcfgContainer [2023-11-19 05:14:46,815 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:14:46,817 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:14:46,817 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:14:46,821 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:14:46,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:14:45" (1/3) ... [2023-11-19 05:14:46,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308852e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:46, skipping insertion in model container [2023-11-19 05:14:46,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:14:45" (2/3) ... [2023-11-19 05:14:46,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@308852e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:14:46, skipping insertion in model container [2023-11-19 05:14:46,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:46" (3/3) ... [2023-11-19 05:14:46,825 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_STARTPALS_Triplicated.ufo.UNBOUNDED.pals.c [2023-11-19 05:14:46,842 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:14:46,843 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-19 05:14:46,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:14:46,911 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6b8bcbb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:14:46,911 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-19 05:14:46,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-19 05:14:46,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 05:14:46,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:46,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:46,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:46,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2120393400, now seen corresponding path program 1 times [2023-11-19 05:14:46,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:46,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824540584] [2023-11-19 05:14:46,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:46,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:47,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:47,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:47,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:47,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824540584] [2023-11-19 05:14:47,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824540584] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:47,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:47,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 05:14:47,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455165381] [2023-11-19 05:14:47,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:47,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:47,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:47,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:47,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:14:47,307 INFO L87 Difference]: Start difference. First operand has 159 states, 107 states have (on average 1.5420560747663552) internal successors, (165), 119 states have internal predecessors, (165), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 05:14:47,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:47,529 INFO L93 Difference]: Finished difference Result 337 states and 508 transitions. [2023-11-19 05:14:47,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:47,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 10 [2023-11-19 05:14:47,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:47,544 INFO L225 Difference]: With dead ends: 337 [2023-11-19 05:14:47,545 INFO L226 Difference]: Without dead ends: 180 [2023-11-19 05:14:47,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:47,556 INFO L413 NwaCegarLoop]: 221 mSDtfsCounter, 34 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:47,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 656 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:47,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2023-11-19 05:14:47,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 174. [2023-11-19 05:14:47,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 132 states have internal predecessors, (185), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 05:14:47,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 261 transitions. [2023-11-19 05:14:47,639 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 261 transitions. Word has length 10 [2023-11-19 05:14:47,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:47,640 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 261 transitions. [2023-11-19 05:14:47,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-19 05:14:47,640 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 261 transitions. [2023-11-19 05:14:47,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 05:14:47,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:47,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:47,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:14:47,643 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:47,644 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:47,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1047396964, now seen corresponding path program 1 times [2023-11-19 05:14:47,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:47,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33198617] [2023-11-19 05:14:47,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 05:14:47,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:47,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33198617] [2023-11-19 05:14:47,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33198617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:47,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:47,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:47,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244558700] [2023-11-19 05:14:47,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:47,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:47,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:47,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:47,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:14:47,767 INFO L87 Difference]: Start difference. First operand 174 states and 261 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:14:47,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:47,883 INFO L93 Difference]: Finished difference Result 372 states and 568 transitions. [2023-11-19 05:14:47,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:47,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2023-11-19 05:14:47,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:47,888 INFO L225 Difference]: With dead ends: 372 [2023-11-19 05:14:47,888 INFO L226 Difference]: Without dead ends: 209 [2023-11-19 05:14:47,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:47,892 INFO L413 NwaCegarLoop]: 223 mSDtfsCounter, 21 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:47,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 663 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:47,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2023-11-19 05:14:47,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 205. [2023-11-19 05:14:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 147 states have (on average 1.4965986394557824) internal successors, (220), 158 states have internal predecessors, (220), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 05:14:47,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 306 transitions. [2023-11-19 05:14:47,931 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 306 transitions. Word has length 14 [2023-11-19 05:14:47,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:47,932 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 306 transitions. [2023-11-19 05:14:47,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 05:14:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 306 transitions. [2023-11-19 05:14:47,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 05:14:47,935 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:47,935 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-11-19 05:14:47,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:14:47,936 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:47,936 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:47,937 INFO L85 PathProgramCache]: Analyzing trace with hash -17843930, now seen corresponding path program 1 times [2023-11-19 05:14:47,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:47,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703373658] [2023-11-19 05:14:47,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:47,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:14:48,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703373658] [2023-11-19 05:14:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703373658] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:48,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233049399] [2023-11-19 05:14:48,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:48,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:48,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:48,235 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 05:14:48,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:48,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:48,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:48,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 05:14:48,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:48,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233049399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:48,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:48,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2023-11-19 05:14:48,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758986953] [2023-11-19 05:14:48,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:48,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:14:48,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:48,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:14:48,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:48,520 INFO L87 Difference]: Start difference. First operand 205 states and 306 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:14:48,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:48,706 INFO L93 Difference]: Finished difference Result 209 states and 312 transitions. [2023-11-19 05:14:48,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:14:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2023-11-19 05:14:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:48,717 INFO L225 Difference]: With dead ends: 209 [2023-11-19 05:14:48,717 INFO L226 Difference]: Without dead ends: 208 [2023-11-19 05:14:48,718 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:14:48,719 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 49 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:48,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 950 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2023-11-19 05:14:48,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 204. [2023-11-19 05:14:48,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 147 states have (on average 1.4761904761904763) internal successors, (217), 157 states have internal predecessors, (217), 43 states have call successors, (43), 7 states have call predecessors, (43), 7 states have return successors, (43), 43 states have call predecessors, (43), 43 states have call successors, (43) [2023-11-19 05:14:48,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 303 transitions. [2023-11-19 05:14:48,780 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 303 transitions. Word has length 26 [2023-11-19 05:14:48,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:48,780 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 303 transitions. [2023-11-19 05:14:48,781 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:14:48,781 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 303 transitions. [2023-11-19 05:14:48,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 05:14:48,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:48,788 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-11-19 05:14:48,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:49,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:49,007 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:49,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:49,008 INFO L85 PathProgramCache]: Analyzing trace with hash -553161302, now seen corresponding path program 1 times [2023-11-19 05:14:49,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:49,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013625185] [2023-11-19 05:14:49,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:49,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:49,187 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 05:14:49,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:49,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013625185] [2023-11-19 05:14:49,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013625185] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:49,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:14:49,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:14:49,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377477561] [2023-11-19 05:14:49,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:49,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:49,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:49,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:49,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:14:49,191 INFO L87 Difference]: Start difference. First operand 204 states and 303 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:14:49,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:49,295 INFO L93 Difference]: Finished difference Result 208 states and 309 transitions. [2023-11-19 05:14:49,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:49,296 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2023-11-19 05:14:49,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:49,301 INFO L225 Difference]: With dead ends: 208 [2023-11-19 05:14:49,301 INFO L226 Difference]: Without dead ends: 207 [2023-11-19 05:14:49,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 05:14:49,313 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 20 mSDsluCounter, 409 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 626 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:49,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 626 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:49,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-19 05:14:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 174. [2023-11-19 05:14:49,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 123 states have (on average 1.4715447154471544) internal successors, (181), 132 states have internal predecessors, (181), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-19 05:14:49,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 257 transitions. [2023-11-19 05:14:49,337 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 257 transitions. Word has length 27 [2023-11-19 05:14:49,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:49,337 INFO L495 AbstractCegarLoop]: Abstraction has 174 states and 257 transitions. [2023-11-19 05:14:49,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 05:14:49,338 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 257 transitions. [2023-11-19 05:14:49,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 05:14:49,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:49,345 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 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] [2023-11-19 05:14:49,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 05:14:49,345 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:49,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:49,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1942656485, now seen corresponding path program 1 times [2023-11-19 05:14:49,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:49,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763870238] [2023-11-19 05:14:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:49,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-19 05:14:49,604 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:49,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763870238] [2023-11-19 05:14:49,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763870238] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:49,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466607254] [2023-11-19 05:14:49,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:49,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:49,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:49,608 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:49,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 05:14:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:49,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:49,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:49,881 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 05:14:49,881 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:49,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466607254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:49,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:49,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-19 05:14:49,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399487641] [2023-11-19 05:14:49,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:49,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:49,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:49,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:49,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:49,890 INFO L87 Difference]: Start difference. First operand 174 states and 257 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:50,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:50,028 INFO L93 Difference]: Finished difference Result 299 states and 447 transitions. [2023-11-19 05:14:50,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:50,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 79 [2023-11-19 05:14:50,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:50,035 INFO L225 Difference]: With dead ends: 299 [2023-11-19 05:14:50,035 INFO L226 Difference]: Without dead ends: 181 [2023-11-19 05:14:50,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:50,040 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 20 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:50,042 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 621 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:50,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-19 05:14:50,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2023-11-19 05:14:50,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 128 states have (on average 1.4765625) internal successors, (189), 138 states have internal predecessors, (189), 39 states have call successors, (39), 8 states have call predecessors, (39), 8 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-19 05:14:50,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 267 transitions. [2023-11-19 05:14:50,088 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 267 transitions. Word has length 79 [2023-11-19 05:14:50,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:50,091 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 267 transitions. [2023-11-19 05:14:50,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:50,091 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 267 transitions. [2023-11-19 05:14:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-19 05:14:50,106 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:50,108 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2023-11-19 05:14:50,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:50,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:50,323 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:50,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:50,324 INFO L85 PathProgramCache]: Analyzing trace with hash -422475795, now seen corresponding path program 1 times [2023-11-19 05:14:50,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:50,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780268057] [2023-11-19 05:14:50,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:50,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:50,585 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 05:14:50,586 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:50,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780268057] [2023-11-19 05:14:50,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780268057] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:50,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20649225] [2023-11-19 05:14:50,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:50,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:50,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:50,588 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:50,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 05:14:50,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:50,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:50,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 05:14:50,825 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:50,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20649225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:50,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:50,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-19 05:14:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501408166] [2023-11-19 05:14:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:50,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:50,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:50,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:50,829 INFO L87 Difference]: Start difference. First operand 181 states and 267 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:50,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:50,949 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2023-11-19 05:14:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:50,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 81 [2023-11-19 05:14:50,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:50,954 INFO L225 Difference]: With dead ends: 313 [2023-11-19 05:14:50,954 INFO L226 Difference]: Without dead ends: 188 [2023-11-19 05:14:50,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:50,957 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 18 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:50,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 621 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:50,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-19 05:14:50,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-19 05:14:50,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 133 states have (on average 1.481203007518797) internal successors, (197), 144 states have internal predecessors, (197), 40 states have call successors, (40), 9 states have call predecessors, (40), 9 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-19 05:14:50,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 277 transitions. [2023-11-19 05:14:50,981 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 277 transitions. Word has length 81 [2023-11-19 05:14:50,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:50,982 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 277 transitions. [2023-11-19 05:14:50,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:50,983 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 277 transitions. [2023-11-19 05:14:50,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 05:14:50,987 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:50,987 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 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] [2023-11-19 05:14:51,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:51,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:51,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:51,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:51,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1794989032, now seen corresponding path program 1 times [2023-11-19 05:14:51,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:51,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759182263] [2023-11-19 05:14:51,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:51,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-19 05:14:51,344 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:51,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759182263] [2023-11-19 05:14:51,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759182263] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:51,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126287857] [2023-11-19 05:14:51,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:51,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:51,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:51,346 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:51,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 05:14:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:51,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:51,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:51,542 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-11-19 05:14:51,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:51,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126287857] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:51,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:51,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-19 05:14:51,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825068530] [2023-11-19 05:14:51,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:51,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:51,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:51,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:51,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:51,545 INFO L87 Difference]: Start difference. First operand 188 states and 277 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:51,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:51,671 INFO L93 Difference]: Finished difference Result 367 states and 552 transitions. [2023-11-19 05:14:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:51,672 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 82 [2023-11-19 05:14:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:51,674 INFO L225 Difference]: With dead ends: 367 [2023-11-19 05:14:51,675 INFO L226 Difference]: Without dead ends: 196 [2023-11-19 05:14:51,676 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:51,677 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 23 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:51,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 599 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:51,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-19 05:14:51,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2023-11-19 05:14:51,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 139 states have (on average 1.4820143884892085) internal successors, (206), 150 states have internal predecessors, (206), 41 states have call successors, (41), 10 states have call predecessors, (41), 10 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2023-11-19 05:14:51,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 288 transitions. [2023-11-19 05:14:51,697 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 288 transitions. Word has length 82 [2023-11-19 05:14:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:51,697 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 288 transitions. [2023-11-19 05:14:51,698 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 288 transitions. [2023-11-19 05:14:51,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-11-19 05:14:51,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:51,700 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 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] [2023-11-19 05:14:51,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:51,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-19 05:14:51,925 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:51,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:51,925 INFO L85 PathProgramCache]: Analyzing trace with hash 884494544, now seen corresponding path program 1 times [2023-11-19 05:14:51,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:51,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249424433] [2023-11-19 05:14:51,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:51,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-19 05:14:52,076 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:52,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249424433] [2023-11-19 05:14:52,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249424433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:52,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390607652] [2023-11-19 05:14:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:52,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:52,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:52,079 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:52,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 05:14:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:52,252 INFO L262 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:52,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:52,284 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 05:14:52,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:52,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390607652] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:52,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:52,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-11-19 05:14:52,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032869201] [2023-11-19 05:14:52,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:52,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:52,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:52,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:52,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:52,288 INFO L87 Difference]: Start difference. First operand 196 states and 288 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:52,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:52,413 INFO L93 Difference]: Finished difference Result 383 states and 571 transitions. [2023-11-19 05:14:52,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:52,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2023-11-19 05:14:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:52,417 INFO L225 Difference]: With dead ends: 383 [2023-11-19 05:14:52,418 INFO L226 Difference]: Without dead ends: 204 [2023-11-19 05:14:52,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:52,422 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 21 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:52,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 599 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:52,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-11-19 05:14:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2023-11-19 05:14:52,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 145 states have (on average 1.4827586206896552) internal successors, (215), 156 states have internal predecessors, (215), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 05:14:52,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 299 transitions. [2023-11-19 05:14:52,446 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 299 transitions. Word has length 84 [2023-11-19 05:14:52,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:52,447 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 299 transitions. [2023-11-19 05:14:52,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 299 transitions. [2023-11-19 05:14:52,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-19 05:14:52,451 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:52,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-11-19 05:14:52,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:52,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-19 05:14:52,667 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:52,667 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:52,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1400401251, now seen corresponding path program 1 times [2023-11-19 05:14:52,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:52,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214541654] [2023-11-19 05:14:52,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:52,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:52,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:52,803 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-19 05:14:52,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:52,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214541654] [2023-11-19 05:14:52,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214541654] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:52,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398635408] [2023-11-19 05:14:52,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:52,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:52,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:52,805 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:52,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 05:14:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:52,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:52,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:53,004 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 05:14:53,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:53,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398635408] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:53,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:53,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:53,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491174095] [2023-11-19 05:14:53,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:53,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:53,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:53,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:53,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:53,008 INFO L87 Difference]: Start difference. First operand 204 states and 299 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:53,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:53,103 INFO L93 Difference]: Finished difference Result 245 states and 365 transitions. [2023-11-19 05:14:53,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:53,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2023-11-19 05:14:53,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:53,107 INFO L225 Difference]: With dead ends: 245 [2023-11-19 05:14:53,107 INFO L226 Difference]: Without dead ends: 244 [2023-11-19 05:14:53,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:53,108 INFO L413 NwaCegarLoop]: 256 mSDtfsCounter, 56 mSDsluCounter, 459 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:53,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 715 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:53,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2023-11-19 05:14:53,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 203. [2023-11-19 05:14:53,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 145 states have (on average 1.4758620689655173) internal successors, (214), 155 states have internal predecessors, (214), 42 states have call successors, (42), 11 states have call predecessors, (42), 11 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-19 05:14:53,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 298 transitions. [2023-11-19 05:14:53,126 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 298 transitions. Word has length 85 [2023-11-19 05:14:53,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:53,128 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 298 transitions. [2023-11-19 05:14:53,128 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:53,128 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 298 transitions. [2023-11-19 05:14:53,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-19 05:14:53,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:53,137 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2023-11-19 05:14:53,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:53,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:53,350 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:53,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:53,351 INFO L85 PathProgramCache]: Analyzing trace with hash 462766143, now seen corresponding path program 1 times [2023-11-19 05:14:53,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:53,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518671818] [2023-11-19 05:14:53,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:53,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:53,530 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-11-19 05:14:53,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:53,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518671818] [2023-11-19 05:14:53,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518671818] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:53,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918433105] [2023-11-19 05:14:53,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:53,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:53,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:53,533 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:53,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 05:14:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:53,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 450 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:53,712 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-19 05:14:53,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:53,754 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918433105] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:53,755 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:53,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:53,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288731057] [2023-11-19 05:14:53,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:53,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:53,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:53,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:53,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:53,761 INFO L87 Difference]: Start difference. First operand 203 states and 298 transitions. Second operand has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:53,859 INFO L93 Difference]: Finished difference Result 369 states and 546 transitions. [2023-11-19 05:14:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:14:53,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2023-11-19 05:14:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:53,862 INFO L225 Difference]: With dead ends: 369 [2023-11-19 05:14:53,862 INFO L226 Difference]: Without dead ends: 222 [2023-11-19 05:14:53,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:53,864 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 23 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:53,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 656 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:53,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2023-11-19 05:14:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 213. [2023-11-19 05:14:53,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 154 states have (on average 1.474025974025974) internal successors, (227), 163 states have internal predecessors, (227), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 05:14:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 315 transitions. [2023-11-19 05:14:53,887 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 315 transitions. Word has length 86 [2023-11-19 05:14:53,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:53,887 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 315 transitions. [2023-11-19 05:14:53,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.666666666666668) internal successors, (50), 4 states have internal predecessors, (50), 2 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-19 05:14:53,888 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 315 transitions. [2023-11-19 05:14:53,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-19 05:14:53,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:53,891 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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] [2023-11-19 05:14:53,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:54,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:54,116 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:54,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:54,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1432071786, now seen corresponding path program 1 times [2023-11-19 05:14:54,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:54,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934569482] [2023-11-19 05:14:54,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:54,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:54,244 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 05:14:54,245 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:54,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934569482] [2023-11-19 05:14:54,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934569482] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:54,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818068595] [2023-11-19 05:14:54,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:54,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:54,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:54,248 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:54,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 05:14:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:54,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:54,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:54,461 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 05:14:54,461 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:54,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818068595] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:54,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:54,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:54,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602004593] [2023-11-19 05:14:54,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:54,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:54,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:54,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:54,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:54,465 INFO L87 Difference]: Start difference. First operand 213 states and 315 transitions. Second operand has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:54,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:54,558 INFO L93 Difference]: Finished difference Result 258 states and 385 transitions. [2023-11-19 05:14:54,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:54,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 92 [2023-11-19 05:14:54,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:54,562 INFO L225 Difference]: With dead ends: 258 [2023-11-19 05:14:54,562 INFO L226 Difference]: Without dead ends: 257 [2023-11-19 05:14:54,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:54,564 INFO L413 NwaCegarLoop]: 265 mSDtfsCounter, 49 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:54,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 735 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:54,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-19 05:14:54,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 214. [2023-11-19 05:14:54,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 155 states have (on average 1.4709677419354839) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 05:14:54,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2023-11-19 05:14:54,580 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 92 [2023-11-19 05:14:54,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:54,581 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2023-11-19 05:14:54,581 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.0) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:54,581 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2023-11-19 05:14:54,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-19 05:14:54,583 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:54,584 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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] [2023-11-19 05:14:54,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:54,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-19 05:14:54,799 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:54,799 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:54,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1444552072, now seen corresponding path program 1 times [2023-11-19 05:14:54,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:54,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330642000] [2023-11-19 05:14:54,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:54,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:54,951 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 05:14:54,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:54,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330642000] [2023-11-19 05:14:54,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330642000] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:54,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623752191] [2023-11-19 05:14:54,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:54,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:54,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:54,953 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:54,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 05:14:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:55,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:55,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:55,174 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 05:14:55,174 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:55,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623752191] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:55,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:55,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:55,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035781850] [2023-11-19 05:14:55,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:55,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:55,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:55,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:55,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:55,177 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:55,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:55,264 INFO L93 Difference]: Finished difference Result 221 states and 323 transitions. [2023-11-19 05:14:55,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:55,265 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 93 [2023-11-19 05:14:55,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:55,267 INFO L225 Difference]: With dead ends: 221 [2023-11-19 05:14:55,268 INFO L226 Difference]: Without dead ends: 220 [2023-11-19 05:14:55,268 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:55,269 INFO L413 NwaCegarLoop]: 212 mSDtfsCounter, 19 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:55,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 622 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:55,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2023-11-19 05:14:55,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 215. [2023-11-19 05:14:55,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 156 states have (on average 1.4679487179487178) internal successors, (229), 165 states have internal predecessors, (229), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 05:14:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2023-11-19 05:14:55,285 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 93 [2023-11-19 05:14:55,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:55,285 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2023-11-19 05:14:55,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2023-11-19 05:14:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 05:14:55,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:55,288 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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] [2023-11-19 05:14:55,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:55,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:55,503 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:55,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash -134802862, now seen corresponding path program 1 times [2023-11-19 05:14:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:55,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664800648] [2023-11-19 05:14:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:55,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:55,610 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 05:14:55,611 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:55,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664800648] [2023-11-19 05:14:55,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664800648] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:55,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802182923] [2023-11-19 05:14:55,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:55,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:55,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:55,613 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:55,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 05:14:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:55,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:14:55,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:55,815 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 05:14:55,815 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:55,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802182923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:55,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:55,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-19 05:14:55,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031859221] [2023-11-19 05:14:55,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:55,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:14:55,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:55,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:14:55,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:55,819 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:55,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:55,941 INFO L93 Difference]: Finished difference Result 249 states and 374 transitions. [2023-11-19 05:14:55,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:55,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 94 [2023-11-19 05:14:55,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:55,945 INFO L225 Difference]: With dead ends: 249 [2023-11-19 05:14:55,945 INFO L226 Difference]: Without dead ends: 248 [2023-11-19 05:14:55,946 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:14:55,947 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 54 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:55,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 951 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:55,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2023-11-19 05:14:55,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 214. [2023-11-19 05:14:55,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 156 states have (on average 1.4615384615384615) internal successors, (228), 164 states have internal predecessors, (228), 44 states have call successors, (44), 11 states have call predecessors, (44), 11 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-19 05:14:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 316 transitions. [2023-11-19 05:14:55,965 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 316 transitions. Word has length 94 [2023-11-19 05:14:55,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:55,965 INFO L495 AbstractCegarLoop]: Abstraction has 214 states and 316 transitions. [2023-11-19 05:14:55,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-19 05:14:55,966 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 316 transitions. [2023-11-19 05:14:55,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-19 05:14:55,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:55,969 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 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] [2023-11-19 05:14:55,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:56,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:56,183 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:56,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:56,184 INFO L85 PathProgramCache]: Analyzing trace with hash 116078908, now seen corresponding path program 1 times [2023-11-19 05:14:56,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:56,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275456551] [2023-11-19 05:14:56,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:56,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:56,355 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-19 05:14:56,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:56,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275456551] [2023-11-19 05:14:56,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275456551] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:56,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1887075001] [2023-11-19 05:14:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:56,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:56,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:56,359 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:56,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 05:14:56,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:56,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:14:56,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:56,623 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-19 05:14:56,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:56,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1887075001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:56,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:56,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-19 05:14:56,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355123828] [2023-11-19 05:14:56,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:56,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:14:56,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:56,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:14:56,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:14:56,628 INFO L87 Difference]: Start difference. First operand 214 states and 316 transitions. Second operand has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:14:56,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:56,805 INFO L93 Difference]: Finished difference Result 417 states and 624 transitions. [2023-11-19 05:14:56,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:14:56,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 95 [2023-11-19 05:14:56,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:56,809 INFO L225 Difference]: With dead ends: 417 [2023-11-19 05:14:56,809 INFO L226 Difference]: Without dead ends: 259 [2023-11-19 05:14:56,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:14:56,811 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 65 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:56,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1234 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:56,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2023-11-19 05:14:56,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 217. [2023-11-19 05:14:56,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 159 states have (on average 1.471698113207547) internal successors, (234), 166 states have internal predecessors, (234), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:14:56,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 324 transitions. [2023-11-19 05:14:56,833 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 324 transitions. Word has length 95 [2023-11-19 05:14:56,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:56,833 INFO L495 AbstractCegarLoop]: Abstraction has 217 states and 324 transitions. [2023-11-19 05:14:56,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.8) internal successors, (54), 6 states have internal predecessors, (54), 3 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2023-11-19 05:14:56,834 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 324 transitions. [2023-11-19 05:14:56,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-19 05:14:56,837 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:56,837 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:14:56,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:57,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 05:14:57,051 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:57,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:57,051 INFO L85 PathProgramCache]: Analyzing trace with hash 740373655, now seen corresponding path program 1 times [2023-11-19 05:14:57,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:57,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413260939] [2023-11-19 05:14:57,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:57,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:57,157 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:14:57,158 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413260939] [2023-11-19 05:14:57,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413260939] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:57,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842659493] [2023-11-19 05:14:57,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:57,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:57,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:57,160 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:57,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 05:14:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:57,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:57,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:14:57,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:57,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842659493] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:57,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:57,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:57,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493790755] [2023-11-19 05:14:57,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:57,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:57,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:57,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:57,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:57,370 INFO L87 Difference]: Start difference. First operand 217 states and 324 transitions. Second operand has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:57,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:57,471 INFO L93 Difference]: Finished difference Result 258 states and 388 transitions. [2023-11-19 05:14:57,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:57,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 99 [2023-11-19 05:14:57,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:57,475 INFO L225 Difference]: With dead ends: 258 [2023-11-19 05:14:57,476 INFO L226 Difference]: Without dead ends: 257 [2023-11-19 05:14:57,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:57,477 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 45 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:57,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 742 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2023-11-19 05:14:57,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 218. [2023-11-19 05:14:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 160 states have (on average 1.46875) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:14:57,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2023-11-19 05:14:57,496 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 99 [2023-11-19 05:14:57,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:57,497 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2023-11-19 05:14:57,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.666666666666668) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:57,497 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2023-11-19 05:14:57,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-19 05:14:57,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:57,500 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:14:57,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:57,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-19 05:14:57,715 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:57,715 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:57,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1476747171, now seen corresponding path program 1 times [2023-11-19 05:14:57,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:57,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020666943] [2023-11-19 05:14:57,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:57,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:57,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:57,845 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:14:57,845 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020666943] [2023-11-19 05:14:57,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020666943] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:57,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561915331] [2023-11-19 05:14:57,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:57,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:57,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:57,848 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:57,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 05:14:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:58,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 05:14:58,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:58,058 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:14:58,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:58,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561915331] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:58,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:58,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-11-19 05:14:58,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312656984] [2023-11-19 05:14:58,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:58,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:14:58,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:58,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:14:58,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:14:58,061 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:58,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:58,145 INFO L93 Difference]: Finished difference Result 224 states and 331 transitions. [2023-11-19 05:14:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 05:14:58,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 100 [2023-11-19 05:14:58,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:58,148 INFO L225 Difference]: With dead ends: 224 [2023-11-19 05:14:58,148 INFO L226 Difference]: Without dead ends: 223 [2023-11-19 05:14:58,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:58,149 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 15 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:58,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 641 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:58,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-19 05:14:58,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 219. [2023-11-19 05:14:58,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 161 states have (on average 1.4658385093167703) internal successors, (236), 168 states have internal predecessors, (236), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:14:58,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2023-11-19 05:14:58,164 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 100 [2023-11-19 05:14:58,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:58,165 INFO L495 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2023-11-19 05:14:58,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 18.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:58,165 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2023-11-19 05:14:58,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:14:58,167 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:58,168 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:14:58,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:58,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-19 05:14:58,391 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:58,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:58,392 INFO L85 PathProgramCache]: Analyzing trace with hash -913086373, now seen corresponding path program 1 times [2023-11-19 05:14:58,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:58,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346421270] [2023-11-19 05:14:58,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:58,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:58,519 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:14:58,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346421270] [2023-11-19 05:14:58,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346421270] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:58,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946270775] [2023-11-19 05:14:58,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:58,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:58,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:58,521 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:58,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 05:14:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:58,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:14:58,694 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:58,743 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:14:58,744 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:58,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946270775] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:58,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:58,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-19 05:14:58,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183796341] [2023-11-19 05:14:58,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:58,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:14:58,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:58,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:14:58,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:58,747 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:58,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:58,887 INFO L93 Difference]: Finished difference Result 257 states and 387 transitions. [2023-11-19 05:14:58,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 05:14:58,887 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-11-19 05:14:58,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:58,890 INFO L225 Difference]: With dead ends: 257 [2023-11-19 05:14:58,890 INFO L226 Difference]: Without dead ends: 256 [2023-11-19 05:14:58,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:14:58,891 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 49 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 956 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:58,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 956 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:58,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2023-11-19 05:14:58,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 220. [2023-11-19 05:14:58,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 162 states have (on average 1.462962962962963) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:14:58,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2023-11-19 05:14:58,909 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 101 [2023-11-19 05:14:58,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:58,914 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2023-11-19 05:14:58,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:58,915 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2023-11-19 05:14:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-11-19 05:14:58,917 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:58,917 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:14:58,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:59,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 05:14:59,141 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:59,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:59,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1468390547, now seen corresponding path program 1 times [2023-11-19 05:14:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519191043] [2023-11-19 05:14:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:59,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:59,265 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:14:59,265 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:14:59,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519191043] [2023-11-19 05:14:59,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519191043] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:14:59,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389552155] [2023-11-19 05:14:59,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:59,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:14:59,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:14:59,267 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:14:59,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 05:14:59,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:14:59,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 05:14:59,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:14:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:14:59,479 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:14:59,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389552155] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:14:59,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:14:59,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-11-19 05:14:59,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072426915] [2023-11-19 05:14:59,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:14:59,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 05:14:59,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:14:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 05:14:59,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-19 05:14:59,482 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:59,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:14:59,611 INFO L93 Difference]: Finished difference Result 259 states and 389 transitions. [2023-11-19 05:14:59,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:14:59,612 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2023-11-19 05:14:59,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:14:59,615 INFO L225 Difference]: With dead ends: 259 [2023-11-19 05:14:59,615 INFO L226 Difference]: Without dead ends: 258 [2023-11-19 05:14:59,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-19 05:14:59,616 INFO L413 NwaCegarLoop]: 252 mSDtfsCounter, 50 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 959 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:14:59,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 959 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:14:59,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2023-11-19 05:14:59,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 218. [2023-11-19 05:14:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:14:59,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2023-11-19 05:14:59,632 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 101 [2023-11-19 05:14:59,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:14:59,633 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2023-11-19 05:14:59,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.75) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2023-11-19 05:14:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2023-11-19 05:14:59,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 05:14:59,635 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:14:59,636 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:14:59,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 05:14:59,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 05:14:59,855 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:14:59,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:14:59,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1759093855, now seen corresponding path program 1 times [2023-11-19 05:14:59,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:14:59,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492758300] [2023-11-19 05:14:59,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:14:59,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:14:59,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:00,023 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:15:00,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:00,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492758300] [2023-11-19 05:15:00,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492758300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:15:00,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [738490340] [2023-11-19 05:15:00,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:00,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:00,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:00,025 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:00,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 05:15:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:00,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:15:00,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:00,274 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:15:00,274 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:00,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [738490340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:00,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:15:00,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-19 05:15:00,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348112244] [2023-11-19 05:15:00,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:00,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:15:00,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:00,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:15:00,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:15:00,279 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:15:00,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:00,431 INFO L93 Difference]: Finished difference Result 255 states and 381 transitions. [2023-11-19 05:15:00,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:15:00,432 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-11-19 05:15:00,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:00,435 INFO L225 Difference]: With dead ends: 255 [2023-11-19 05:15:00,435 INFO L226 Difference]: Without dead ends: 254 [2023-11-19 05:15:00,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:15:00,437 INFO L413 NwaCegarLoop]: 253 mSDtfsCounter, 75 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:00,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 997 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:15:00,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-11-19 05:15:00,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 218. [2023-11-19 05:15:00,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 161 states have (on average 1.4596273291925466) internal successors, (235), 167 states have internal predecessors, (235), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:15:00,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 325 transitions. [2023-11-19 05:15:00,452 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 325 transitions. Word has length 102 [2023-11-19 05:15:00,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:00,453 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 325 transitions. [2023-11-19 05:15:00,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:15:00,454 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 325 transitions. [2023-11-19 05:15:00,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-19 05:15:00,456 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:00,456 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:15:00,484 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:00,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:00,671 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:15:00,671 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:00,671 INFO L85 PathProgramCache]: Analyzing trace with hash -1724532953, now seen corresponding path program 1 times [2023-11-19 05:15:00,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:00,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724474331] [2023-11-19 05:15:00,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:00,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:00,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:00,833 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:15:00,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:00,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724474331] [2023-11-19 05:15:00,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724474331] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:15:00,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760245322] [2023-11-19 05:15:00,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:00,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:00,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:00,836 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:00,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-19 05:15:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:01,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 05:15:01,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:01,060 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:15:01,061 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:01,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760245322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:01,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:15:01,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2023-11-19 05:15:01,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955319860] [2023-11-19 05:15:01,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:01,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 05:15:01,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:01,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 05:15:01,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-19 05:15:01,063 INFO L87 Difference]: Start difference. First operand 218 states and 325 transitions. Second operand has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:15:01,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:01,214 INFO L93 Difference]: Finished difference Result 425 states and 642 transitions. [2023-11-19 05:15:01,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 05:15:01,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 102 [2023-11-19 05:15:01,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:01,217 INFO L225 Difference]: With dead ends: 425 [2023-11-19 05:15:01,217 INFO L226 Difference]: Without dead ends: 263 [2023-11-19 05:15:01,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-11-19 05:15:01,219 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 54 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1246 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:01,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1246 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 05:15:01,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2023-11-19 05:15:01,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 220. [2023-11-19 05:15:01,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 163 states have (on average 1.4539877300613497) internal successors, (237), 169 states have internal predecessors, (237), 45 states have call successors, (45), 11 states have call predecessors, (45), 11 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 05:15:01,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 327 transitions. [2023-11-19 05:15:01,237 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 327 transitions. Word has length 102 [2023-11-19 05:15:01,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:01,238 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 327 transitions. [2023-11-19 05:15:01,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.2) internal successors, (56), 6 states have internal predecessors, (56), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-19 05:15:01,238 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 327 transitions. [2023-11-19 05:15:01,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-19 05:15:01,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:15:01,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 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] [2023-11-19 05:15:01,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:01,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:01,461 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-19 05:15:01,462 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:15:01,462 INFO L85 PathProgramCache]: Analyzing trace with hash -972309277, now seen corresponding path program 1 times [2023-11-19 05:15:01,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:15:01,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877184913] [2023-11-19 05:15:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:01,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:15:01,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:01,573 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-19 05:15:01,573 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:15:01,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877184913] [2023-11-19 05:15:01,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877184913] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 05:15:01,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118472589] [2023-11-19 05:15:01,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:15:01,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:01,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:15:01,575 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 05:15:01,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-19 05:15:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:15:01,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 05:15:01,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 05:15:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-11-19 05:15:01,803 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 05:15:01,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118472589] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:15:01,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 05:15:01,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 11 [2023-11-19 05:15:01,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952881100] [2023-11-19 05:15:01,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:15:01,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-19 05:15:01,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:15:01,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-19 05:15:01,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2023-11-19 05:15:01,805 INFO L87 Difference]: Start difference. First operand 220 states and 327 transitions. Second operand has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:15:02,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:15:02,062 INFO L93 Difference]: Finished difference Result 297 states and 451 transitions. [2023-11-19 05:15:02,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-19 05:15:02,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 104 [2023-11-19 05:15:02,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:15:02,063 INFO L225 Difference]: With dead ends: 297 [2023-11-19 05:15:02,063 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:15:02,064 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2023-11-19 05:15:02,065 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 129 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 1644 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:15:02,065 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 1644 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 05:15:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:15:02,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:15:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:15:02,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:15:02,066 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2023-11-19 05:15:02,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:15:02,067 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:15:02,067 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 8.285714285714286) internal successors, (58), 8 states have internal predecessors, (58), 4 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2023-11-19 05:15:02,067 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:15:02,067 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:15:02,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-19 05:15:02,070 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-19 05:15:02,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-19 05:15:02,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-19 05:15:02,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-19 05:15:02,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-19 05:15:02,071 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-19 05:15:02,072 INFO L805 garLoopResultBuilder]: Registering result SAFE for location add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-19 05:15:02,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-11-19 05:15:02,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 05:15:02,289 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 05:15:02,496 INFO L902 garLoopResultBuilder]: At program point L119(line 119) the Hoare annotation is: true [2023-11-19 05:15:02,496 INFO L899 garLoopResultBuilder]: For program point L119-1(line 119) no Hoare annotation was computed. [2023-11-19 05:15:02,496 INFO L899 garLoopResultBuilder]: For program point read_history_int8FINAL(lines 104 123) no Hoare annotation was computed. [2023-11-19 05:15:02,497 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 120) no Hoare annotation was computed. [2023-11-19 05:15:02,497 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 104 123) the Hoare annotation is: true [2023-11-19 05:15:02,497 INFO L899 garLoopResultBuilder]: For program point read_history_int8EXIT(lines 104 123) no Hoare annotation was computed. [2023-11-19 05:15:02,497 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (<= |read_history_bool_#in~history_id| read_history_bool_~history_id) [2023-11-19 05:15:02,497 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2023-11-19 05:15:02,497 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 160) no Hoare annotation was computed. [2023-11-19 05:15:02,498 INFO L899 garLoopResultBuilder]: For program point read_history_boolFINAL(lines 124 163) no Hoare annotation was computed. [2023-11-19 05:15:02,498 INFO L899 garLoopResultBuilder]: For program point L139(lines 139 160) no Hoare annotation was computed. [2023-11-19 05:15:02,498 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 124 163) the Hoare annotation is: true [2023-11-19 05:15:02,498 INFO L899 garLoopResultBuilder]: For program point read_history_boolEXIT(lines 124 163) no Hoare annotation was computed. [2023-11-19 05:15:02,498 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 160) no Hoare annotation was computed. [2023-11-19 05:15:02,498 INFO L899 garLoopResultBuilder]: For program point assertEXIT(lines 534 545) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 534 545) the Hoare annotation is: true [2023-11-19 05:15:02,499 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L899 garLoopResultBuilder]: For program point L217(lines 217 219) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L899 garLoopResultBuilder]: For program point L267(lines 267 301) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L899 garLoopResultBuilder]: For program point L284(lines 284 294) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 476) no Hoare annotation was computed. [2023-11-19 05:15:02,499 INFO L902 garLoopResultBuilder]: At program point L268(line 268) the Hoare annotation is: true [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L268-1(line 268) no Hoare annotation was computed. [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 175) no Hoare annotation was computed. [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 291) no Hoare annotation was computed. [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 300) no Hoare annotation was computed. [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L451(lines 451 476) no Hoare annotation was computed. [2023-11-19 05:15:02,500 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 288) no Hoare annotation was computed. [2023-11-19 05:15:02,501 INFO L902 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: true [2023-11-19 05:15:02,501 INFO L899 garLoopResultBuilder]: For program point L220-1(line 220) no Hoare annotation was computed. [2023-11-19 05:15:02,501 INFO L899 garLoopResultBuilder]: For program point L303(line 303) no Hoare annotation was computed. [2023-11-19 05:15:02,501 INFO L899 garLoopResultBuilder]: For program point L221(lines 221 223) no Hoare annotation was computed. [2023-11-19 05:15:02,501 INFO L899 garLoopResultBuilder]: For program point L469(lines 469 476) no Hoare annotation was computed. [2023-11-19 05:15:02,501 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 322) no Hoare annotation was computed. [2023-11-19 05:15:02,502 INFO L895 garLoopResultBuilder]: At program point L271(line 271) the Hoare annotation is: (= |ULTIMATE.start_check_~temp_count~0#1| 0) [2023-11-19 05:15:02,502 INFO L902 garLoopResultBuilder]: At program point L304-1(lines 304 322) the Hoare annotation is: true [2023-11-19 05:15:02,502 INFO L899 garLoopResultBuilder]: For program point L271-1(line 271) no Hoare annotation was computed. [2023-11-19 05:15:02,502 INFO L902 garLoopResultBuilder]: At program point L305(line 305) the Hoare annotation is: true [2023-11-19 05:15:02,502 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 274) no Hoare annotation was computed. [2023-11-19 05:15:02,502 INFO L899 garLoopResultBuilder]: For program point L305-1(line 305) no Hoare annotation was computed. [2023-11-19 05:15:02,503 INFO L895 garLoopResultBuilder]: At program point L272-2(lines 272 274) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_check_~temp_count~0#1|) (<= |ULTIMATE.start_check_~temp_count~0#1| 1)) [2023-11-19 05:15:02,503 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 05:15:02,503 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 321) no Hoare annotation was computed. [2023-11-19 05:15:02,503 INFO L899 garLoopResultBuilder]: For program point L273(line 273) no Hoare annotation was computed. [2023-11-19 05:15:02,503 INFO L899 garLoopResultBuilder]: For program point L273-1(line 273) no Hoare annotation was computed. [2023-11-19 05:15:02,503 INFO L902 garLoopResultBuilder]: At program point L174(line 174) the Hoare annotation is: true [2023-11-19 05:15:02,503 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 164 178) no Hoare annotation was computed. [2023-11-19 05:15:02,504 INFO L902 garLoopResultBuilder]: At program point L422-2(lines 416 426) the Hoare annotation is: true [2023-11-19 05:15:02,504 INFO L899 garLoopResultBuilder]: For program point L323(line 323) no Hoare annotation was computed. [2023-11-19 05:15:02,504 INFO L902 garLoopResultBuilder]: At program point L224(line 224) the Hoare annotation is: true [2023-11-19 05:15:02,504 INFO L899 garLoopResultBuilder]: For program point L224-1(line 224) no Hoare annotation was computed. [2023-11-19 05:15:02,504 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 277) no Hoare annotation was computed. [2023-11-19 05:15:02,504 INFO L899 garLoopResultBuilder]: For program point L472(lines 472 476) no Hoare annotation was computed. [2023-11-19 05:15:02,505 INFO L902 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: true [2023-11-19 05:15:02,505 INFO L899 garLoopResultBuilder]: For program point L307-1(line 307) no Hoare annotation was computed. [2023-11-19 05:15:02,505 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 335) no Hoare annotation was computed. [2023-11-19 05:15:02,505 INFO L899 garLoopResultBuilder]: For program point L324-1(lines 324 335) no Hoare annotation was computed. [2023-11-19 05:15:02,505 INFO L902 garLoopResultBuilder]: At program point L258-2(lines 252 262) the Hoare annotation is: true [2023-11-19 05:15:02,505 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 320) no Hoare annotation was computed. [2023-11-19 05:15:02,505 INFO L899 garLoopResultBuilder]: For program point L275(line 275) no Hoare annotation was computed. [2023-11-19 05:15:02,506 INFO L902 garLoopResultBuilder]: At program point L391-2(lines 385 395) the Hoare annotation is: true [2023-11-19 05:15:02,506 INFO L902 garLoopResultBuilder]: At program point L325(line 325) the Hoare annotation is: true [2023-11-19 05:15:02,506 INFO L899 garLoopResultBuilder]: For program point L325-1(line 325) no Hoare annotation was computed. [2023-11-19 05:15:02,506 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2023-11-19 05:15:02,506 INFO L902 garLoopResultBuilder]: At program point L507(line 507) the Hoare annotation is: true [2023-11-19 05:15:02,506 INFO L899 garLoopResultBuilder]: For program point L507-1(line 507) no Hoare annotation was computed. [2023-11-19 05:15:02,507 INFO L902 garLoopResultBuilder]: At program point L309(line 309) the Hoare annotation is: true [2023-11-19 05:15:02,507 INFO L899 garLoopResultBuilder]: For program point L276(lines 276 278) no Hoare annotation was computed. [2023-11-19 05:15:02,507 INFO L899 garLoopResultBuilder]: For program point L309-1(line 309) no Hoare annotation was computed. [2023-11-19 05:15:02,507 INFO L895 garLoopResultBuilder]: At program point L276-2(lines 276 278) the Hoare annotation is: (and (<= |ULTIMATE.start_check_~temp_count~0#1| 2) (<= 0 (+ |ULTIMATE.start_check_~temp_count~0#1| 2147483648))) [2023-11-19 05:15:02,507 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 476) no Hoare annotation was computed. [2023-11-19 05:15:02,507 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 334) no Hoare annotation was computed. [2023-11-19 05:15:02,507 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 273) no Hoare annotation was computed. [2023-11-19 05:15:02,508 INFO L902 garLoopResultBuilder]: At program point L475(line 475) the Hoare annotation is: true [2023-11-19 05:15:02,508 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 444 476) no Hoare annotation was computed. [2023-11-19 05:15:02,508 INFO L902 garLoopResultBuilder]: At program point L409(line 409) the Hoare annotation is: true [2023-11-19 05:15:02,508 INFO L899 garLoopResultBuilder]: For program point L409-1(lines 407 430) no Hoare annotation was computed. [2023-11-19 05:15:02,508 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 317) no Hoare annotation was computed. [2023-11-19 05:15:02,508 INFO L899 garLoopResultBuilder]: For program point L277(line 277) no Hoare annotation was computed. [2023-11-19 05:15:02,508 INFO L899 garLoopResultBuilder]: For program point L277-1(line 277) no Hoare annotation was computed. [2023-11-19 05:15:02,509 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 05:15:02,509 INFO L902 garLoopResultBuilder]: At program point L327(line 327) the Hoare annotation is: true [2023-11-19 05:15:02,509 INFO L902 garLoopResultBuilder]: At program point L360-2(lines 354 364) the Hoare annotation is: true [2023-11-19 05:15:02,509 INFO L899 garLoopResultBuilder]: For program point L327-1(line 327) no Hoare annotation was computed. [2023-11-19 05:15:02,509 INFO L902 garLoopResultBuilder]: At program point L311(line 311) the Hoare annotation is: true [2023-11-19 05:15:02,509 INFO L899 garLoopResultBuilder]: For program point L311-1(line 311) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point L427(line 427) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 333) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point gate1_each_pals_period_returnLabel#1(lines 339 369) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 476) no Hoare annotation was computed. [2023-11-19 05:15:02,510 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2023-11-19 05:15:02,510 INFO L899 garLoopResultBuilder]: For program point L378-1(lines 376 399) no Hoare annotation was computed. [2023-11-19 05:15:02,511 INFO L899 garLoopResultBuilder]: For program point L312(lines 312 314) no Hoare annotation was computed. [2023-11-19 05:15:02,511 INFO L899 garLoopResultBuilder]: For program point L279(line 279) no Hoare annotation was computed. [2023-11-19 05:15:02,511 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 215) no Hoare annotation was computed. [2023-11-19 05:15:02,511 INFO L902 garLoopResultBuilder]: At program point L329(line 329) the Hoare annotation is: true [2023-11-19 05:15:02,511 INFO L899 garLoopResultBuilder]: For program point L329-1(line 329) no Hoare annotation was computed. [2023-11-19 05:15:02,511 INFO L902 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: true [2023-11-19 05:15:02,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2023-11-19 05:15:02,512 INFO L899 garLoopResultBuilder]: For program point L280(lines 280 282) no Hoare annotation was computed. [2023-11-19 05:15:02,512 INFO L899 garLoopResultBuilder]: For program point L280-2(lines 269 300) no Hoare annotation was computed. [2023-11-19 05:15:02,512 INFO L902 garLoopResultBuilder]: At program point L528(line 528) the Hoare annotation is: true [2023-11-19 05:15:02,512 INFO L902 garLoopResultBuilder]: At program point L528-1(lines 515 530) the Hoare annotation is: true [2023-11-19 05:15:02,512 INFO L899 garLoopResultBuilder]: For program point L396(line 396) no Hoare annotation was computed. [2023-11-19 05:15:02,512 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 332) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point L264(line 264) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 281) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L902 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: true [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point L347-1(lines 345 368) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point L281(line 281) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point L281-1(line 281) no Hoare annotation was computed. [2023-11-19 05:15:02,513 INFO L899 garLoopResultBuilder]: For program point check_returnLabel#1(lines 231 338) no Hoare annotation was computed. [2023-11-19 05:15:02,514 INFO L899 garLoopResultBuilder]: For program point L265(lines 265 302) no Hoare annotation was computed. [2023-11-19 05:15:02,514 INFO L902 garLoopResultBuilder]: At program point L265-1(lines 265 302) the Hoare annotation is: true [2023-11-19 05:15:02,514 INFO L899 garLoopResultBuilder]: For program point $Ultimate##114(lines 297 299) no Hoare annotation was computed. [2023-11-19 05:15:02,514 INFO L899 garLoopResultBuilder]: For program point gate3_each_pals_period_returnLabel#1(lines 401 431) no Hoare annotation was computed. [2023-11-19 05:15:02,514 INFO L902 garLoopResultBuilder]: At program point L216(line 216) the Hoare annotation is: true [2023-11-19 05:15:02,514 INFO L899 garLoopResultBuilder]: For program point L216-1(line 216) no Hoare annotation was computed. [2023-11-19 05:15:02,514 INFO L899 garLoopResultBuilder]: For program point init_returnLabel#1(lines 204 230) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point gate2_each_pals_period_returnLabel#1(lines 370 400) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L365(line 365) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L902 garLoopResultBuilder]: At program point L266(line 266) the Hoare annotation is: true [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L266-1(line 266) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 98) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 75 98) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L89(lines 89 91) no Hoare annotation was computed. [2023-11-19 05:15:02,515 INFO L899 garLoopResultBuilder]: For program point L81(lines 81 98) no Hoare annotation was computed. [2023-11-19 05:15:02,516 INFO L899 garLoopResultBuilder]: For program point L77(lines 77 79) no Hoare annotation was computed. [2023-11-19 05:15:02,516 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2023-11-19 05:15:02,516 INFO L895 garLoopResultBuilder]: At program point L94(line 94) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2023-11-19 05:15:02,516 INFO L899 garLoopResultBuilder]: For program point L94-1(line 94) no Hoare annotation was computed. [2023-11-19 05:15:02,516 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2023-11-19 05:15:02,517 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2023-11-19 05:15:02,517 INFO L895 garLoopResultBuilder]: At program point L74-2(lines 74 100) the Hoare annotation is: (and (or (< 0 add_history_type_~var~0) (= add_history_type_~var~0 0)) (or (not (= |add_history_type_#in~history_id| 0)) (= add_history_type_~history_id 0))) [2023-11-19 05:15:02,517 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2023-11-19 05:15:02,517 INFO L899 garLoopResultBuilder]: For program point L99-1(line 99) no Hoare annotation was computed. [2023-11-19 05:15:02,517 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 97) no Hoare annotation was computed. [2023-11-19 05:15:02,517 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 98) no Hoare annotation was computed. [2023-11-19 05:15:02,518 INFO L899 garLoopResultBuilder]: For program point L83(lines 83 85) no Hoare annotation was computed. [2023-11-19 05:15:02,518 INFO L899 garLoopResultBuilder]: For program point add_history_typeEXIT(lines 60 103) no Hoare annotation was computed. [2023-11-19 05:15:02,518 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 98) no Hoare annotation was computed. [2023-11-19 05:15:02,518 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 60 103) the Hoare annotation is: true [2023-11-19 05:15:02,518 INFO L895 garLoopResultBuilder]: At program point L88(line 88) the Hoare annotation is: (and (not (= |add_history_type_#in~history_id| 0)) (or (= add_history_type_~var~0 0) (and (<= add_history_type_~var~0 2) (<= 1 add_history_type_~var~0)))) [2023-11-19 05:15:02,518 INFO L899 garLoopResultBuilder]: For program point L88-1(line 88) no Hoare annotation was computed. [2023-11-19 05:15:02,519 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= add_history_type_~history_id 0))) (or (and (= add_history_type_~var~0 0) .cse0) (and (<= add_history_type_~var~0 2) .cse0 (<= 1 add_history_type_~var~0)))) [2023-11-19 05:15:02,519 INFO L899 garLoopResultBuilder]: For program point L76-1(line 76) no Hoare annotation was computed. [2023-11-19 05:15:02,519 INFO L899 garLoopResultBuilder]: For program point add_history_typeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 99) no Hoare annotation was computed. [2023-11-19 05:15:02,519 INFO L899 garLoopResultBuilder]: For program point add_history_typeFINAL(lines 60 103) no Hoare annotation was computed. [2023-11-19 05:15:02,519 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 36 38) the Hoare annotation is: true [2023-11-19 05:15:02,519 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 36 38) no Hoare annotation was computed. [2023-11-19 05:15:02,519 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 200) no Hoare annotation was computed. [2023-11-19 05:15:02,520 INFO L899 garLoopResultBuilder]: For program point write_history_boolEXIT(lines 179 203) no Hoare annotation was computed. [2023-11-19 05:15:02,520 INFO L899 garLoopResultBuilder]: For program point L184(lines 184 200) no Hoare annotation was computed. [2023-11-19 05:15:02,520 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 179 203) the Hoare annotation is: true [2023-11-19 05:15:02,520 INFO L895 garLoopResultBuilder]: At program point L199(line 199) the Hoare annotation is: (<= |write_history_bool_#in~history_id| write_history_bool_~history_id) [2023-11-19 05:15:02,520 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 179 203) no Hoare annotation was computed. [2023-11-19 05:15:02,520 INFO L899 garLoopResultBuilder]: For program point L194(lines 194 200) no Hoare annotation was computed. [2023-11-19 05:15:02,524 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:15:02,526 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:15:02,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:15:02 BoogieIcfgContainer [2023-11-19 05:15:02,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:15:02,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:15:02,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:15:02,544 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:15:02,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:14:46" (3/4) ... [2023-11-19 05:15:02,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 05:15:02,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_int8 [2023-11-19 05:15:02,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_history_bool [2023-11-19 05:15:02,550 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assert [2023-11-19 05:15:02,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure add_history_type [2023-11-19 05:15:02,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 05:15:02,551 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_history_bool [2023-11-19 05:15:02,575 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2023-11-19 05:15:02,577 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 05:15:02,579 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 05:15:02,580 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 05:15:02,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < var) || (var == 0)) && (!((\old(history_id) == 0)) || (history_id == 0))) [2023-11-19 05:15:02,704 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((0 < var) || (var == 0)) && (!((\old(history_id) == 0)) || (history_id == 0))) [2023-11-19 05:15:02,762 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:15:02,762 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 05:15:02,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:15:02,765 INFO L158 Benchmark]: Toolchain (without parser) took 17744.36ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 138.8MB in the beginning and 117.4MB in the end (delta: 21.4MB). Peak memory consumption was 57.0MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,765 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:15:02,765 INFO L158 Benchmark]: CACSL2BoogieTranslator took 421.32ms. Allocated memory is still 169.9MB. Free memory was 138.6MB in the beginning and 126.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,771 INFO L158 Benchmark]: Boogie Procedure Inliner took 70.26ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 123.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,771 INFO L158 Benchmark]: Boogie Preprocessor took 68.68ms. Allocated memory is still 169.9MB. Free memory was 123.2MB in the beginning and 120.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,772 INFO L158 Benchmark]: RCFGBuilder took 1230.82ms. Allocated memory is still 169.9MB. Free memory was 120.4MB in the beginning and 119.8MB in the end (delta: 565.6kB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,772 INFO L158 Benchmark]: TraceAbstraction took 15726.36ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 119.8MB in the beginning and 128.9MB in the end (delta: -9.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,775 INFO L158 Benchmark]: Witness Printer took 219.88ms. Allocated memory is still 205.5MB. Free memory was 128.9MB in the beginning and 117.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:15:02,778 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 130.0MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 421.32ms. Allocated memory is still 169.9MB. Free memory was 138.6MB in the beginning and 126.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 70.26ms. Allocated memory is still 169.9MB. Free memory was 126.0MB in the beginning and 123.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.68ms. Allocated memory is still 169.9MB. Free memory was 123.2MB in the beginning and 120.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1230.82ms. Allocated memory is still 169.9MB. Free memory was 120.4MB in the beginning and 119.8MB in the end (delta: 565.6kB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15726.36ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 119.8MB in the beginning and 128.9MB in the end (delta: -9.1MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Witness Printer took 219.88ms. Allocated memory is still 205.5MB. Free memory was 128.9MB in the beginning and 117.4MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 273]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 277]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 281]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 99]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 159 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 15.6s, OverallIterations: 21, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1025 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 889 mSDsluCounter, 17433 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12406 mSDsCounter, 91 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2062 IncrementalHoareTripleChecker+Invalid, 2153 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 91 mSolverCounterUnsat, 5027 mSDtfsCounter, 2062 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1731 GetRequests, 1585 SyntacticMatches, 0 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=17, InterpolantAutomatonStates: 117, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 21 MinimizatonAttempts, 419 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 698 PreInvPairs, 774 NumberOfFragments, 142 HoareAnnotationTreeSize, 698 FomulaSimplifications, 228 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 45 FomulaSimplificationsInter, 149 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 3263 NumberOfCodeBlocks, 3263 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 3224 ConstructedInterpolants, 0 QuantifiedInterpolants, 3729 SizeOfPredicates, 24 NumberOfNonLiveVariables, 8182 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 39 InterpolantComputations, 21 PerfectInterpolantSequences, 1562/1586 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: (((0 < var) || (var == 0)) && (!((\old(history_id) == 0)) || (history_id == 0))) - InvariantResult [Line: 515]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 05:15:02,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f04b4d-e404-49d8-9593-4e272fa6baef/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE