./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje --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 07777b75ead5ca82f9efe60a3e787c338f0f6d537d953087b187c05d2a960d83 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:16:42,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:16:42,911 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:16:42,915 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:16:42,916 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:16:42,953 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:16:42,954 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:16:42,954 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:16:42,955 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:16:42,955 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:16:42,957 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:16:42,957 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:16:42,957 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:16:42,959 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:16:42,960 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:16:42,960 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:16:42,960 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:16:42,961 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:16:42,961 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:16:42,965 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:16:42,965 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:16:42,966 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:16:42,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:16:42,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:16:42,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:16:42,967 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:16:42,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:16:42,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:16:42,968 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:16:42,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:16:42,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:16:42,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:16:42,970 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:16:42,970 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:16:42,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:16:42,971 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:16:42,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:16:42,972 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:16:42,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:16:42,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:16:42,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:42,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:16:42,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:16:42,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:16:42,975 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:16:42,975 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:16:42,975 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:16:42,976 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:16:42,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:16:42,976 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_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07777b75ead5ca82f9efe60a3e787c338f0f6d537d953087b187c05d2a960d83 [2024-11-09 05:16:43,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:16:43,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:16:43,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:16:43,358 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:16:43,359 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:16:43,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c Unable to find full path for "g++" [2024-11-09 05:16:45,305 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:16:45,505 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:16:45,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound50.c [2024-11-09 05:16:45,514 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/data/7878b38d1/9b1e624b1aed420783c1a2732fa03aae/FLAG6b8e618a9 [2024-11-09 05:16:45,895 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/data/7878b38d1/9b1e624b1aed420783c1a2732fa03aae [2024-11-09 05:16:45,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:16:45,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:16:45,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:45,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:16:45,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:16:45,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:45" (1/1) ... [2024-11-09 05:16:45,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62116422 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:45, skipping insertion in model container [2024-11-09 05:16:45,911 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:16:45" (1/1) ... [2024-11-09 05:16:45,948 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:16:46,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:46,163 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:16:46,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:16:46,203 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:16:46,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46 WrapperNode [2024-11-09 05:16:46,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:16:46,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:46,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:16:46,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:16:46,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,219 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,243 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 109 [2024-11-09 05:16:46,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:16:46,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:16:46,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:16:46,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:16:46,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,261 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,265 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,270 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:16:46,271 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:16:46,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:16:46,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:16:46,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (1/1) ... [2024-11-09 05:16:46,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:16:46,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:46,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:16:46,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:16:46,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:16:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:16:46,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:16:46,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:16:46,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:16:46,352 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:16:46,449 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:16:46,451 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:16:47,197 INFO L? ?]: Removed 94 outVars from TransFormulas that were not future-live. [2024-11-09 05:16:47,197 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:16:47,240 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:16:47,241 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:16:47,241 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:47 BoogieIcfgContainer [2024-11-09 05:16:47,241 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:16:47,243 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:16:47,243 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:16:47,246 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:16:47,247 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:16:45" (1/3) ... [2024-11-09 05:16:47,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692314ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:47, skipping insertion in model container [2024-11-09 05:16:47,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:16:46" (2/3) ... [2024-11-09 05:16:47,248 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692314ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:16:47, skipping insertion in model container [2024-11-09 05:16:47,248 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:16:47" (3/3) ... [2024-11-09 05:16:47,250 INFO L112 eAbstractionObserver]: Analyzing ICFG prod4br-ll_unwindbound50.c [2024-11-09 05:16:47,268 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:16:47,268 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2024-11-09 05:16:47,326 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:16:47,334 INFO L333 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, 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;@116d3849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:16:47,334 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2024-11-09 05:16:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:16:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:16:47,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:47,345 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:16:47,346 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:47,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:47,351 INFO L85 PathProgramCache]: Analyzing trace with hash 190340, now seen corresponding path program 1 times [2024-11-09 05:16:47,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:47,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778286572] [2024-11-09 05:16:47,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:47,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:47,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:47,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:47,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778286572] [2024-11-09 05:16:47,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778286572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:47,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:47,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:47,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812589747] [2024-11-09 05:16:47,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:47,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:16:47,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:47,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:16:47,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:16:47,547 INFO L87 Difference]: Start difference. First operand has 102 states, 53 states have (on average 1.9433962264150944) internal successors, (103), 97 states have internal predecessors, (103), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-09 05:16:47,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:47,583 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2024-11-09 05:16:47,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:16:47,585 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 05:16:47,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:47,593 INFO L225 Difference]: With dead ends: 116 [2024-11-09 05:16:47,593 INFO L226 Difference]: Without dead ends: 99 [2024-11-09 05:16:47,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:16:47,600 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:47,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:47,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-09 05:16:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-09 05:16:47,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 52 states have (on average 1.9230769230769231) internal successors, (100), 95 states have internal predecessors, (100), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:16:47,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 104 transitions. [2024-11-09 05:16:47,646 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 104 transitions. Word has length 3 [2024-11-09 05:16:47,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:47,647 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 104 transitions. [2024-11-09 05:16:47,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2024-11-09 05:16:47,647 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 104 transitions. [2024-11-09 05:16:47,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:16:47,648 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:47,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:16:47,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:16:47,648 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:47,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:47,649 INFO L85 PathProgramCache]: Analyzing trace with hash 186851, now seen corresponding path program 1 times [2024-11-09 05:16:47,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:47,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382329873] [2024-11-09 05:16:47,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:47,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:47,721 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:47,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382329873] [2024-11-09 05:16:47,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382329873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:47,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:47,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784816052] [2024-11-09 05:16:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:47,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:47,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:47,725 INFO L87 Difference]: Start difference. First operand 99 states and 104 transitions. Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-09 05:16:47,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:47,780 INFO L93 Difference]: Finished difference Result 99 states and 104 transitions. [2024-11-09 05:16:47,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:47,782 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 05:16:47,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:47,784 INFO L225 Difference]: With dead ends: 99 [2024-11-09 05:16:47,784 INFO L226 Difference]: Without dead ends: 98 [2024-11-09 05:16:47,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:16:47,785 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 103 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:47,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 190 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:47,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-09 05:16:47,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-09 05:16:47,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 94 states have internal predecessors, (99), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:16:47,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 103 transitions. [2024-11-09 05:16:47,797 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 103 transitions. Word has length 3 [2024-11-09 05:16:47,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:47,797 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 103 transitions. [2024-11-09 05:16:47,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2024-11-09 05:16:47,798 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 103 transitions. [2024-11-09 05:16:47,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:16:47,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:47,798 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:16:47,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:16:47,799 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:47,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:47,800 INFO L85 PathProgramCache]: Analyzing trace with hash 5792428, now seen corresponding path program 1 times [2024-11-09 05:16:47,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:47,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447790614] [2024-11-09 05:16:47,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:47,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:47,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:47,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:47,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447790614] [2024-11-09 05:16:47,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447790614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:47,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:47,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:47,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035586175] [2024-11-09 05:16:47,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:47,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:47,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:47,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:47,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:47,854 INFO L87 Difference]: Start difference. First operand 98 states and 103 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 05:16:47,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:47,901 INFO L93 Difference]: Finished difference Result 114 states and 119 transitions. [2024-11-09 05:16:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:16:47,905 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:16:47,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:47,906 INFO L225 Difference]: With dead ends: 114 [2024-11-09 05:16:47,907 INFO L226 Difference]: Without dead ends: 102 [2024-11-09 05:16:47,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:16:47,908 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 3 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:47,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 290 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-09 05:16:47,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2024-11-09 05:16:47,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 56 states have (on average 1.8392857142857142) internal successors, (103), 98 states have internal predecessors, (103), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:16:47,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 107 transitions. [2024-11-09 05:16:47,932 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 107 transitions. Word has length 4 [2024-11-09 05:16:47,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:47,933 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 107 transitions. [2024-11-09 05:16:47,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) [2024-11-09 05:16:47,933 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 107 transitions. [2024-11-09 05:16:47,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 05:16:47,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:47,934 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 05:16:47,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:16:47,935 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:47,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:47,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1271557678, now seen corresponding path program 1 times [2024-11-09 05:16:47,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:47,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316780819] [2024-11-09 05:16:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:47,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:47,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:47,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1792408305] [2024-11-09 05:16:47,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:47,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:47,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:47,970 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:47,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:16:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:48,023 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:16:48,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:48,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:48,165 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:48,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:48,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316780819] [2024-11-09 05:16:48,166 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:48,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792408305] [2024-11-09 05:16:48,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792408305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:48,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:48,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:48,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481438601] [2024-11-09 05:16:48,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:48,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:48,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:48,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:48,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:48,175 INFO L87 Difference]: Start difference. First operand 102 states and 107 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-09 05:16:48,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:48,701 INFO L93 Difference]: Finished difference Result 143 states and 162 transitions. [2024-11-09 05:16:48,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:48,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 05:16:48,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:48,702 INFO L225 Difference]: With dead ends: 143 [2024-11-09 05:16:48,702 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 05:16:48,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:48,704 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 28 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:48,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 89 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:16:48,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 05:16:48,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 127. [2024-11-09 05:16:48,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 121 states have internal predecessors, (140), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:16:48,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 148 transitions. [2024-11-09 05:16:48,715 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 148 transitions. Word has length 6 [2024-11-09 05:16:48,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:48,715 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 148 transitions. [2024-11-09 05:16:48,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2024-11-09 05:16:48,715 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 148 transitions. [2024-11-09 05:16:48,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 05:16:48,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:48,716 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:48,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:16:48,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:48,920 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:48,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:48,921 INFO L85 PathProgramCache]: Analyzing trace with hash 763582410, now seen corresponding path program 1 times [2024-11-09 05:16:48,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:48,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099021271] [2024-11-09 05:16:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:48,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:48,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1663690028] [2024-11-09 05:16:48,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:48,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:48,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:48,935 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:48,940 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:16:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:48,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:16:48,987 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:49,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:49,070 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:49,070 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099021271] [2024-11-09 05:16:49,070 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:49,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663690028] [2024-11-09 05:16:49,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1663690028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:49,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:49,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:49,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55452745] [2024-11-09 05:16:49,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:49,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:49,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:49,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:49,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:49,077 INFO L87 Difference]: Start difference. First operand 127 states and 148 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:49,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:49,389 INFO L93 Difference]: Finished difference Result 181 states and 221 transitions. [2024-11-09 05:16:49,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:49,390 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 05:16:49,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:49,391 INFO L225 Difference]: With dead ends: 181 [2024-11-09 05:16:49,391 INFO L226 Difference]: Without dead ends: 167 [2024-11-09 05:16:49,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:49,392 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 34 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:49,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 85 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:16:49,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-09 05:16:49,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2024-11-09 05:16:49,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7407407407407407) internal successors, (188), 150 states have internal predecessors, (188), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:16:49,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2024-11-09 05:16:49,422 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 198 transitions. Word has length 7 [2024-11-09 05:16:49,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:49,422 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 198 transitions. [2024-11-09 05:16:49,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:49,422 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 198 transitions. [2024-11-09 05:16:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:16:49,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:49,423 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:49,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:16:49,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:49,627 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:49,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:49,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2098749008, now seen corresponding path program 1 times [2024-11-09 05:16:49,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:49,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533541918] [2024-11-09 05:16:49,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:49,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:49,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:49,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2088162198] [2024-11-09 05:16:49,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:49,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:49,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:49,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:49,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:16:49,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:49,701 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:16:49,702 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:49,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:49,862 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:49,862 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:49,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533541918] [2024-11-09 05:16:49,863 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:49,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088162198] [2024-11-09 05:16:49,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088162198] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:49,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:49,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:49,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070556382] [2024-11-09 05:16:49,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:49,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:49,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:49,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:49,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:49,868 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-09 05:16:50,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:50,063 INFO L93 Difference]: Finished difference Result 169 states and 205 transitions. [2024-11-09 05:16:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:50,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:16:50,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:50,065 INFO L225 Difference]: With dead ends: 169 [2024-11-09 05:16:50,065 INFO L226 Difference]: Without dead ends: 168 [2024-11-09 05:16:50,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:50,067 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 24 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:50,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 92 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:16:50,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-11-09 05:16:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 157. [2024-11-09 05:16:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.7314814814814814) internal successors, (187), 150 states have internal predecessors, (187), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:16:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 197 transitions. [2024-11-09 05:16:50,077 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 197 transitions. Word has length 8 [2024-11-09 05:16:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:50,078 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 197 transitions. [2024-11-09 05:16:50,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2024-11-09 05:16:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 197 transitions. [2024-11-09 05:16:50,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:16:50,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:50,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:50,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:50,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:50,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:50,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:50,284 INFO L85 PathProgramCache]: Analyzing trace with hash -636709748, now seen corresponding path program 1 times [2024-11-09 05:16:50,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:50,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392895373] [2024-11-09 05:16:50,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:50,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:50,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [282785037] [2024-11-09 05:16:50,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:50,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:50,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:50,301 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:50,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:16:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:50,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:16:50,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:50,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:50,441 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:50,441 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:50,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392895373] [2024-11-09 05:16:50,442 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:50,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282785037] [2024-11-09 05:16:50,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282785037] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:50,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:50,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:50,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512114119] [2024-11-09 05:16:50,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:50,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:50,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:50,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:50,444 INFO L87 Difference]: Start difference. First operand 157 states and 197 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:50,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:50,931 INFO L93 Difference]: Finished difference Result 165 states and 197 transitions. [2024-11-09 05:16:50,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:50,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 05:16:50,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:50,932 INFO L225 Difference]: With dead ends: 165 [2024-11-09 05:16:50,933 INFO L226 Difference]: Without dead ends: 162 [2024-11-09 05:16:50,933 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:50,934 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 31 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:50,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 86 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:16:50,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-09 05:16:50,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 157. [2024-11-09 05:16:50,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 150 states have internal predecessors, (183), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:16:50,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 193 transitions. [2024-11-09 05:16:50,964 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 193 transitions. Word has length 9 [2024-11-09 05:16:50,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:50,964 INFO L471 AbstractCegarLoop]: Abstraction has 157 states and 193 transitions. [2024-11-09 05:16:50,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:50,965 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 193 transitions. [2024-11-09 05:16:50,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-09 05:16:50,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:50,965 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:50,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:51,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:51,169 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:51,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1736834354, now seen corresponding path program 1 times [2024-11-09 05:16:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240900178] [2024-11-09 05:16:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:51,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:51,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240900178] [2024-11-09 05:16:51,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240900178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:51,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:51,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052644918] [2024-11-09 05:16:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:51,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:51,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:51,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:51,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:51,250 INFO L87 Difference]: Start difference. First operand 157 states and 193 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:53,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:53,011 INFO L93 Difference]: Finished difference Result 265 states and 318 transitions. [2024-11-09 05:16:53,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:53,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-09 05:16:53,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:53,013 INFO L225 Difference]: With dead ends: 265 [2024-11-09 05:16:53,013 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 05:16:53,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:53,014 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 87 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:53,014 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 170 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:16:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 05:16:53,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-09 05:16:53,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 173 states have internal predecessors, (222), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:16:53,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 234 transitions. [2024-11-09 05:16:53,029 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 234 transitions. Word has length 10 [2024-11-09 05:16:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:53,030 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 234 transitions. [2024-11-09 05:16:53,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:53,030 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 234 transitions. [2024-11-09 05:16:53,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:16:53,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:53,031 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:53,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:16:53,031 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:53,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:53,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1992709810, now seen corresponding path program 1 times [2024-11-09 05:16:53,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:53,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965276740] [2024-11-09 05:16:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:53,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:53,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:53,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:53,317 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:53,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965276740] [2024-11-09 05:16:53,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965276740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:53,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:53,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:53,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175457985] [2024-11-09 05:16:53,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:53,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:53,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:53,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:53,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:53,319 INFO L87 Difference]: Start difference. First operand 181 states and 234 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:55,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:55,923 INFO L93 Difference]: Finished difference Result 265 states and 316 transitions. [2024-11-09 05:16:55,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:55,924 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-09 05:16:55,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:55,925 INFO L225 Difference]: With dead ends: 265 [2024-11-09 05:16:55,925 INFO L226 Difference]: Without dead ends: 264 [2024-11-09 05:16:55,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:55,926 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 87 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:55,926 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 172 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:16:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-11-09 05:16:55,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 181. [2024-11-09 05:16:55,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 131 states have (on average 1.6793893129770991) internal successors, (220), 173 states have internal predecessors, (220), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:16:55,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 232 transitions. [2024-11-09 05:16:55,937 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 232 transitions. Word has length 11 [2024-11-09 05:16:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:55,938 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 232 transitions. [2024-11-09 05:16:55,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:16:55,938 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 232 transitions. [2024-11-09 05:16:55,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:16:55,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:55,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:55,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:16:55,939 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:55,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:55,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1644461900, now seen corresponding path program 1 times [2024-11-09 05:16:55,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:55,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530601054] [2024-11-09 05:16:55,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:55,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:55,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1306148380] [2024-11-09 05:16:55,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:55,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:55,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:55,954 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:55,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:16:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:55,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:16:55,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:56,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,094 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:56,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530601054] [2024-11-09 05:16:56,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:56,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306148380] [2024-11-09 05:16:56,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306148380] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:56,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:56,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:56,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272952231] [2024-11-09 05:16:56,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:56,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:56,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:56,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:56,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:56,097 INFO L87 Difference]: Start difference. First operand 181 states and 232 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-09 05:16:56,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:56,119 INFO L93 Difference]: Finished difference Result 181 states and 232 transitions. [2024-11-09 05:16:56,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:56,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 05:16:56,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:56,121 INFO L225 Difference]: With dead ends: 181 [2024-11-09 05:16:56,121 INFO L226 Difference]: Without dead ends: 179 [2024-11-09 05:16:56,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:56,122 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 83 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:56,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 95 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-09 05:16:56,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2024-11-09 05:16:56,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 131 states have (on average 1.6259541984732824) internal successors, (213), 171 states have internal predecessors, (213), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:16:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 225 transitions. [2024-11-09 05:16:56,133 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 225 transitions. Word has length 12 [2024-11-09 05:16:56,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:56,133 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 225 transitions. [2024-11-09 05:16:56,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-11-09 05:16:56,134 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 225 transitions. [2024-11-09 05:16:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:16:56,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:56,134 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:56,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:56,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:16:56,339 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:56,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:56,340 INFO L85 PathProgramCache]: Analyzing trace with hash 561288720, now seen corresponding path program 1 times [2024-11-09 05:16:56,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:56,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864626874] [2024-11-09 05:16:56,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:56,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272237786] [2024-11-09 05:16:56,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:56,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:56,353 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:56,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:16:56,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:56,403 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:16:56,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:56,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,499 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:56,499 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:56,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864626874] [2024-11-09 05:16:56,499 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:56,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272237786] [2024-11-09 05:16:56,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272237786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:56,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:56,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:16:56,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609129065] [2024-11-09 05:16:56,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:56,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:56,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:56,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:56,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:56,501 INFO L87 Difference]: Start difference. First operand 179 states and 225 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-09 05:16:56,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:56,519 INFO L93 Difference]: Finished difference Result 179 states and 225 transitions. [2024-11-09 05:16:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-11-09 05:16:56,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:56,520 INFO L225 Difference]: With dead ends: 179 [2024-11-09 05:16:56,520 INFO L226 Difference]: Without dead ends: 175 [2024-11-09 05:16:56,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:56,521 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 82 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:56,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 95 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:16:56,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-09 05:16:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-09 05:16:56,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 129 states have (on average 1.5813953488372092) internal successors, (204), 167 states have internal predecessors, (204), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 05:16:56,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 216 transitions. [2024-11-09 05:16:56,531 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 216 transitions. Word has length 13 [2024-11-09 05:16:56,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:56,532 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 216 transitions. [2024-11-09 05:16:56,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-09 05:16:56,532 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 216 transitions. [2024-11-09 05:16:56,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-09 05:16:56,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:56,533 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:56,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:16:56,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:56,737 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:56,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:56,737 INFO L85 PathProgramCache]: Analyzing trace with hash -709510710, now seen corresponding path program 1 times [2024-11-09 05:16:56,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:56,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481118530] [2024-11-09 05:16:56,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:56,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1863105708] [2024-11-09 05:16:56,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:56,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:56,765 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:56,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:16:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:56,822 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:16:56,824 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:56,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:56,955 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:56,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:56,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481118530] [2024-11-09 05:16:56,956 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:56,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863105708] [2024-11-09 05:16:56,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863105708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:56,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:56,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:56,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823121420] [2024-11-09 05:16:56,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:56,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:56,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:56,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:56,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:56,959 INFO L87 Difference]: Start difference. First operand 175 states and 216 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:57,350 INFO L93 Difference]: Finished difference Result 230 states and 293 transitions. [2024-11-09 05:16:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-09 05:16:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:57,352 INFO L225 Difference]: With dead ends: 230 [2024-11-09 05:16:57,352 INFO L226 Difference]: Without dead ends: 224 [2024-11-09 05:16:57,353 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:57,353 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 23 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:57,354 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 102 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:16:57,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-09 05:16:57,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 210. [2024-11-09 05:16:57,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 163 states have (on average 1.5828220858895705) internal successors, (258), 201 states have internal predecessors, (258), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:16:57,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 272 transitions. [2024-11-09 05:16:57,365 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 272 transitions. Word has length 23 [2024-11-09 05:16:57,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:57,366 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 272 transitions. [2024-11-09 05:16:57,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 272 transitions. [2024-11-09 05:16:57,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:16:57,366 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:57,367 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:57,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:16:57,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 05:16:57,568 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:57,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash -935118100, now seen corresponding path program 1 times [2024-11-09 05:16:57,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:57,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862885183] [2024-11-09 05:16:57,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:57,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:57,690 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:57,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862885183] [2024-11-09 05:16:57,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862885183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:57,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:57,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:57,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154902414] [2024-11-09 05:16:57,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:57,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:57,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:57,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:57,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:57,693 INFO L87 Difference]: Start difference. First operand 210 states and 272 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:58,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:58,444 INFO L93 Difference]: Finished difference Result 285 states and 348 transitions. [2024-11-09 05:16:58,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:16:58,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-09 05:16:58,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:58,446 INFO L225 Difference]: With dead ends: 285 [2024-11-09 05:16:58,446 INFO L226 Difference]: Without dead ends: 284 [2024-11-09 05:16:58,446 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:58,447 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 109 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:58,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 181 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:16:58,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2024-11-09 05:16:58,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 220. [2024-11-09 05:16:58,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 173 states have (on average 1.5780346820809248) internal successors, (273), 211 states have internal predecessors, (273), 7 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-09 05:16:58,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 287 transitions. [2024-11-09 05:16:58,459 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 287 transitions. Word has length 24 [2024-11-09 05:16:58,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:58,459 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 287 transitions. [2024-11-09 05:16:58,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:58,460 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 287 transitions. [2024-11-09 05:16:58,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-09 05:16:58,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:58,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:58,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 05:16:58,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:58,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:58,461 INFO L85 PathProgramCache]: Analyzing trace with hash -519995411, now seen corresponding path program 1 times [2024-11-09 05:16:58,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:58,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812249379] [2024-11-09 05:16:58,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:58,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:58,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1476262127] [2024-11-09 05:16:58,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:58,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:58,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:58,483 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:58,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:16:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:58,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:16:58,531 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:58,617 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:16:58,617 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812249379] [2024-11-09 05:16:58,617 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:16:58,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476262127] [2024-11-09 05:16:58,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476262127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:58,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:58,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:16:58,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829114156] [2024-11-09 05:16:58,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:58,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:16:58,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:58,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:16:58,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:58,619 INFO L87 Difference]: Start difference. First operand 220 states and 287 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:58,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:58,919 INFO L93 Difference]: Finished difference Result 285 states and 384 transitions. [2024-11-09 05:16:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:16:58,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-11-09 05:16:58,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:58,921 INFO L225 Difference]: With dead ends: 285 [2024-11-09 05:16:58,921 INFO L226 Difference]: Without dead ends: 279 [2024-11-09 05:16:58,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:16:58,922 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 38 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:58,922 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 72 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:16:58,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2024-11-09 05:16:58,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 262. [2024-11-09 05:16:58,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 214 states have (on average 1.6168224299065421) internal successors, (346), 252 states have internal predecessors, (346), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:16:58,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 362 transitions. [2024-11-09 05:16:58,935 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 362 transitions. Word has length 24 [2024-11-09 05:16:58,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:58,936 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 362 transitions. [2024-11-09 05:16:58,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:16:58,936 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 362 transitions. [2024-11-09 05:16:58,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:16:58,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:58,937 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:16:58,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:16:59,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 05:16:59,141 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:16:59,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:59,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1076110078, now seen corresponding path program 1 times [2024-11-09 05:16:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:59,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19535496] [2024-11-09 05:16:59,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:59,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:16:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:16:59,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:16:59,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19535496] [2024-11-09 05:16:59,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19535496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:16:59,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:16:59,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:16:59,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323803636] [2024-11-09 05:16:59,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:16:59,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:16:59,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:16:59,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:16:59,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:16:59,301 INFO L87 Difference]: Start difference. First operand 262 states and 362 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:00,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:00,516 INFO L93 Difference]: Finished difference Result 335 states and 436 transitions. [2024-11-09 05:17:00,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:17:00,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 05:17:00,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:00,518 INFO L225 Difference]: With dead ends: 335 [2024-11-09 05:17:00,518 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 05:17:00,519 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:17:00,519 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 108 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:00,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 184 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:17:00,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 05:17:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 264. [2024-11-09 05:17:00,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 216 states have (on average 1.6111111111111112) internal successors, (348), 254 states have internal predecessors, (348), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:17:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 364 transitions. [2024-11-09 05:17:00,533 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 364 transitions. Word has length 25 [2024-11-09 05:17:00,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:00,533 INFO L471 AbstractCegarLoop]: Abstraction has 264 states and 364 transitions. [2024-11-09 05:17:00,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 364 transitions. [2024-11-09 05:17:00,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:17:00,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:00,535 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:00,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 05:17:00,535 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:00,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:00,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1060011564, now seen corresponding path program 1 times [2024-11-09 05:17:00,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:00,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54442974] [2024-11-09 05:17:00,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:00,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:00,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:00,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54442974] [2024-11-09 05:17:00,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54442974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:00,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:00,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:17:00,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115255983] [2024-11-09 05:17:00,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:00,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:17:00,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:00,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:17:00,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:17:00,612 INFO L87 Difference]: Start difference. First operand 264 states and 364 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:01,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:01,325 INFO L93 Difference]: Finished difference Result 335 states and 434 transitions. [2024-11-09 05:17:01,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:17:01,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 05:17:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:01,327 INFO L225 Difference]: With dead ends: 335 [2024-11-09 05:17:01,327 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 05:17:01,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:17:01,328 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 92 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:01,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 174 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:17:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 05:17:01,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 273. [2024-11-09 05:17:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 225 states have (on average 1.6088888888888888) internal successors, (362), 263 states have internal predecessors, (362), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:17:01,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 378 transitions. [2024-11-09 05:17:01,341 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 378 transitions. Word has length 25 [2024-11-09 05:17:01,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:01,342 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 378 transitions. [2024-11-09 05:17:01,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:01,342 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 378 transitions. [2024-11-09 05:17:01,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:17:01,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:01,343 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:01,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 05:17:01,343 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:01,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:01,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1474179948, now seen corresponding path program 1 times [2024-11-09 05:17:01,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:01,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619171560] [2024-11-09 05:17:01,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:01,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:01,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619171560] [2024-11-09 05:17:01,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619171560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:01,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:01,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:17:01,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491239260] [2024-11-09 05:17:01,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:01,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:17:01,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:01,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:17:01,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:01,479 INFO L87 Difference]: Start difference. First operand 273 states and 378 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:02,185 INFO L93 Difference]: Finished difference Result 356 states and 513 transitions. [2024-11-09 05:17:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:17:02,186 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-09 05:17:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:02,188 INFO L225 Difference]: With dead ends: 356 [2024-11-09 05:17:02,188 INFO L226 Difference]: Without dead ends: 354 [2024-11-09 05:17:02,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:02,189 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 130 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:02,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 84 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:17:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2024-11-09 05:17:02,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 279. [2024-11-09 05:17:02,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 231 states have (on average 1.5974025974025974) internal successors, (369), 269 states have internal predecessors, (369), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:17:02,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 385 transitions. [2024-11-09 05:17:02,203 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 385 transitions. Word has length 25 [2024-11-09 05:17:02,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:02,203 INFO L471 AbstractCegarLoop]: Abstraction has 279 states and 385 transitions. [2024-11-09 05:17:02,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:02,204 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 385 transitions. [2024-11-09 05:17:02,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:17:02,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:02,207 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:02,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 05:17:02,208 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:02,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:02,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1499379761, now seen corresponding path program 1 times [2024-11-09 05:17:02,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:02,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753643679] [2024-11-09 05:17:02,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:02,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:02,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:02,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753643679] [2024-11-09 05:17:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753643679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:02,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:02,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:17:02,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814070927] [2024-11-09 05:17:02,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:02,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:17:02,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:17:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:17:02,411 INFO L87 Difference]: Start difference. First operand 279 states and 385 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:03,918 INFO L93 Difference]: Finished difference Result 335 states and 430 transitions. [2024-11-09 05:17:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:17:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 05:17:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:03,921 INFO L225 Difference]: With dead ends: 335 [2024-11-09 05:17:03,922 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 05:17:03,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:17:03,923 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 102 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:03,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 188 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:17:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 05:17:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 281. [2024-11-09 05:17:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 233 states have (on average 1.592274678111588) internal successors, (371), 271 states have internal predecessors, (371), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:17:03,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 387 transitions. [2024-11-09 05:17:03,937 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 387 transitions. Word has length 26 [2024-11-09 05:17:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:03,937 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 387 transitions. [2024-11-09 05:17:03,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:03,937 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 387 transitions. [2024-11-09 05:17:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 05:17:03,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:03,939 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:03,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 05:17:03,940 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:03,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1545061731, now seen corresponding path program 1 times [2024-11-09 05:17:03,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:03,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191881217] [2024-11-09 05:17:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:03,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:04,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:04,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:04,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191881217] [2024-11-09 05:17:04,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191881217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:04,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:04,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:17:04,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461057373] [2024-11-09 05:17:04,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:04,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:17:04,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:04,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:17:04,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:04,065 INFO L87 Difference]: Start difference. First operand 281 states and 387 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:04,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:04,716 INFO L93 Difference]: Finished difference Result 290 states and 394 transitions. [2024-11-09 05:17:04,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:17:04,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-11-09 05:17:04,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:04,718 INFO L225 Difference]: With dead ends: 290 [2024-11-09 05:17:04,718 INFO L226 Difference]: Without dead ends: 288 [2024-11-09 05:17:04,718 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:17:04,719 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 101 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:04,719 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 114 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:17:04,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2024-11-09 05:17:04,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 281. [2024-11-09 05:17:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 233 states have (on average 1.5793991416309012) internal successors, (368), 271 states have internal predecessors, (368), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:17:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 384 transitions. [2024-11-09 05:17:04,734 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 384 transitions. Word has length 26 [2024-11-09 05:17:04,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:04,734 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 384 transitions. [2024-11-09 05:17:04,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 6 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:04,735 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 384 transitions. [2024-11-09 05:17:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:17:04,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:04,735 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:17:04,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 05:17:04,736 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:04,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1904068239, now seen corresponding path program 1 times [2024-11-09 05:17:04,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:04,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71304353] [2024-11-09 05:17:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:04,809 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:04,809 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:04,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71304353] [2024-11-09 05:17:04,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71304353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:17:04,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808828655] [2024-11-09 05:17:04,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:04,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:04,812 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:04,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:17:04,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:04,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:17:04,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:04,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:04,918 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:17:04,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808828655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:04,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:17:04,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-09 05:17:04,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815428471] [2024-11-09 05:17:04,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:04,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:17:04,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:04,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:17:04,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:17:04,920 INFO L87 Difference]: Start difference. First operand 281 states and 384 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:04,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:04,977 INFO L93 Difference]: Finished difference Result 294 states and 397 transitions. [2024-11-09 05:17:04,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:17:04,978 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2024-11-09 05:17:04,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:04,979 INFO L225 Difference]: With dead ends: 294 [2024-11-09 05:17:04,979 INFO L226 Difference]: Without dead ends: 293 [2024-11-09 05:17:04,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-09 05:17:04,980 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 77 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:04,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 297 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:17:04,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2024-11-09 05:17:05,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 288. [2024-11-09 05:17:05,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 238 states have (on average 1.546218487394958) internal successors, (368), 277 states have internal predecessors, (368), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:17:05,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 388 transitions. [2024-11-09 05:17:05,015 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 388 transitions. Word has length 27 [2024-11-09 05:17:05,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:05,015 INFO L471 AbstractCegarLoop]: Abstraction has 288 states and 388 transitions. [2024-11-09 05:17:05,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:05,017 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 388 transitions. [2024-11-09 05:17:05,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:17:05,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:05,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:05,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:17:05,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:05,223 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:05,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:05,223 INFO L85 PathProgramCache]: Analyzing trace with hash 230621104, now seen corresponding path program 1 times [2024-11-09 05:17:05,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:05,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905352412] [2024-11-09 05:17:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:05,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:05,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:05,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448196431] [2024-11-09 05:17:05,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:05,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:05,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:05,241 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:05,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:17:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:05,295 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:17:05,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:05,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:05,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:17:05,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:05,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905352412] [2024-11-09 05:17:05,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:05,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448196431] [2024-11-09 05:17:05,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448196431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:05,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:05,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:17:05,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888767963] [2024-11-09 05:17:05,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:05,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:17:05,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:05,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:17:05,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:05,474 INFO L87 Difference]: Start difference. First operand 288 states and 388 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:06,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:06,083 INFO L93 Difference]: Finished difference Result 332 states and 437 transitions. [2024-11-09 05:17:06,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:17:06,084 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-09 05:17:06,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:06,087 INFO L225 Difference]: With dead ends: 332 [2024-11-09 05:17:06,087 INFO L226 Difference]: Without dead ends: 322 [2024-11-09 05:17:06,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:17:06,088 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 105 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:06,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 129 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 05:17:06,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-09 05:17:06,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 280. [2024-11-09 05:17:06,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 230 states have (on average 1.508695652173913) internal successors, (347), 269 states have internal predecessors, (347), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:17:06,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 367 transitions. [2024-11-09 05:17:06,104 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 367 transitions. Word has length 29 [2024-11-09 05:17:06,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:06,104 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 367 transitions. [2024-11-09 05:17:06,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:06,105 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 367 transitions. [2024-11-09 05:17:06,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 05:17:06,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:06,105 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:06,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 05:17:06,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-09 05:17:06,310 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:06,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:06,311 INFO L85 PathProgramCache]: Analyzing trace with hash 153511249, now seen corresponding path program 1 times [2024-11-09 05:17:06,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:06,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125533084] [2024-11-09 05:17:06,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:06,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:06,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2136209911] [2024-11-09 05:17:06,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:06,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:06,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:06,340 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:06,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 05:17:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:06,394 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:17:06,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:07,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:09,616 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:09,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:09,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125533084] [2024-11-09 05:17:09,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:09,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2136209911] [2024-11-09 05:17:09,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2136209911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:09,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [668822514] [2024-11-09 05:17:09,638 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 05:17:09,638 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:17:09,641 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:17:09,647 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:17:09,647 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:17:15,252 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 05:17:15,478 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:17:33,485 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10598#(exists ((|v_ULTIMATE.start_main_~b~0#1_91| Int) (|v_ULTIMATE.start_main_~a~0#1_91| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post6#1_29| Int)) (and (<= 1 |#StackHeapBarrier|) (= (+ |v_ULTIMATE.start_main_#t~post6#1_29| 1) ~counter~0) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |v_ULTIMATE.start_main_#t~post6#1_29| 49) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))) (<= (+ (* |v_ULTIMATE.start_main_~b~0#1_91| |v_ULTIMATE.start_main_~a~0#1_91|) 9223372036854775809) 0)))' at error location [2024-11-09 05:17:33,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:17:33,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:17:33,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 05:17:33,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695051714] [2024-11-09 05:17:33,486 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:17:33,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:17:33,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:33,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:17:33,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=763, Unknown=7, NotChecked=0, Total=930 [2024-11-09 05:17:33,488 INFO L87 Difference]: Start difference. First operand 280 states and 367 transitions. Second operand has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:17:38,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:38,448 INFO L93 Difference]: Finished difference Result 568 states and 793 transitions. [2024-11-09 05:17:38,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 05:17:38,449 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2024-11-09 05:17:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:38,451 INFO L225 Difference]: With dead ends: 568 [2024-11-09 05:17:38,451 INFO L226 Difference]: Without dead ends: 543 [2024-11-09 05:17:38,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 48 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 702 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=330, Invalid=1469, Unknown=7, NotChecked=0, Total=1806 [2024-11-09 05:17:38,453 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 385 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 592 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 592 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:38,454 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 117 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 592 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 05:17:38,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2024-11-09 05:17:38,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 349. [2024-11-09 05:17:38,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 299 states have (on average 1.4816053511705685) internal successors, (443), 336 states have internal predecessors, (443), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 05:17:38,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 465 transitions. [2024-11-09 05:17:38,483 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 465 transitions. Word has length 29 [2024-11-09 05:17:38,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:38,484 INFO L471 AbstractCegarLoop]: Abstraction has 349 states and 465 transitions. [2024-11-09 05:17:38,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.416666666666667) internal successors, (53), 13 states have internal predecessors, (53), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:17:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 465 transitions. [2024-11-09 05:17:38,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:17:38,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:38,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:17:38,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 05:17:38,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-09 05:17:38,689 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:38,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:38,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1440680223, now seen corresponding path program 1 times [2024-11-09 05:17:38,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:38,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688373708] [2024-11-09 05:17:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:38,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:38,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369385706] [2024-11-09 05:17:38,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:38,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:38,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:38,709 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:38,711 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 05:17:38,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:38,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:17:38,756 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:38,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:17:38,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688373708] [2024-11-09 05:17:38,950 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:38,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369385706] [2024-11-09 05:17:38,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369385706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:17:38,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:17:38,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:17:38,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377791686] [2024-11-09 05:17:38,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:17:38,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:17:38,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:17:38,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:17:38,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:17:38,952 INFO L87 Difference]: Start difference. First operand 349 states and 465 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:39,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:17:39,534 INFO L93 Difference]: Finished difference Result 390 states and 513 transitions. [2024-11-09 05:17:39,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:17:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-11-09 05:17:39,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:17:39,537 INFO L225 Difference]: With dead ends: 390 [2024-11-09 05:17:39,537 INFO L226 Difference]: Without dead ends: 385 [2024-11-09 05:17:39,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:17:39,538 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 71 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:17:39,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 103 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:17:39,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-09 05:17:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 341. [2024-11-09 05:17:39,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 291 states have (on average 1.4673539518900343) internal successors, (427), 328 states have internal predecessors, (427), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-09 05:17:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 449 transitions. [2024-11-09 05:17:39,565 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 449 transitions. Word has length 30 [2024-11-09 05:17:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:17:39,565 INFO L471 AbstractCegarLoop]: Abstraction has 341 states and 449 transitions. [2024-11-09 05:17:39,566 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:17:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 449 transitions. [2024-11-09 05:17:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:17:39,566 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:17:39,567 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:17:39,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 05:17:39,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-09 05:17:39,771 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:17:39,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:17:39,773 INFO L85 PathProgramCache]: Analyzing trace with hash 463881479, now seen corresponding path program 1 times [2024-11-09 05:17:39,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:17:39,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077849812] [2024-11-09 05:17:39,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:39,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:17:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:17:39,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011357531] [2024-11-09 05:17:39,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:17:39,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:17:39,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:17:39,797 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:17:39,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 05:17:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:17:39,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:17:39,853 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:17:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:40,456 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:17:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:17:42,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:17:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077849812] [2024-11-09 05:17:42,802 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:17:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011357531] [2024-11-09 05:17:42,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011357531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:17:42,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1054001144] [2024-11-09 05:17:42,804 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 05:17:42,805 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:17:42,805 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:17:42,805 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:17:42,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:17:45,825 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 05:17:45,989 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:04,862 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '12697#(exists ((|v_ULTIMATE.start_main_~a~0#1_99| Int) (|v_ULTIMATE.start_main_~b~0#1_99| Int)) (and (exists ((|v_ULTIMATE.start_main_#t~post6#1_36| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (= ~counter~0 (+ |v_ULTIMATE.start_main_#t~post6#1_36| 1)) (<= |v_ULTIMATE.start_main_#t~post6#1_36| 49) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))) (<= 9223372036854775808 (* |v_ULTIMATE.start_main_~b~0#1_99| |v_ULTIMATE.start_main_~a~0#1_99|))))' at error location [2024-11-09 05:18:04,862 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:18:04,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:18:04,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 05:18:04,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049470037] [2024-11-09 05:18:04,862 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:18:04,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 05:18:04,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:04,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 05:18:04,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=770, Unknown=4, NotChecked=0, Total=930 [2024-11-09 05:18:04,864 INFO L87 Difference]: Start difference. First operand 341 states and 449 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:18:11,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:11,902 INFO L93 Difference]: Finished difference Result 554 states and 747 transitions. [2024-11-09 05:18:11,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:18:11,903 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 30 [2024-11-09 05:18:11,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:11,905 INFO L225 Difference]: With dead ends: 554 [2024-11-09 05:18:11,905 INFO L226 Difference]: Without dead ends: 520 [2024-11-09 05:18:11,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 8 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 626 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=294, Invalid=1342, Unknown=4, NotChecked=0, Total=1640 [2024-11-09 05:18:11,907 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 334 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:11,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 142 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-09 05:18:11,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-09 05:18:11,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 373. [2024-11-09 05:18:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 324 states have (on average 1.4104938271604939) internal successors, (457), 360 states have internal predecessors, (457), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:11,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 477 transitions. [2024-11-09 05:18:11,955 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 477 transitions. Word has length 30 [2024-11-09 05:18:11,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:11,955 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 477 transitions. [2024-11-09 05:18:11,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:18:11,956 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 477 transitions. [2024-11-09 05:18:11,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:18:11,956 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:11,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:11,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 05:18:12,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:12,160 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:12,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:12,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1711413806, now seen corresponding path program 1 times [2024-11-09 05:18:12,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:12,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238080017] [2024-11-09 05:18:12,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:12,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:12,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:12,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:12,226 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:12,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238080017] [2024-11-09 05:18:12,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238080017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:12,226 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:12,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:18:12,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292289393] [2024-11-09 05:18:12,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:12,227 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:18:12,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:12,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:18:12,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:18:12,227 INFO L87 Difference]: Start difference. First operand 373 states and 477 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:13,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:13,204 INFO L93 Difference]: Finished difference Result 412 states and 511 transitions. [2024-11-09 05:18:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:18:13,204 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-09 05:18:13,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:13,206 INFO L225 Difference]: With dead ends: 412 [2024-11-09 05:18:13,206 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 05:18:13,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:18:13,207 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 68 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:13,207 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 148 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-09 05:18:13,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 05:18:13,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 394. [2024-11-09 05:18:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 345 states have (on average 1.4057971014492754) internal successors, (485), 381 states have internal predecessors, (485), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:13,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 505 transitions. [2024-11-09 05:18:13,240 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 505 transitions. Word has length 31 [2024-11-09 05:18:13,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:13,240 INFO L471 AbstractCegarLoop]: Abstraction has 394 states and 505 transitions. [2024-11-09 05:18:13,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:13,241 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 505 transitions. [2024-11-09 05:18:13,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:18:13,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:13,241 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:18:13,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-09 05:18:13,242 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:13,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:13,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1495424019, now seen corresponding path program 1 times [2024-11-09 05:18:13,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:13,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994780857] [2024-11-09 05:18:13,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:13,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:13,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [718896048] [2024-11-09 05:18:13,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:13,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:13,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:13,258 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:13,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 05:18:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:13,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:18:13,326 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:13,744 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:13,744 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:16,723 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994780857] [2024-11-09 05:18:16,723 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:16,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718896048] [2024-11-09 05:18:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718896048] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:16,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:18:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 05:18:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294801878] [2024-11-09 05:18:16,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:16,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:18:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:16,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:18:16,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:18:16,725 INFO L87 Difference]: Start difference. First operand 394 states and 505 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:19,879 INFO L93 Difference]: Finished difference Result 409 states and 521 transitions. [2024-11-09 05:18:19,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:18:19,880 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2024-11-09 05:18:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:19,881 INFO L225 Difference]: With dead ends: 409 [2024-11-09 05:18:19,881 INFO L226 Difference]: Without dead ends: 408 [2024-11-09 05:18:19,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:18:19,882 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 127 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:19,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 74 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 05:18:19,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2024-11-09 05:18:19,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 401. [2024-11-09 05:18:19,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 352 states have (on average 1.3920454545454546) internal successors, (490), 388 states have internal predecessors, (490), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:19,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 510 transitions. [2024-11-09 05:18:19,918 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 510 transitions. Word has length 31 [2024-11-09 05:18:19,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:19,919 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 510 transitions. [2024-11-09 05:18:19,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 7 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:19,919 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 510 transitions. [2024-11-09 05:18:19,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:18:19,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:19,920 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:18:19,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:20,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:20,124 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:20,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:20,124 INFO L85 PathProgramCache]: Analyzing trace with hash 987820243, now seen corresponding path program 1 times [2024-11-09 05:18:20,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:20,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918702821] [2024-11-09 05:18:20,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:20,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:20,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:20,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [59454914] [2024-11-09 05:18:20,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:20,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:20,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:20,147 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:20,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-09 05:18:20,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:20,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 05:18:20,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:20,385 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:20,385 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:18:20,385 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:20,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918702821] [2024-11-09 05:18:20,385 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:20,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59454914] [2024-11-09 05:18:20,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59454914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:20,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:18:20,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056230534] [2024-11-09 05:18:20,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:20,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:18:20,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:18:20,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:18:20,387 INFO L87 Difference]: Start difference. First operand 401 states and 510 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:20,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:20,777 INFO L93 Difference]: Finished difference Result 405 states and 512 transitions. [2024-11-09 05:18:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:18:20,778 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 05:18:20,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:20,779 INFO L225 Difference]: With dead ends: 405 [2024-11-09 05:18:20,779 INFO L226 Difference]: Without dead ends: 403 [2024-11-09 05:18:20,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:20,780 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 35 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:20,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 115 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:18:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2024-11-09 05:18:20,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 401. [2024-11-09 05:18:20,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 352 states have (on average 1.3863636363636365) internal successors, (488), 388 states have internal predecessors, (488), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:20,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 508 transitions. [2024-11-09 05:18:20,816 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 508 transitions. Word has length 32 [2024-11-09 05:18:20,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:20,817 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 508 transitions. [2024-11-09 05:18:20,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 508 transitions. [2024-11-09 05:18:20,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:18:20,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:20,818 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:20,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-09 05:18:21,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-09 05:18:21,022 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:21,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:21,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1514220285, now seen corresponding path program 1 times [2024-11-09 05:18:21,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:21,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067498962] [2024-11-09 05:18:21,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:21,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:21,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:21,157 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:21,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067498962] [2024-11-09 05:18:21,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067498962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:21,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:21,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:18:21,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491460001] [2024-11-09 05:18:21,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:21,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:18:21,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:21,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:18:21,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:18:21,159 INFO L87 Difference]: Start difference. First operand 401 states and 508 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:21,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:21,867 INFO L93 Difference]: Finished difference Result 418 states and 512 transitions. [2024-11-09 05:18:21,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:18:21,868 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 05:18:21,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:21,870 INFO L225 Difference]: With dead ends: 418 [2024-11-09 05:18:21,870 INFO L226 Difference]: Without dead ends: 417 [2024-11-09 05:18:21,870 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:18:21,871 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 59 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:21,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 157 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:18:21,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-09 05:18:21,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 403. [2024-11-09 05:18:21,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 403 states, 354 states have (on average 1.384180790960452) internal successors, (490), 390 states have internal predecessors, (490), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 403 states and 510 transitions. [2024-11-09 05:18:21,905 INFO L78 Accepts]: Start accepts. Automaton has 403 states and 510 transitions. Word has length 32 [2024-11-09 05:18:21,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:21,905 INFO L471 AbstractCegarLoop]: Abstraction has 403 states and 510 transitions. [2024-11-09 05:18:21,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:21,905 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 510 transitions. [2024-11-09 05:18:21,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:18:21,906 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:21,906 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:18:21,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-09 05:18:21,906 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:21,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:21,907 INFO L85 PathProgramCache]: Analyzing trace with hash -886495607, now seen corresponding path program 1 times [2024-11-09 05:18:21,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:21,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27038185] [2024-11-09 05:18:21,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:21,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:21,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687625025] [2024-11-09 05:18:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:21,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:21,925 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:21,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-09 05:18:21,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:21,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:18:21,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:22,269 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:22,270 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:24,551 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:24,551 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:24,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27038185] [2024-11-09 05:18:24,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:24,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687625025] [2024-11-09 05:18:24,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1687625025] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:24,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:18:24,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 05:18:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575164114] [2024-11-09 05:18:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:24,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:18:24,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:24,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:18:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:18:24,553 INFO L87 Difference]: Start difference. First operand 403 states and 510 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:27,291 INFO L93 Difference]: Finished difference Result 413 states and 520 transitions. [2024-11-09 05:18:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:18:27,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2024-11-09 05:18:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:27,294 INFO L225 Difference]: With dead ends: 413 [2024-11-09 05:18:27,294 INFO L226 Difference]: Without dead ends: 412 [2024-11-09 05:18:27,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-09 05:18:27,295 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 111 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:27,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 76 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:18:27,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-09 05:18:27,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 404. [2024-11-09 05:18:27,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 355 states have (on average 1.3774647887323943) internal successors, (489), 391 states have internal predecessors, (489), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:27,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 509 transitions. [2024-11-09 05:18:27,326 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 509 transitions. Word has length 32 [2024-11-09 05:18:27,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:27,327 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 509 transitions. [2024-11-09 05:18:27,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:27,327 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 509 transitions. [2024-11-09 05:18:27,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:18:27,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:27,328 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:18:27,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-09 05:18:27,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-09 05:18:27,529 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:27,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:27,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1994976994, now seen corresponding path program 1 times [2024-11-09 05:18:27,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:27,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523603920] [2024-11-09 05:18:27,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:27,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:27,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:27,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [845564407] [2024-11-09 05:18:27,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:27,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:27,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:27,543 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:27,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-09 05:18:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:27,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 05:18:27,601 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:28,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:29,679 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:29,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:29,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523603920] [2024-11-09 05:18:29,680 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:29,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [845564407] [2024-11-09 05:18:29,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [845564407] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:29,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1156469036] [2024-11-09 05:18:29,682 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2024-11-09 05:18:29,682 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:29,684 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:29,684 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:29,684 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:18:32,095 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-09 05:18:32,139 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:40,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1156469036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:40,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:18:40,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [7, 7] total 24 [2024-11-09 05:18:40,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119007141] [2024-11-09 05:18:40,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:40,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 05:18:40,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 05:18:40,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=441, Unknown=1, NotChecked=0, Total=600 [2024-11-09 05:18:40,104 INFO L87 Difference]: Start difference. First operand 404 states and 509 transitions. Second operand has 14 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:41,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:41,277 INFO L93 Difference]: Finished difference Result 417 states and 515 transitions. [2024-11-09 05:18:41,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:18:41,278 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-09 05:18:41,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:41,279 INFO L225 Difference]: With dead ends: 417 [2024-11-09 05:18:41,279 INFO L226 Difference]: Without dead ends: 411 [2024-11-09 05:18:41,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 62 SyntacticMatches, 12 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=158, Invalid=441, Unknown=1, NotChecked=0, Total=600 [2024-11-09 05:18:41,280 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 17 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:41,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 136 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 05:18:41,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-09 05:18:41,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 400. [2024-11-09 05:18:41,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 350 states have (on average 1.3657142857142857) internal successors, (478), 386 states have internal predecessors, (478), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 498 transitions. [2024-11-09 05:18:41,314 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 498 transitions. Word has length 33 [2024-11-09 05:18:41,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:41,314 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 498 transitions. [2024-11-09 05:18:41,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 2.0833333333333335) internal successors, (25), 12 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:41,315 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 498 transitions. [2024-11-09 05:18:41,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 05:18:41,315 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:41,315 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 05:18:41,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-09 05:18:41,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:41,520 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:41,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:41,520 INFO L85 PathProgramCache]: Analyzing trace with hash 107483029, now seen corresponding path program 1 times [2024-11-09 05:18:41,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:41,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320628044] [2024-11-09 05:18:41,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:41,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:41,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:41,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079027474] [2024-11-09 05:18:41,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:41,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:41,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:41,536 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:41,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-09 05:18:41,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:41,585 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:18:41,588 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:41,775 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:41,775 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:18:41,775 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:41,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320628044] [2024-11-09 05:18:41,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:41,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079027474] [2024-11-09 05:18:41,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079027474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:18:41,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:18:41,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:18:41,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291307769] [2024-11-09 05:18:41,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:41,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:18:41,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:41,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:18:41,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:41,777 INFO L87 Difference]: Start difference. First operand 400 states and 498 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:42,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:42,183 INFO L93 Difference]: Finished difference Result 406 states and 502 transitions. [2024-11-09 05:18:42,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:42,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2024-11-09 05:18:42,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:42,184 INFO L225 Difference]: With dead ends: 406 [2024-11-09 05:18:42,184 INFO L226 Difference]: Without dead ends: 404 [2024-11-09 05:18:42,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:18:42,185 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 51 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:42,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 132 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:18:42,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-09 05:18:42,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 400. [2024-11-09 05:18:42,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 350 states have (on average 1.36) internal successors, (476), 386 states have internal predecessors, (476), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:42,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 496 transitions. [2024-11-09 05:18:42,224 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 496 transitions. Word has length 34 [2024-11-09 05:18:42,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:42,224 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 496 transitions. [2024-11-09 05:18:42,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:42,224 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 496 transitions. [2024-11-09 05:18:42,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:18:42,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:42,225 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:42,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-09 05:18:42,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-09 05:18:42,429 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:42,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:42,429 INFO L85 PathProgramCache]: Analyzing trace with hash -962993333, now seen corresponding path program 1 times [2024-11-09 05:18:42,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:42,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260942564] [2024-11-09 05:18:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:42,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:42,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:42,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1172244107] [2024-11-09 05:18:42,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:42,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:42,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:42,442 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:42,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-09 05:18:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:42,499 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 05:18:42,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:42,900 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:42,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:42,992 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 05:18:42,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:42,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260942564] [2024-11-09 05:18:42,993 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:42,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172244107] [2024-11-09 05:18:42,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172244107] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:18:42,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:18:42,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-09 05:18:42,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591624772] [2024-11-09 05:18:42,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:18:42,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:18:42,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:42,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:18:42,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:18:42,994 INFO L87 Difference]: Start difference. First operand 400 states and 496 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:45,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:18:45,689 INFO L93 Difference]: Finished difference Result 428 states and 539 transitions. [2024-11-09 05:18:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:18:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2024-11-09 05:18:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:18:45,691 INFO L225 Difference]: With dead ends: 428 [2024-11-09 05:18:45,691 INFO L226 Difference]: Without dead ends: 427 [2024-11-09 05:18:45,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:18:45,692 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 42 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:18:45,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 87 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 05:18:45,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-09 05:18:45,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 420. [2024-11-09 05:18:45,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 370 states have (on average 1.3675675675675676) internal successors, (506), 406 states have internal predecessors, (506), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:18:45,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 526 transitions. [2024-11-09 05:18:45,736 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 526 transitions. Word has length 35 [2024-11-09 05:18:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:18:45,736 INFO L471 AbstractCegarLoop]: Abstraction has 420 states and 526 transitions. [2024-11-09 05:18:45,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:18:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 526 transitions. [2024-11-09 05:18:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-09 05:18:45,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:18:45,737 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:18:45,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-09 05:18:45,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-11-09 05:18:45,941 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:18:45,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:18:45,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1060113620, now seen corresponding path program 1 times [2024-11-09 05:18:45,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:18:45,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009618190] [2024-11-09 05:18:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:45,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:18:45,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:18:45,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [155526328] [2024-11-09 05:18:45,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:18:45,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:18:45,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:18:45,956 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:18:45,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-09 05:18:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:18:46,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:18:46,010 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:18:46,256 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:46,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:46,471 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:18:46,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009618190] [2024-11-09 05:18:46,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155526328] [2024-11-09 05:18:46,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155526328] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:46,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1613215912] [2024-11-09 05:18:46,474 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 05:18:46,474 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:46,475 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:46,475 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:46,475 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:18:47,696 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 05:18:47,705 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:18:57,504 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '21982#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~p~0#1| 1) (<= 0 (+ 9223372036854775808 |ULTIMATE.start_main_~q~0#1|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= |ULTIMATE.start_main_~q~0#1| 9223372036854775807) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_118| Int) (|v_ULTIMATE.start_main_~a~0#1_116| Int)) (and (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~a~0#1_116| |v_ULTIMATE.start_main_~b~0#1_118|)) 0) (<= 0 (+ 9223372039002259455 |v_ULTIMATE.start_main_~b~0#1_118|)) (<= |v_ULTIMATE.start_main_~b~0#1_118| 2147483647) (<= |v_ULTIMATE.start_main_~a~0#1_116| 2147483647) (<= 0 (+ 9223372039002259455 |v_ULTIMATE.start_main_~a~0#1_116|)))))' at error location [2024-11-09 05:18:57,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:18:57,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:18:57,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-09 05:18:57,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448144687] [2024-11-09 05:18:57,504 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:18:57,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:18:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:18:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:18:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=812, Unknown=0, NotChecked=0, Total=992 [2024-11-09 05:18:57,506 INFO L87 Difference]: Start difference. First operand 420 states and 526 transitions. Second operand has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:04,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:04,654 INFO L93 Difference]: Finished difference Result 525 states and 665 transitions. [2024-11-09 05:19:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:19:04,654 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2024-11-09 05:19:04,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:04,657 INFO L225 Difference]: With dead ends: 525 [2024-11-09 05:19:04,657 INFO L226 Difference]: Without dead ends: 514 [2024-11-09 05:19:04,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 71 SyntacticMatches, 8 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:19:04,658 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 174 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 710 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:04,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 199 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 710 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-09 05:19:04,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2024-11-09 05:19:04,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 474. [2024-11-09 05:19:04,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 422 states have (on average 1.3625592417061612) internal successors, (575), 458 states have internal predecessors, (575), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-09 05:19:04,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 599 transitions. [2024-11-09 05:19:04,710 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 599 transitions. Word has length 37 [2024-11-09 05:19:04,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:04,710 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 599 transitions. [2024-11-09 05:19:04,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.666666666666667) internal successors, (69), 10 states have internal predecessors, (69), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:04,710 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 599 transitions. [2024-11-09 05:19:04,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:19:04,711 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:04,711 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 05:19:04,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-09 05:19:04,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-09 05:19:04,915 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:19:04,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:04,916 INFO L85 PathProgramCache]: Analyzing trace with hash -861937874, now seen corresponding path program 1 times [2024-11-09 05:19:04,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:04,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492853103] [2024-11-09 05:19:04,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:04,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:04,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1748949567] [2024-11-09 05:19:04,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:04,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:04,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:04,938 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:04,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-09 05:19:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:05,021 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:19:05,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:05,379 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:06,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492853103] [2024-11-09 05:19:06,174 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:06,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748949567] [2024-11-09 05:19:06,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748949567] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:19:06,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [481144164] [2024-11-09 05:19:06,176 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 05:19:06,176 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:06,177 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:06,177 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:06,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:07,351 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 05:19:07,366 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:17,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [481144164] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:17,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:19:17,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [5, 5] total 30 [2024-11-09 05:19:17,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640779728] [2024-11-09 05:19:17,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:17,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-09 05:19:17,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:17,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-09 05:19:17,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:19:17,780 INFO L87 Difference]: Start difference. First operand 474 states and 599 transitions. Second operand has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:29,548 INFO L93 Difference]: Finished difference Result 606 states and 758 transitions. [2024-11-09 05:19:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-11-09 05:19:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2024-11-09 05:19:29,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:29,550 INFO L225 Difference]: With dead ends: 606 [2024-11-09 05:19:29,550 INFO L226 Difference]: Without dead ends: 600 [2024-11-09 05:19:29,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 78 SyntacticMatches, 8 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 687 ImplicationChecksByTransitivity, 17.7s TimeCoverageRelationStatistics Valid=464, Invalid=1792, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 05:19:29,551 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 129 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 1494 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:29,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 154 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1494 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 05:19:29,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2024-11-09 05:19:29,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 529. [2024-11-09 05:19:29,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 471 states have (on average 1.3524416135881103) internal successors, (637), 508 states have internal predecessors, (637), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:19:29,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 667 transitions. [2024-11-09 05:19:29,620 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 667 transitions. Word has length 39 [2024-11-09 05:19:29,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:29,620 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 667 transitions. [2024-11-09 05:19:29,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:29,621 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 667 transitions. [2024-11-09 05:19:29,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 05:19:29,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:29,622 INFO L215 NwaCegarLoop]: trace histogram [2, 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] [2024-11-09 05:19:29,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:29,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-09 05:19:29,826 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:19:29,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:29,826 INFO L85 PathProgramCache]: Analyzing trace with hash 606393136, now seen corresponding path program 1 times [2024-11-09 05:19:29,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:29,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160446811] [2024-11-09 05:19:29,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:29,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:29,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:29,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1214013933] [2024-11-09 05:19:29,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:29,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:29,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:29,844 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:29,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-09 05:19:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:29,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 05:19:29,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:31,198 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:31,198 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:32,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:32,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160446811] [2024-11-09 05:19:32,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:32,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214013933] [2024-11-09 05:19:32,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214013933] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:32,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1197758453] [2024-11-09 05:19:32,516 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2024-11-09 05:19:32,516 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:19:32,517 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:19:32,517 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:19:32,517 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:19:33,638 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 05:19:33,654 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:19:43,913 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24834#(and (exists ((|v_ULTIMATE.start_main_~b~0#1_132| Int) (|v_ULTIMATE.start_main_~a~0#1_130| Int)) (and (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_130| |v_ULTIMATE.start_main_~b~0#1_132|))) (<= |v_ULTIMATE.start_main_~b~0#1_132| 2147483647) (<= (+ (* |v_ULTIMATE.start_main_~a~0#1_130| |v_ULTIMATE.start_main_~b~0#1_132|) 1) 0) (<= |v_ULTIMATE.start_main_~a~0#1_130| 2147483647))) (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 05:19:43,913 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:19:43,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:43,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-09 05:19:43,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19520747] [2024-11-09 05:19:43,913 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:19:43,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:19:43,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:43,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:19:43,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=999, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:19:43,915 INFO L87 Difference]: Start difference. First operand 529 states and 667 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:46,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:46,555 INFO L93 Difference]: Finished difference Result 551 states and 689 transitions. [2024-11-09 05:19:46,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:19:46,555 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2024-11-09 05:19:46,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:46,557 INFO L225 Difference]: With dead ends: 551 [2024-11-09 05:19:46,557 INFO L226 Difference]: Without dead ends: 549 [2024-11-09 05:19:46,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 66 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=221, Invalid=1185, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:19:46,557 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 99 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:46,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 158 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 05:19:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2024-11-09 05:19:46,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 534. [2024-11-09 05:19:46,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 476 states have (on average 1.346638655462185) internal successors, (641), 513 states have internal predecessors, (641), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:19:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 671 transitions. [2024-11-09 05:19:46,626 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 671 transitions. Word has length 41 [2024-11-09 05:19:46,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:46,626 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 671 transitions. [2024-11-09 05:19:46,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:46,626 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 671 transitions. [2024-11-09 05:19:46,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 05:19:46,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:46,627 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 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] [2024-11-09 05:19:46,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-09 05:19:46,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-09 05:19:46,831 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:19:46,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:46,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1618318096, now seen corresponding path program 1 times [2024-11-09 05:19:46,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:46,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321159087] [2024-11-09 05:19:46,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:46,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:46,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359923063] [2024-11-09 05:19:46,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:46,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:46,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:46,854 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:46,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-09 05:19:46,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:46,910 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:19:46,911 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:49,551 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:49,551 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:50,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:19:50,191 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321159087] [2024-11-09 05:19:50,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:50,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359923063] [2024-11-09 05:19:50,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359923063] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:50,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:50,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2024-11-09 05:19:50,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218461163] [2024-11-09 05:19:50,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:50,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:19:50,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:50,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:19:50,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:19:50,193 INFO L87 Difference]: Start difference. First operand 534 states and 671 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:52,970 INFO L93 Difference]: Finished difference Result 561 states and 705 transitions. [2024-11-09 05:19:52,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:19:52,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2024-11-09 05:19:52,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:52,973 INFO L225 Difference]: With dead ends: 561 [2024-11-09 05:19:52,973 INFO L226 Difference]: Without dead ends: 560 [2024-11-09 05:19:52,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 72 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:19:52,974 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 89 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:52,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 63 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 05:19:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-09 05:19:53,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 534. [2024-11-09 05:19:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 476 states have (on average 1.3298319327731092) internal successors, (633), 513 states have internal predecessors, (633), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:19:53,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 663 transitions. [2024-11-09 05:19:53,020 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 663 transitions. Word has length 42 [2024-11-09 05:19:53,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:53,021 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 663 transitions. [2024-11-09 05:19:53,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:19:53,021 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 663 transitions. [2024-11-09 05:19:53,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-09 05:19:53,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:53,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:53,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-11-09 05:19:53,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:53,222 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:19:53,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:53,222 INFO L85 PathProgramCache]: Analyzing trace with hash -730162898, now seen corresponding path program 1 times [2024-11-09 05:19:53,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:53,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909557993] [2024-11-09 05:19:53,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:53,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:53,298 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:19:53,298 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:53,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909557993] [2024-11-09 05:19:53,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909557993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:19:53,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:19:53,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:19:53,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335936141] [2024-11-09 05:19:53,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:53,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:19:53,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:53,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:19:53,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:53,300 INFO L87 Difference]: Start difference. First operand 534 states and 663 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:19:53,555 INFO L93 Difference]: Finished difference Result 534 states and 663 transitions. [2024-11-09 05:19:53,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:19:53,555 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 45 [2024-11-09 05:19:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:19:53,557 INFO L225 Difference]: With dead ends: 534 [2024-11-09 05:19:53,557 INFO L226 Difference]: Without dead ends: 531 [2024-11-09 05:19:53,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:19:53,558 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 43 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:19:53,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 39 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:19:53,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-09 05:19:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2024-11-09 05:19:53,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 476 states have (on average 1.3109243697478992) internal successors, (624), 510 states have internal predecessors, (624), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:19:53,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 654 transitions. [2024-11-09 05:19:53,625 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 654 transitions. Word has length 45 [2024-11-09 05:19:53,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:19:53,625 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 654 transitions. [2024-11-09 05:19:53,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:19:53,626 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 654 transitions. [2024-11-09 05:19:53,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:19:53,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:19:53,627 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:19:53,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-09 05:19:53,627 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:19:53,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:19:53,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1173604295, now seen corresponding path program 1 times [2024-11-09 05:19:53,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:19:53,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154361212] [2024-11-09 05:19:53,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:53,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:19:53,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:19:53,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582831914] [2024-11-09 05:19:53,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:19:53,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:19:53,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:19:53,654 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:19:53,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-09 05:19:53,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:19:53,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:19:53,704 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:19:55,804 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:19:55,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:19:57,260 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:19:57,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:19:57,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154361212] [2024-11-09 05:19:57,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:19:57,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582831914] [2024-11-09 05:19:57,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582831914] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:19:57,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:19:57,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 05:19:57,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882273943] [2024-11-09 05:19:57,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:19:57,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:19:57,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:19:57,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:19:57,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:19:57,262 INFO L87 Difference]: Start difference. First operand 531 states and 654 transitions. Second operand has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:00,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:00,258 INFO L93 Difference]: Finished difference Result 623 states and 779 transitions. [2024-11-09 05:20:00,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:00,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-09 05:20:00,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:00,265 INFO L225 Difference]: With dead ends: 623 [2024-11-09 05:20:00,265 INFO L226 Difference]: Without dead ends: 622 [2024-11-09 05:20:00,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:00,266 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 88 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:00,266 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 118 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 05:20:00,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2024-11-09 05:20:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 530. [2024-11-09 05:20:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 476 states have (on average 1.3046218487394958) internal successors, (621), 509 states have internal predecessors, (621), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:20:00,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 651 transitions. [2024-11-09 05:20:00,308 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 651 transitions. Word has length 46 [2024-11-09 05:20:00,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:00,309 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 651 transitions. [2024-11-09 05:20:00,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 8.75) internal successors, (35), 6 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:00,309 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 651 transitions. [2024-11-09 05:20:00,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 05:20:00,309 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:00,310 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:00,322 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:00,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-09 05:20:00,510 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:00,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:00,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1160213241, now seen corresponding path program 1 times [2024-11-09 05:20:00,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:00,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448970816] [2024-11-09 05:20:00,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:00,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:20:00,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617539019] [2024-11-09 05:20:00,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:00,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:00,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:00,536 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:00,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-09 05:20:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:00,598 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:20:00,600 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:05,083 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:05,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:05,831 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:20:05,831 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:05,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448970816] [2024-11-09 05:20:05,831 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:20:05,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617539019] [2024-11-09 05:20:05,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617539019] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:05,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:05,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 05:20:05,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947399035] [2024-11-09 05:20:05,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:05,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:05,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:05,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:05,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:05,833 INFO L87 Difference]: Start difference. First operand 530 states and 651 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:07,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:07,235 INFO L93 Difference]: Finished difference Result 578 states and 722 transitions. [2024-11-09 05:20:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:07,236 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2024-11-09 05:20:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:07,238 INFO L225 Difference]: With dead ends: 578 [2024-11-09 05:20:07,238 INFO L226 Difference]: Without dead ends: 577 [2024-11-09 05:20:07,238 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:07,239 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 42 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:07,239 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 120 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 05:20:07,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-09 05:20:07,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 529. [2024-11-09 05:20:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 476 states have (on average 1.300420168067227) internal successors, (619), 508 states have internal predecessors, (619), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:20:07,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 649 transitions. [2024-11-09 05:20:07,299 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 649 transitions. Word has length 46 [2024-11-09 05:20:07,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:07,299 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 649 transitions. [2024-11-09 05:20:07,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:07,300 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 649 transitions. [2024-11-09 05:20:07,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:20:07,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:07,300 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:07,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:07,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-09 05:20:07,501 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:07,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:07,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1606871984, now seen corresponding path program 1 times [2024-11-09 05:20:07,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:07,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020113824] [2024-11-09 05:20:07,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:07,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:07,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:20:07,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [274668661] [2024-11-09 05:20:07,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:07,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:07,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:07,523 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:07,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-09 05:20:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:07,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-09 05:20:07,592 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:11,872 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:11,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:13,496 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:20:13,497 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:13,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020113824] [2024-11-09 05:20:13,497 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:20:13,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [274668661] [2024-11-09 05:20:13,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [274668661] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:13,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:13,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2024-11-09 05:20:13,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825752723] [2024-11-09 05:20:13,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:13,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:20:13,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:13,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:20:13,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:13,498 INFO L87 Difference]: Start difference. First operand 529 states and 649 transitions. Second operand has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:15,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:15,760 INFO L93 Difference]: Finished difference Result 577 states and 720 transitions. [2024-11-09 05:20:15,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:15,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 47 [2024-11-09 05:20:15,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:15,762 INFO L225 Difference]: With dead ends: 577 [2024-11-09 05:20:15,762 INFO L226 Difference]: Without dead ends: 576 [2024-11-09 05:20:15,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:15,763 INFO L432 NwaCegarLoop]: 48 mSDtfsCounter, 92 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:15,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 103 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 05:20:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2024-11-09 05:20:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 528. [2024-11-09 05:20:15,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 476 states have (on average 1.296218487394958) internal successors, (617), 507 states have internal predecessors, (617), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-09 05:20:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 647 transitions. [2024-11-09 05:20:15,834 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 647 transitions. Word has length 47 [2024-11-09 05:20:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:15,834 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 647 transitions. [2024-11-09 05:20:15,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 9.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 647 transitions. [2024-11-09 05:20:15,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:20:15,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:15,836 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 05:20:15,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-09 05:20:16,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-09 05:20:16,040 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:16,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:16,040 INFO L85 PathProgramCache]: Analyzing trace with hash -2005896159, now seen corresponding path program 1 times [2024-11-09 05:20:16,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:16,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812126129] [2024-11-09 05:20:16,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:16,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:16,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:16,115 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:16,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812126129] [2024-11-09 05:20:16,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812126129] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866755363] [2024-11-09 05:20:16,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:16,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:16,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:16,119 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:16,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-09 05:20:16,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:16,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:20:16,174 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:16,273 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:16,373 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:16,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866755363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:20:16,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [428574008] [2024-11-09 05:20:16,375 INFO L159 IcfgInterpreter]: Started Sifa with 25 locations of interest [2024-11-09 05:20:16,375 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:20:16,375 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:20:16,375 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:20:16,375 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:20:19,036 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 103 for LOIs [2024-11-09 05:20:19,128 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:20:51,719 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '33450#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~a~0#1_154| Int)) (and (= (mod |v_ULTIMATE.start_main_~a~0#1_154| 2) 0) (<= (div |v_ULTIMATE.start_main_~a~0#1_154| 2) 9223372036854775807) (<= 0 (+ (div |v_ULTIMATE.start_main_~a~0#1_154| 2) 9223372036854775808)) (= (div |v_ULTIMATE.start_main_~a~0#1_154| 2) |ULTIMATE.start_main_~a~0#1|))) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (= |ULTIMATE.start_main_~q~0#1| 0) (exists ((|v_ULTIMATE.start_main_~b~0#1_157| Int)) (and (= (div |v_ULTIMATE.start_main_~b~0#1_157| 2) |ULTIMATE.start_main_~b~0#1|) (<= (div |v_ULTIMATE.start_main_~b~0#1_157| 2) 9223372036854775807) (<= 0 (+ (div |v_ULTIMATE.start_main_~b~0#1_157| 2) 9223372036854775808)) (= (mod |v_ULTIMATE.start_main_~b~0#1_157| 2) 0))) (<= |ULTIMATE.start_main_~y~0#1| 2147483647))' at error location [2024-11-09 05:20:51,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:20:51,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:20:51,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-09 05:20:51,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713099845] [2024-11-09 05:20:51,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:20:51,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:20:51,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:51,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:20:51,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=490, Unknown=6, NotChecked=0, Total=600 [2024-11-09 05:20:51,721 INFO L87 Difference]: Start difference. First operand 528 states and 647 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:20:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:52,186 INFO L93 Difference]: Finished difference Result 1193 states and 1518 transitions. [2024-11-09 05:20:52,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:20:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 47 [2024-11-09 05:20:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:52,189 INFO L225 Difference]: With dead ends: 1193 [2024-11-09 05:20:52,189 INFO L226 Difference]: Without dead ends: 1192 [2024-11-09 05:20:52,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 10 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=104, Invalid=490, Unknown=6, NotChecked=0, Total=600 [2024-11-09 05:20:52,190 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 272 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:52,190 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 317 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:20:52,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1192 states. [2024-11-09 05:20:52,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1192 to 1107. [2024-11-09 05:20:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1043 states have (on average 1.3537871524448706) internal successors, (1412), 1074 states have internal predecessors, (1412), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-09 05:20:52,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1466 transitions. [2024-11-09 05:20:52,281 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1466 transitions. Word has length 47 [2024-11-09 05:20:52,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:52,282 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1466 transitions. [2024-11-09 05:20:52,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 7 states have internal predecessors, (104), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-09 05:20:52,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1466 transitions. [2024-11-09 05:20:52,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 05:20:52,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:52,283 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:52,298 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:52,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:52,484 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:52,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:52,484 INFO L85 PathProgramCache]: Analyzing trace with hash 2140744553, now seen corresponding path program 1 times [2024-11-09 05:20:52,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:52,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178582416] [2024-11-09 05:20:52,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:52,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:52,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:52,907 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:52,907 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178582416] [2024-11-09 05:20:52,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178582416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:52,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675617787] [2024-11-09 05:20:52,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:52,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:52,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:52,910 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:52,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-09 05:20:52,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:52,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 05:20:52,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 05:20:53,168 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:20:53,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675617787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:53,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:20:53,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 13 [2024-11-09 05:20:53,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499130378] [2024-11-09 05:20:53,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:53,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:20:53,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:53,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:20:53,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:20:53,170 INFO L87 Difference]: Start difference. First operand 1107 states and 1466 transitions. Second operand has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:53,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:53,855 INFO L93 Difference]: Finished difference Result 1840 states and 2541 transitions. [2024-11-09 05:20:53,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:20:53,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2024-11-09 05:20:53,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:53,859 INFO L225 Difference]: With dead ends: 1840 [2024-11-09 05:20:53,860 INFO L226 Difference]: Without dead ends: 1418 [2024-11-09 05:20:53,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2024-11-09 05:20:53,861 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 195 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:53,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 62 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:20:53,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-11-09 05:20:53,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1229. [2024-11-09 05:20:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1229 states, 1161 states have (on average 1.3221360895779501) internal successors, (1535), 1186 states have internal predecessors, (1535), 37 states have call successors, (37), 6 states have call predecessors, (37), 6 states have return successors, (37), 36 states have call predecessors, (37), 37 states have call successors, (37) [2024-11-09 05:20:53,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1229 states to 1229 states and 1609 transitions. [2024-11-09 05:20:53,954 INFO L78 Accepts]: Start accepts. Automaton has 1229 states and 1609 transitions. Word has length 48 [2024-11-09 05:20:53,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:53,954 INFO L471 AbstractCegarLoop]: Abstraction has 1229 states and 1609 transitions. [2024-11-09 05:20:53,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.0) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:20:53,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1229 states and 1609 transitions. [2024-11-09 05:20:53,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:20:53,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:53,955 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 05:20:53,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-09 05:20:54,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2024-11-09 05:20:54,156 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:54,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:54,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1040490043, now seen corresponding path program 1 times [2024-11-09 05:20:54,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:54,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946541547] [2024-11-09 05:20:54,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:54,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:54,384 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:54,384 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:54,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946541547] [2024-11-09 05:20:54,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946541547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:20:54,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:20:54,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:20:54,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467538292] [2024-11-09 05:20:54,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:54,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:20:54,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:54,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:20:54,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:20:54,387 INFO L87 Difference]: Start difference. First operand 1229 states and 1609 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:54,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:54,857 INFO L93 Difference]: Finished difference Result 2177 states and 2908 transitions. [2024-11-09 05:20:54,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:20:54,858 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-09 05:20:54,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:54,862 INFO L225 Difference]: With dead ends: 2177 [2024-11-09 05:20:54,862 INFO L226 Difference]: Without dead ends: 1281 [2024-11-09 05:20:54,864 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:20:54,866 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 17 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:54,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 130 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:20:54,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2024-11-09 05:20:55,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1253. [2024-11-09 05:20:55,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1180 states have (on average 1.3093220338983051) internal successors, (1545), 1205 states have internal predecessors, (1545), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:20:55,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1629 transitions. [2024-11-09 05:20:55,029 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1629 transitions. Word has length 49 [2024-11-09 05:20:55,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:55,029 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1629 transitions. [2024-11-09 05:20:55,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:55,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1629 transitions. [2024-11-09 05:20:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-09 05:20:55,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:55,030 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:20:55,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-09 05:20:55,031 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:55,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:55,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1938571840, now seen corresponding path program 1 times [2024-11-09 05:20:55,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:55,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018393591] [2024-11-09 05:20:55,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:55,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:55,446 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:55,446 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:55,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018393591] [2024-11-09 05:20:55,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018393591] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:55,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2145873529] [2024-11-09 05:20:55,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:55,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:55,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:55,448 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:55,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-09 05:20:55,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:55,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:20:55,495 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:55,884 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:55,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:56,619 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:56,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2145873529] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:56,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:20:56,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 05:20:56,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975880916] [2024-11-09 05:20:56,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:56,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:20:56,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:20:56,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:20:56,623 INFO L87 Difference]: Start difference. First operand 1253 states and 1629 transitions. Second operand has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:57,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:57,350 INFO L93 Difference]: Finished difference Result 1478 states and 1956 transitions. [2024-11-09 05:20:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:20:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-09 05:20:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:57,354 INFO L225 Difference]: With dead ends: 1478 [2024-11-09 05:20:57,355 INFO L226 Difference]: Without dead ends: 1477 [2024-11-09 05:20:57,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:20:57,356 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 213 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:57,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 60 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:20:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2024-11-09 05:20:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1252. [2024-11-09 05:20:57,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1252 states, 1180 states have (on average 1.2957627118644068) internal successors, (1529), 1204 states have internal predecessors, (1529), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:20:57,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1252 states to 1252 states and 1613 transitions. [2024-11-09 05:20:57,449 INFO L78 Accepts]: Start accepts. Automaton has 1252 states and 1613 transitions. Word has length 49 [2024-11-09 05:20:57,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:57,450 INFO L471 AbstractCegarLoop]: Abstraction has 1252 states and 1613 transitions. [2024-11-09 05:20:57,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.285714285714286) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:57,450 INFO L276 IsEmpty]: Start isEmpty. Operand 1252 states and 1613 transitions. [2024-11-09 05:20:57,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 05:20:57,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:57,451 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:20:57,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-09 05:20:57,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:57,651 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:20:57,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:20:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1048263774, now seen corresponding path program 1 times [2024-11-09 05:20:57,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:20:57,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962638748] [2024-11-09 05:20:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:57,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:20:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:58,069 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:58,069 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:20:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962638748] [2024-11-09 05:20:58,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962638748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:58,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335092057] [2024-11-09 05:20:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:20:58,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:20:58,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:20:58,071 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:20:58,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-09 05:20:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:20:58,116 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:20:58,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:20:58,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:58,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:20:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:20:59,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335092057] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:20:59,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:20:59,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 20 [2024-11-09 05:20:59,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282239132] [2024-11-09 05:20:59,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:20:59,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:20:59,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:59,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:20:59,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2024-11-09 05:20:59,238 INFO L87 Difference]: Start difference. First operand 1252 states and 1613 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:59,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:20:59,815 INFO L93 Difference]: Finished difference Result 1300 states and 1673 transitions. [2024-11-09 05:20:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:20:59,815 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 51 [2024-11-09 05:20:59,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:20:59,818 INFO L225 Difference]: With dead ends: 1300 [2024-11-09 05:20:59,818 INFO L226 Difference]: Without dead ends: 1299 [2024-11-09 05:20:59,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2024-11-09 05:20:59,819 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 154 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:20:59,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 41 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:20:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1299 states. [2024-11-09 05:20:59,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1299 to 1251. [2024-11-09 05:20:59,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 1180 states have (on average 1.2822033898305085) internal successors, (1513), 1203 states have internal predecessors, (1513), 42 states have call successors, (42), 6 states have call predecessors, (42), 6 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-09 05:20:59,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1597 transitions. [2024-11-09 05:20:59,931 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1597 transitions. Word has length 51 [2024-11-09 05:20:59,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:20:59,931 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1597 transitions. [2024-11-09 05:20:59,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:20:59,931 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1597 transitions. [2024-11-09 05:20:59,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-09 05:20:59,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:20:59,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:20:59,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-09 05:21:00,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:00,133 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:21:00,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:21:00,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1863561517, now seen corresponding path program 1 times [2024-11-09 05:21:00,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:21:00,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810752934] [2024-11-09 05:21:00,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:00,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:21:00,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:21:00,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863128403] [2024-11-09 05:21:00,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:21:00,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:21:00,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:21:00,161 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:21:00,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-09 05:21:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:21:00,226 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:21:00,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:21:00,722 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:21:00,722 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:21:09,220 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:21:09,220 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:21:09,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810752934] [2024-11-09 05:21:09,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:21:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863128403] [2024-11-09 05:21:09,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863128403] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:21:09,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2108974780] [2024-11-09 05:21:09,222 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2024-11-09 05:21:09,223 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:21:09,223 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:21:09,223 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:21:09,223 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:21:10,708 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 05:21:10,716 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:21:19,937 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_171| Int)) (let ((.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_171| 1)) (.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_171| 2) 0))) (let ((.cse3 (or (< 0 .cse4) .cse5)) (.cse0 (not .cse5)) (.cse2 (div |v_ULTIMATE.start_main_~a~0#1_171| 2)) (.cse1 (<= .cse4 0))) (and (or (and .cse0 .cse1 (<= 0 (+ 9223372036854775809 .cse2))) (and .cse3 (<= 0 (+ 9223372036854775808 .cse2)))) (or (and (= |c_ULTIMATE.start_main_~a~0#1| .cse2) .cse3) (and .cse0 (= (+ .cse2 1) |c_ULTIMATE.start_main_~a~0#1|) .cse1)) (or (and (<= .cse2 9223372036854775807) .cse3) (and .cse0 (<= .cse2 9223372036854775806) .cse1)))))) is different from true [2024-11-09 05:21:52,083 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '49787#(exists ((|v_ULTIMATE.start_main_~b~0#1_177| Int) (|v_ULTIMATE.start_main_~p~0#1_105| Int) (|v_ULTIMATE.start_main_~a~0#1_173| Int)) (and (or (< (+ |v_ULTIMATE.start_main_~b~0#1_177| 1) 0) (not (= (mod (+ |v_ULTIMATE.start_main_~b~0#1_177| 1) 2) 1)) (not (= (mod (+ |v_ULTIMATE.start_main_~a~0#1_173| 1) 2) 0))) (<= 0 (+ ~counter~0 2147483648)) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_177|)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_173| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_177|)) (<= (+ |v_ULTIMATE.start_main_~a~0#1_173| |v_ULTIMATE.start_main_~b~0#1_177|) 9223372036854775806) (<= |v_ULTIMATE.start_main_~b~0#1_177| 9223372036854775807) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_173| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~a~0#1_173| 9223372036854775807) (<= ~counter~0 2147483647) (<= (+ 9223372036854775809 (* |v_ULTIMATE.start_main_~b~0#1_177| |v_ULTIMATE.start_main_~p~0#1_105|) |v_ULTIMATE.start_main_~p~0#1_105| (* |v_ULTIMATE.start_main_~a~0#1_173| |v_ULTIMATE.start_main_~p~0#1_105|)) 0)))' at error location [2024-11-09 05:21:52,083 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:21:52,083 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:21:52,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2024-11-09 05:21:52,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95280722] [2024-11-09 05:21:52,083 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:21:52,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:21:52,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:21:52,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:21:52,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=310, Invalid=1933, Unknown=17, NotChecked=92, Total=2352 [2024-11-09 05:21:52,085 INFO L87 Difference]: Start difference. First operand 1251 states and 1597 transitions. Second operand has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:22:19,116 WARN L286 SmtUtils]: Spent 26.75s on a formula simplification. DAG size of input: 62 DAG size of output: 41 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:22:20,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:25,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:27,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:29,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:31,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:37,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:22:40,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:22:40,901 INFO L93 Difference]: Finished difference Result 1840 states and 2400 transitions. [2024-11-09 05:22:40,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-09 05:22:40,901 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 52 [2024-11-09 05:22:40,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:22:40,906 INFO L225 Difference]: With dead ends: 1840 [2024-11-09 05:22:40,906 INFO L226 Difference]: Without dead ends: 1837 [2024-11-09 05:22:40,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 1150 ImplicationChecksByTransitivity, 78.1s TimeCoverageRelationStatistics Valid=444, Invalid=2623, Unknown=17, NotChecked=108, Total=3192 [2024-11-09 05:22:40,907 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 527 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 1234 mSolverCounterSat, 91 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1234 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:22:40,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 284 Invalid, 1329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1234 Invalid, 4 Unknown, 0 Unchecked, 19.0s Time] [2024-11-09 05:22:40,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2024-11-09 05:22:41,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1393. [2024-11-09 05:22:41,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1393 states, 1316 states have (on average 1.278115501519757) internal successors, (1682), 1339 states have internal predecessors, (1682), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-09 05:22:41,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1393 states to 1393 states and 1778 transitions. [2024-11-09 05:22:41,028 INFO L78 Accepts]: Start accepts. Automaton has 1393 states and 1778 transitions. Word has length 52 [2024-11-09 05:22:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:22:41,028 INFO L471 AbstractCegarLoop]: Abstraction has 1393 states and 1778 transitions. [2024-11-09 05:22:41,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 5.470588235294118) internal successors, (93), 18 states have internal predecessors, (93), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:22:41,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1393 states and 1778 transitions. [2024-11-09 05:22:41,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-09 05:22:41,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:22:41,029 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:22:41,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-11-09 05:22:41,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:22:41,229 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:22:41,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:22:41,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1935832324, now seen corresponding path program 1 times [2024-11-09 05:22:41,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:22:41,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975875634] [2024-11-09 05:22:41,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:41,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:22:41,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:22:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1955773756] [2024-11-09 05:22:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:22:41,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:22:41,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:22:41,258 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:22:41,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-09 05:22:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:22:41,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-09 05:22:41,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:22:41,924 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:22:41,925 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:22:46,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:22:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975875634] [2024-11-09 05:22:46,407 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:22:46,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955773756] [2024-11-09 05:22:46,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955773756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:22:46,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2106783071] [2024-11-09 05:22:46,409 INFO L159 IcfgInterpreter]: Started Sifa with 37 locations of interest [2024-11-09 05:22:46,409 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:22:46,409 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:22:46,410 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:22:46,410 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:22:48,557 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 05:22:48,568 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:22:57,343 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_181| Int)) (let ((.cse5 (= (mod |v_ULTIMATE.start_main_~a~0#1_181| 2) 0)) (.cse4 (+ |v_ULTIMATE.start_main_~a~0#1_181| 1))) (let ((.cse3 (or .cse5 (< 0 .cse4))) (.cse0 (not .cse5)) (.cse2 (div |v_ULTIMATE.start_main_~a~0#1_181| 2)) (.cse1 (<= .cse4 0))) (and (or (and .cse0 .cse1 (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse2 1))) (and (= |c_ULTIMATE.start_main_~a~0#1| .cse2) .cse3)) (or (and .cse3 (<= .cse2 9223372036854775807)) (and .cse0 .cse1 (<= .cse2 9223372036854775806))) (or (and .cse3 (<= 0 (+ 9223372036854775808 .cse2))) (and .cse0 (<= 0 (+ 9223372036854775809 .cse2)) .cse1)))))) is different from true [2024-11-09 05:23:55,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '53611#(exists ((|v_ULTIMATE.start_main_~b~0#1_187| Int) (|v_ULTIMATE.start_main_~a~0#1_183| Int) (|v_ULTIMATE.start_main_~p~0#1_112| Int)) (and (<= 0 (+ ~counter~0 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_183| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_187|)) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_183| 9223372036854775808)) (<= |v_ULTIMATE.start_main_~a~0#1_183| 9223372036854775807) (<= 9223372036854775808 (+ (* |v_ULTIMATE.start_main_~a~0#1_183| |v_ULTIMATE.start_main_~p~0#1_112|) |v_ULTIMATE.start_main_~p~0#1_112| (* |v_ULTIMATE.start_main_~b~0#1_187| |v_ULTIMATE.start_main_~p~0#1_112|))) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_187|)) (<= ~counter~0 2147483647) (<= (+ |v_ULTIMATE.start_main_~a~0#1_183| |v_ULTIMATE.start_main_~b~0#1_187|) 9223372036854775806) (<= |v_ULTIMATE.start_main_~b~0#1_187| 9223372036854775807) (or (< (+ |v_ULTIMATE.start_main_~b~0#1_187| 1) 0) (not (= (mod (+ |v_ULTIMATE.start_main_~b~0#1_187| 1) 2) 1)) (not (= (mod (+ |v_ULTIMATE.start_main_~a~0#1_183| 1) 2) 0)))))' at error location [2024-11-09 05:23:55,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:23:55,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:23:55,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-09 05:23:55,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174194075] [2024-11-09 05:23:55,793 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:23:55,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:23:55,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:23:55,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:23:55,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=288, Invalid=1860, Unknown=18, NotChecked=90, Total=2256 [2024-11-09 05:23:55,795 INFO L87 Difference]: Start difference. First operand 1393 states and 1778 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:23:57,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:23:57,715 INFO L93 Difference]: Finished difference Result 1508 states and 1928 transitions. [2024-11-09 05:23:57,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 05:23:57,715 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 53 [2024-11-09 05:23:57,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:23:57,719 INFO L225 Difference]: With dead ends: 1508 [2024-11-09 05:23:57,719 INFO L226 Difference]: Without dead ends: 1497 [2024-11-09 05:23:57,720 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 817 ImplicationChecksByTransitivity, 70.2s TimeCoverageRelationStatistics Valid=302, Invalid=1940, Unknown=18, NotChecked=92, Total=2352 [2024-11-09 05:23:57,720 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 101 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:23:57,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 312 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-09 05:23:57,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-11-09 05:23:57,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1462. [2024-11-09 05:23:57,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1462 states, 1382 states have (on average 1.2713458755426919) internal successors, (1757), 1405 states have internal predecessors, (1757), 51 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (51), 50 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-09 05:23:57,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 1859 transitions. [2024-11-09 05:23:57,889 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 1859 transitions. Word has length 53 [2024-11-09 05:23:57,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:23:57,890 INFO L471 AbstractCegarLoop]: Abstraction has 1462 states and 1859 transitions. [2024-11-09 05:23:57,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:23:57,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 1859 transitions. [2024-11-09 05:23:57,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:23:57,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:23:57,891 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:23:57,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2024-11-09 05:23:58,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:23:58,091 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:23:58,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:23:58,092 INFO L85 PathProgramCache]: Analyzing trace with hash -382582961, now seen corresponding path program 1 times [2024-11-09 05:23:58,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:23:58,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486983350] [2024-11-09 05:23:58,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:23:58,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:23:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:23:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:23:58,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:23:58,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486983350] [2024-11-09 05:23:58,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486983350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:23:58,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:23:58,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:23:58,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369044137] [2024-11-09 05:23:58,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:23:58,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:23:58,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:23:58,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:23:58,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:23:58,786 INFO L87 Difference]: Start difference. First operand 1462 states and 1859 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:23:59,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:23:59,784 INFO L93 Difference]: Finished difference Result 2126 states and 2765 transitions. [2024-11-09 05:23:59,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:23:59,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2024-11-09 05:23:59,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:23:59,790 INFO L225 Difference]: With dead ends: 2126 [2024-11-09 05:23:59,790 INFO L226 Difference]: Without dead ends: 1423 [2024-11-09 05:23:59,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:23:59,792 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 37 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:23:59,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 114 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-09 05:23:59,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2024-11-09 05:23:59,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1357. [2024-11-09 05:23:59,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1357 states, 1278 states have (on average 1.2644757433489828) internal successors, (1616), 1301 states have internal predecessors, (1616), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:23:59,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1357 states to 1357 states and 1716 transitions. [2024-11-09 05:23:59,957 INFO L78 Accepts]: Start accepts. Automaton has 1357 states and 1716 transitions. Word has length 55 [2024-11-09 05:23:59,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:23:59,957 INFO L471 AbstractCegarLoop]: Abstraction has 1357 states and 1716 transitions. [2024-11-09 05:23:59,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:23:59,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1357 states and 1716 transitions. [2024-11-09 05:23:59,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:23:59,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:23:59,959 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:23:59,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-09 05:23:59,960 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:23:59,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:23:59,960 INFO L85 PathProgramCache]: Analyzing trace with hash -813908886, now seen corresponding path program 1 times [2024-11-09 05:23:59,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:23:59,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852482218] [2024-11-09 05:23:59,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:23:59,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:23:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:00,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:00,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:00,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852482218] [2024-11-09 05:24:00,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852482218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:00,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1409017824] [2024-11-09 05:24:00,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:00,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:00,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:00,964 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:00,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-09 05:24:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:01,037 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:24:01,039 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:01,890 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:01,890 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:03,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1409017824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:03,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [540924307] [2024-11-09 05:24:03,173 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:24:03,173 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:03,174 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:03,174 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:03,174 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:24:04,597 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 05:24:04,607 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:24:15,693 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '60931#(and (<= 1 |#StackHeapBarrier|) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= |ULTIMATE.start_main_~a~0#1| 2147483646) (= (mod (+ |ULTIMATE.start_main_~a~0#1| 1) 2) 1) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (exists ((|v_ULTIMATE.start_main_~b~0#1_193| Int)) (and (<= (+ |v_ULTIMATE.start_main_~b~0#1_193| 1) 0) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_193|)) (= (mod |v_ULTIMATE.start_main_~b~0#1_193| 2) 0))) (<= ~counter~0 2147483647) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~a~0#1| 1)))' at error location [2024-11-09 05:24:15,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:24:15,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:24:15,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2024-11-09 05:24:15,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558020163] [2024-11-09 05:24:15,694 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:24:15,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:24:15,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:15,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:24:15,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=207, Invalid=1515, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 05:24:15,696 INFO L87 Difference]: Start difference. First operand 1357 states and 1716 transitions. Second operand has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:24:17,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:17,938 INFO L93 Difference]: Finished difference Result 1806 states and 2323 transitions. [2024-11-09 05:24:17,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:24:17,939 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-09 05:24:17,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:17,944 INFO L225 Difference]: With dead ends: 1806 [2024-11-09 05:24:17,944 INFO L226 Difference]: Without dead ends: 1359 [2024-11-09 05:24:17,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 109 SyntacticMatches, 10 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1032 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=337, Invalid=2315, Unknown=0, NotChecked=0, Total=2652 [2024-11-09 05:24:17,946 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 101 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 788 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 809 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:17,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 221 Invalid, 809 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 788 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:24:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1359 states. [2024-11-09 05:24:18,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1359 to 1346. [2024-11-09 05:24:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1267 states have (on average 1.2636148382004735) internal successors, (1601), 1290 states have internal predecessors, (1601), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:24:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1701 transitions. [2024-11-09 05:24:18,105 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1701 transitions. Word has length 55 [2024-11-09 05:24:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:18,105 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1701 transitions. [2024-11-09 05:24:18,105 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 12 states have internal predecessors, (99), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:24:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1701 transitions. [2024-11-09 05:24:18,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-09 05:24:18,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:18,107 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:24:18,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-09 05:24:18,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2024-11-09 05:24:18,307 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:24:18,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:18,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1178897866, now seen corresponding path program 1 times [2024-11-09 05:24:18,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:18,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030612047] [2024-11-09 05:24:18,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:18,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:24:18,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1291348743] [2024-11-09 05:24:18,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:18,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:18,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:18,342 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:18,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-09 05:24:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:18,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 05:24:18,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:18,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:24:18,914 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:18,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030612047] [2024-11-09 05:24:18,915 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:24:18,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291348743] [2024-11-09 05:24:18,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291348743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:24:18,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:24:18,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 05:24:18,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452307946] [2024-11-09 05:24:18,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:24:18,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:24:18,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:18,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:24:18,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:24:18,917 INFO L87 Difference]: Start difference. First operand 1346 states and 1701 transitions. Second operand has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:24:19,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:19,918 INFO L93 Difference]: Finished difference Result 1448 states and 1821 transitions. [2024-11-09 05:24:19,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 05:24:19,919 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 55 [2024-11-09 05:24:19,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:19,922 INFO L225 Difference]: With dead ends: 1448 [2024-11-09 05:24:19,922 INFO L226 Difference]: Without dead ends: 1447 [2024-11-09 05:24:19,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=109, Unknown=0, NotChecked=0, Total=182 [2024-11-09 05:24:19,923 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 72 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:19,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 168 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 05:24:19,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1447 states. [2024-11-09 05:24:20,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1447 to 1346. [2024-11-09 05:24:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1267 states have (on average 1.260457774269929) internal successors, (1597), 1290 states have internal predecessors, (1597), 50 states have call successors, (50), 6 states have call predecessors, (50), 6 states have return successors, (50), 49 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:24:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1697 transitions. [2024-11-09 05:24:20,170 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1697 transitions. Word has length 55 [2024-11-09 05:24:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:20,170 INFO L471 AbstractCegarLoop]: Abstraction has 1346 states and 1697 transitions. [2024-11-09 05:24:20,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.142857142857143) internal successors, (50), 8 states have internal predecessors, (50), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:24:20,171 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1697 transitions. [2024-11-09 05:24:20,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:24:20,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:20,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:24:20,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-09 05:24:20,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-09 05:24:20,373 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:24:20,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:20,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1696850016, now seen corresponding path program 1 times [2024-11-09 05:24:20,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:20,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666125020] [2024-11-09 05:24:20,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:20,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:21,114 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:21,114 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:21,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666125020] [2024-11-09 05:24:21,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666125020] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:21,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902605685] [2024-11-09 05:24:21,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:21,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:21,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:21,116 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:21,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-09 05:24:21,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:21,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:24:21,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:21,998 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:21,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:22,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902605685] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:22,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1952534859] [2024-11-09 05:24:22,401 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:24:22,401 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:22,402 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:22,402 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:22,402 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:24:25,430 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 105 for LOIs [2024-11-09 05:24:25,484 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:24:36,960 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '67825#(exists ((|v_ULTIMATE.start_main_~p~0#1_115| Int) (|v_ULTIMATE.start_main_~b~0#1_202| Int) (|v_ULTIMATE.start_main_~a~0#1_195| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~b~0#1_202| 2147483646) (<= 0 (+ 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_202|)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (<= |ULTIMATE.start_main_~x~0#1| 2147483647) (<= 0 (+ |ULTIMATE.start_main_~x~0#1| 2147483648)) (<= 1 ~counter~0) (<= |v_ULTIMATE.start_main_~a~0#1_195| 2147483646) (<= 0 (+ 2147483649 |v_ULTIMATE.start_main_~a~0#1_195|)) (<= |ULTIMATE.start_main_~y~0#1| 2147483647) (= |v_ULTIMATE.start_main_~p~0#1_115| 1) (<= 0 (+ |v_ULTIMATE.start_main_~a~0#1_195| 9223372036854775808 |v_ULTIMATE.start_main_~b~0#1_202|))))' at error location [2024-11-09 05:24:36,960 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:24:36,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:24:36,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 05:24:36,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652491021] [2024-11-09 05:24:36,961 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:24:36,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:24:36,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:36,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:24:36,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=737, Unknown=0, NotChecked=0, Total=930 [2024-11-09 05:24:36,962 INFO L87 Difference]: Start difference. First operand 1346 states and 1697 transitions. Second operand has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:24:38,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:24:38,656 INFO L93 Difference]: Finished difference Result 1917 states and 2470 transitions. [2024-11-09 05:24:38,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 05:24:38,657 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-11-09 05:24:38,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:24:38,661 INFO L225 Difference]: With dead ends: 1917 [2024-11-09 05:24:38,662 INFO L226 Difference]: Without dead ends: 1312 [2024-11-09 05:24:38,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 81 SyntacticMatches, 27 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1038 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=284, Invalid=1122, Unknown=0, NotChecked=0, Total=1406 [2024-11-09 05:24:38,663 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:24:38,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 153 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-09 05:24:38,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2024-11-09 05:24:38,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1280. [2024-11-09 05:24:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1204 states have (on average 1.2533222591362125) internal successors, (1509), 1226 states have internal predecessors, (1509), 47 states have call successors, (47), 6 states have call predecessors, (47), 6 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 05:24:38,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1603 transitions. [2024-11-09 05:24:38,801 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1603 transitions. Word has length 56 [2024-11-09 05:24:38,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:24:38,801 INFO L471 AbstractCegarLoop]: Abstraction has 1280 states and 1603 transitions. [2024-11-09 05:24:38,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:24:38,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1603 transitions. [2024-11-09 05:24:38,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:24:38,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:24:38,803 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-09 05:24:38,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-09 05:24:39,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:39,004 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:24:39,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:24:39,004 INFO L85 PathProgramCache]: Analyzing trace with hash 522529902, now seen corresponding path program 1 times [2024-11-09 05:24:39,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:24:39,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744718484] [2024-11-09 05:24:39,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:39,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:24:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:24:39,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006121037] [2024-11-09 05:24:39,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:24:39,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:24:39,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:24:39,028 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:24:39,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2024-11-09 05:24:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:24:39,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 05:24:39,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:24:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:24:40,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:24:41,085 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:24:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744718484] [2024-11-09 05:24:41,085 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:24:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006121037] [2024-11-09 05:24:41,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006121037] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:24:41,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43399830] [2024-11-09 05:24:41,088 INFO L159 IcfgInterpreter]: Started Sifa with 38 locations of interest [2024-11-09 05:24:41,088 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:24:41,088 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:24:41,088 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:24:41,089 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:24:42,547 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 54 for LOIs [2024-11-09 05:24:42,567 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:24:54,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [43399830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:24:54,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:24:54,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 29 [2024-11-09 05:24:54,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913761552] [2024-11-09 05:24:54,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:24:54,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 05:24:54,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:24:54,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 05:24:54,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1014, Unknown=0, NotChecked=0, Total=1190 [2024-11-09 05:24:54,426 INFO L87 Difference]: Start difference. First operand 1280 states and 1603 transitions. Second operand has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:24:58,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:25:14,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:25:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:18,795 INFO L93 Difference]: Finished difference Result 1295 states and 1611 transitions. [2024-11-09 05:25:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-09 05:25:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 56 [2024-11-09 05:25:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:18,800 INFO L225 Difference]: With dead ends: 1295 [2024-11-09 05:25:18,800 INFO L226 Difference]: Without dead ends: 1289 [2024-11-09 05:25:18,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 106 SyntacticMatches, 13 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 977 ImplicationChecksByTransitivity, 22.6s TimeCoverageRelationStatistics Valid=477, Invalid=2385, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:25:18,801 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 198 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 1321 mSolverCounterSat, 52 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1321 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:18,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 59 Invalid, 1375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1321 Invalid, 2 Unknown, 0 Unchecked, 14.0s Time] [2024-11-09 05:25:18,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2024-11-09 05:25:18,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1282. [2024-11-09 05:25:18,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1205 states have (on average 1.2481327800829876) internal successors, (1504), 1227 states have internal predecessors, (1504), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 05:25:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1598 transitions. [2024-11-09 05:25:19,003 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1598 transitions. Word has length 56 [2024-11-09 05:25:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:19,003 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1598 transitions. [2024-11-09 05:25:19,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 1.565217391304348) internal successors, (36), 22 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:25:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1598 transitions. [2024-11-09 05:25:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 05:25:19,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:19,005 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2024-11-09 05:25:19,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2024-11-09 05:25:19,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:19,209 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:25:19,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:19,210 INFO L85 PathProgramCache]: Analyzing trace with hash -748774945, now seen corresponding path program 1 times [2024-11-09 05:25:19,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:25:19,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289834713] [2024-11-09 05:25:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:19,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:25:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:25:19,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1525139156] [2024-11-09 05:25:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:19,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:19,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:25:19,242 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:25:19,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2024-11-09 05:25:19,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:19,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 05:25:19,332 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:28,605 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 05:25:28,605 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:31,838 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 05:25:31,839 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:25:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289834713] [2024-11-09 05:25:31,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:25:31,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525139156] [2024-11-09 05:25:31,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525139156] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-09 05:25:31,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:25:31,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 16 [2024-11-09 05:25:31,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233285237] [2024-11-09 05:25:31,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:25:31,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:25:31,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:25:31,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:25:31,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=212, Unknown=3, NotChecked=0, Total=272 [2024-11-09 05:25:31,841 INFO L87 Difference]: Start difference. First operand 1282 states and 1598 transitions. Second operand has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:25:38,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 05:25:40,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:25:40,390 INFO L93 Difference]: Finished difference Result 1283 states and 1598 transitions. [2024-11-09 05:25:40,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:25:40,391 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 56 [2024-11-09 05:25:40,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:25:40,394 INFO L225 Difference]: With dead ends: 1283 [2024-11-09 05:25:40,394 INFO L226 Difference]: Without dead ends: 1282 [2024-11-09 05:25:40,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=64, Invalid=239, Unknown=3, NotChecked=0, Total=306 [2024-11-09 05:25:40,395 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 84 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:25:40,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 90 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 8.3s Time] [2024-11-09 05:25:40,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2024-11-09 05:25:40,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1282. [2024-11-09 05:25:40,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1282 states, 1205 states have (on average 1.2431535269709544) internal successors, (1498), 1227 states have internal predecessors, (1498), 47 states have call successors, (47), 7 states have call predecessors, (47), 7 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 05:25:40,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1282 states to 1282 states and 1592 transitions. [2024-11-09 05:25:40,550 INFO L78 Accepts]: Start accepts. Automaton has 1282 states and 1592 transitions. Word has length 56 [2024-11-09 05:25:40,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:25:40,550 INFO L471 AbstractCegarLoop]: Abstraction has 1282 states and 1592 transitions. [2024-11-09 05:25:40,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 9.2) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:25:40,550 INFO L276 IsEmpty]: Start isEmpty. Operand 1282 states and 1592 transitions. [2024-11-09 05:25:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:25:40,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:25:40,552 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:25:40,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Ended with exit code 0 [2024-11-09 05:25:40,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:40,753 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:25:40,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:25:40,753 INFO L85 PathProgramCache]: Analyzing trace with hash -310404846, now seen corresponding path program 1 times [2024-11-09 05:25:40,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:25:40,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191355791] [2024-11-09 05:25:40,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:40,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:25:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:25:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [4269526] [2024-11-09 05:25:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:25:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:25:40,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:25:40,780 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:25:40,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2024-11-09 05:25:40,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:25:40,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 05:25:40,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:25:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 05:25:41,263 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:25:41,800 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:25:41,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191355791] [2024-11-09 05:25:41,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:25:41,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4269526] [2024-11-09 05:25:41,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4269526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:25:41,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1206025174] [2024-11-09 05:25:41,803 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 05:25:41,804 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:25:41,804 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:25:41,805 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:25:41,805 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:26:07,795 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 05:26:07,873 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:26:17,211 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_219| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_main_~a~0#1_219| 1)) (.cse4 (= (mod |v_ULTIMATE.start_main_~a~0#1_219| 2) 0))) (let ((.cse1 (not .cse4)) (.cse2 (<= .cse5 0)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_219| 2)) (.cse3 (or .cse4 (< 0 .cse5)))) (and (or (and (<= .cse0 9223372036854775806) .cse1 .cse2) (and .cse3 (<= .cse0 9223372036854775807))) (or (and (<= 0 (+ 9223372036854775809 .cse0)) .cse1 .cse2) (and (<= 0 (+ 9223372036854775808 .cse0)) .cse3)) (or (and .cse1 (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse0 1)) .cse2) (and (= |c_ULTIMATE.start_main_~a~0#1| .cse0) .cse3)))))) is different from true [2024-11-09 05:26:35,835 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '77833#(and (<= 0 (+ ~counter~0 2147483648)) (exists ((|v_ULTIMATE.start_main_~a~0#1_222| Int) (|v_ULTIMATE.start_main_~p~0#1_127| Int) (|v_ULTIMATE.start_main_~b~0#1_223| Int)) (and (<= (* |v_ULTIMATE.start_main_~a~0#1_222| |v_ULTIMATE.start_main_~b~0#1_223|) 9223372036854775807) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_222| |v_ULTIMATE.start_main_~b~0#1_223|) 9223372036854775808)) (<= 0 (+ 9223372036854775808 (* |v_ULTIMATE.start_main_~a~0#1_222| |v_ULTIMATE.start_main_~b~0#1_223| |v_ULTIMATE.start_main_~p~0#1_127|))) (<= (* |v_ULTIMATE.start_main_~a~0#1_222| |v_ULTIMATE.start_main_~b~0#1_223| |v_ULTIMATE.start_main_~p~0#1_127|) 9223372036854775807))) (<= ~counter~0 2147483647))' at error location [2024-11-09 05:26:35,835 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:26:35,835 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:26:35,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-11-09 05:26:35,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296094928] [2024-11-09 05:26:35,835 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:26:35,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:26:35,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:26:35,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:26:35,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=732, Unknown=8, NotChecked=58, Total=992 [2024-11-09 05:26:35,836 INFO L87 Difference]: Start difference. First operand 1282 states and 1592 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:26:39,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:26:39,385 INFO L93 Difference]: Finished difference Result 1439 states and 1789 transitions. [2024-11-09 05:26:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:26:39,385 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 57 [2024-11-09 05:26:39,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:26:39,388 INFO L225 Difference]: With dead ends: 1439 [2024-11-09 05:26:39,388 INFO L226 Difference]: Without dead ends: 1438 [2024-11-09 05:26:39,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 30.1s TimeCoverageRelationStatistics Valid=210, Invalid=841, Unknown=9, NotChecked=62, Total=1122 [2024-11-09 05:26:39,389 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 58 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:26:39,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 170 Invalid, 332 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:26:39,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1438 states. [2024-11-09 05:26:39,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1438 to 1351. [2024-11-09 05:26:39,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1351 states, 1271 states have (on average 1.2352478363493313) internal successors, (1570), 1293 states have internal predecessors, (1570), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:26:39,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1670 transitions. [2024-11-09 05:26:39,568 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1670 transitions. Word has length 57 [2024-11-09 05:26:39,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:26:39,568 INFO L471 AbstractCegarLoop]: Abstraction has 1351 states and 1670 transitions. [2024-11-09 05:26:39,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:26:39,569 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1670 transitions. [2024-11-09 05:26:39,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-09 05:26:39,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:26:39,570 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:26:39,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2024-11-09 05:26:39,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53,39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:39,771 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:26:39,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:26:39,772 INFO L85 PathProgramCache]: Analyzing trace with hash 950518840, now seen corresponding path program 2 times [2024-11-09 05:26:39,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:26:39,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427642382] [2024-11-09 05:26:39,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:26:39,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:26:39,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:26:39,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [565138908] [2024-11-09 05:26:39,807 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:26:39,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:26:39,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:26:39,809 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:26:39,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2024-11-09 05:26:39,876 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:26:39,876 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:26:39,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-09 05:26:39,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:26:49,242 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 1 proven. 20 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 05:26:49,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:26:49,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:26:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427642382] [2024-11-09 05:26:49,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:26:49,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565138908] [2024-11-09 05:26:49,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565138908] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:26:49,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1598480691] [2024-11-09 05:26:49,626 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 05:26:49,627 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:26:49,627 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:26:49,627 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:26:49,627 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:27:15,441 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 05:27:15,451 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:27:21,210 WARN L873 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_main_~a~0#1_237| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_main_~a~0#1_237| 1)) (.cse4 (= (mod |v_ULTIMATE.start_main_~a~0#1_237| 2) 0))) (let ((.cse2 (not .cse4)) (.cse3 (<= .cse5 0)) (.cse0 (div |v_ULTIMATE.start_main_~a~0#1_237| 2)) (.cse1 (or .cse4 (< 0 .cse5)))) (and (or (and (<= .cse0 9223372036854775807) .cse1) (and .cse2 .cse3 (<= .cse0 9223372036854775806))) (or (and .cse1 (= |c_ULTIMATE.start_main_~a~0#1| .cse0)) (and .cse2 (= |c_ULTIMATE.start_main_~a~0#1| (+ .cse0 1)) .cse3)) (or (and .cse2 (<= 0 (+ 9223372036854775809 .cse0)) .cse3) (and (<= 0 (+ 9223372036854775808 .cse0)) .cse1)))))) is different from true [2024-11-09 05:27:59,220 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '81115#(and (<= 0 (+ ~counter~0 2147483648)) (<= ~counter~0 2147483647) (exists ((|v_ULTIMATE.start_main_~b~0#1_230| Int) (|v_ULTIMATE.start_main_~a~0#1_240| Int) (|v_ULTIMATE.start_main_~p~0#1_134| Int)) (and (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_240| |v_ULTIMATE.start_main_~b~0#1_230|) 9223372036854775808)) (<= 0 (+ (* |v_ULTIMATE.start_main_~a~0#1_240| |v_ULTIMATE.start_main_~b~0#1_230| |v_ULTIMATE.start_main_~p~0#1_134|) 9223372036854775808)) (<= (* |v_ULTIMATE.start_main_~a~0#1_240| |v_ULTIMATE.start_main_~b~0#1_230| |v_ULTIMATE.start_main_~p~0#1_134|) 9223372036854775807) (<= (* |v_ULTIMATE.start_main_~a~0#1_240| |v_ULTIMATE.start_main_~b~0#1_230|) 9223372036854775807))))' at error location [2024-11-09 05:27:59,220 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:27:59,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:27:59,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-09 05:27:59,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221291767] [2024-11-09 05:27:59,221 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:27:59,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:27:59,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:27:59,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:27:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=901, Unknown=16, NotChecked=64, Total=1190 [2024-11-09 05:27:59,226 INFO L87 Difference]: Start difference. First operand 1351 states and 1670 transitions. Second operand has 7 states, 5 states have (on average 8.2) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:28:01,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:05,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:07,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:09,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:11,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:13,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:15,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:17,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:19,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:21,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:23,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:25,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:27,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:29,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:31,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:33,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:35,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:37,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:39,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:41,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:43,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:47,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:49,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:51,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:53,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:55,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:28:58,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:00,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:02,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:04,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:07,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:09,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:11,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:13,251 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:15,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:17,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:19,886 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:21,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:23,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:26,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:28,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:30,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:32,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:34,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:36,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:38,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:41,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:43,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:45,501 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:47,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:49,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:51,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:53,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:55,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:57,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:29:59,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:30:01,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:30:04,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:30:06,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:30:08,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 05:30:09,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:30:09,059 INFO L93 Difference]: Finished difference Result 1423 states and 1749 transitions. [2024-11-09 05:30:09,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:30:09,060 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2024-11-09 05:30:09,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:30:09,062 INFO L225 Difference]: With dead ends: 1423 [2024-11-09 05:30:09,062 INFO L226 Difference]: Without dead ends: 1422 [2024-11-09 05:30:09,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 96 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 56.4s TimeCoverageRelationStatistics Valid=221, Invalid=1027, Unknown=16, NotChecked=68, Total=1332 [2024-11-09 05:30:09,063 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 56 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 2 mSolverCounterUnsat, 60 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 125.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 60 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 125.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:30:09,064 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 189 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 354 Invalid, 60 Unknown, 0 Unchecked, 125.4s Time] [2024-11-09 05:30:09,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-11-09 05:30:09,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1387. [2024-11-09 05:30:09,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1307 states have (on average 1.2310635042081102) internal successors, (1609), 1329 states have internal predecessors, (1609), 50 states have call successors, (50), 7 states have call predecessors, (50), 7 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-09 05:30:09,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 1709 transitions. [2024-11-09 05:30:09,205 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 1709 transitions. Word has length 57 [2024-11-09 05:30:09,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:30:09,206 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 1709 transitions. [2024-11-09 05:30:09,206 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 8.2) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 05:30:09,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 1709 transitions. [2024-11-09 05:30:09,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-09 05:30:09,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:30:09,207 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2024-11-09 05:30:09,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2024-11-09 05:30:09,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:09,412 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2024-11-09 05:30:09,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:30:09,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1032615570, now seen corresponding path program 1 times [2024-11-09 05:30:09,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:30:09,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766096251] [2024-11-09 05:30:09,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:09,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:30:09,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:30:09,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1365227619] [2024-11-09 05:30:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:30:09,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:30:09,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:30:09,436 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:30:09,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9ad62224-b9e2-4a16-8ec2-cc7b91d5c5d0/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2024-11-09 05:30:09,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:30:09,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-09 05:30:09,511 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:30:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:30:11,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:30:52,924 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:30:52,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:30:52,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766096251] [2024-11-09 05:30:52,924 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:30:52,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365227619] [2024-11-09 05:30:52,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365227619] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:30:52,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1337036284] [2024-11-09 05:30:52,926 INFO L159 IcfgInterpreter]: Started Sifa with 32 locations of interest [2024-11-09 05:30:52,927 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:30:52,927 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:30:52,927 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:30:52,927 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:31:16,904 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 43 for LOIs [2024-11-09 05:31:16,913 INFO L180 IcfgInterpreter]: Interpretation finished